I tested with the radeon card only, I removed the geforce but I'm gonna
keep that card around as backup and in case I go into an adventure with Mac
OS X or Morph OS in a distant future, but here's the Xorg.0.log where I
tested with some kernel parameters:

[    63.127]
X.Org X Server 1.21.1.13
X Protocol Version 11, Revision 0
[    63.127] Current Operating System: Linux PowerMacG5 6.10.9-powerpc64 #1
SMP Debian 6.10.9-1 (2024-09-08) ppc64
[    63.127] Kernel command line: BOOT_IMAGE=/boot/vmlinux-6.10.9-powerpc64
root=UUID=234b5c29-39c2-494c-b400-13d0db6eaf44 ro radeon.modeset=1
radeon.pcie_gen2=0 video=offb:off video=radeonfb:off nouveau.modeset=0
mitigations=off quiet
[    63.127] xorg-server 2:21.1.13-2 (https://www.debian.org/support)
[    63.127] Current version of pixman: 0.42.2
[    63.127] Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
[    63.127] Markers: (--) probed, (**) from config file, (==) default
setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    63.127] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Sep 12
14:54:39 2024
[    63.306] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    63.428] (==) No Layout section.  Using the first Screen section.
[    63.428] (==) No screen section available. Using defaults.
[    63.428] (**) |-->Screen "Default Screen Section" (0)
[    63.428] (**) |   |-->Monitor "<default monitor>"
[    63.429] (==) No monitor specified for screen "Default Screen Section".
Using a default monitor configuration.
[    63.429] (**) Allowing byte-swapped clients
[    63.429] (==) Automatically adding devices
[    63.429] (==) Automatically enabling devices
[    63.429] (==) Automatically adding GPU devices
[    63.429] (==) Automatically binding GPU devices
[    63.429] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    63.541] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not
exist.
[    63.541] Entry deleted from font path.
[    64.175] (==) FontPath set to:
/usr/share/fonts/X11/misc,
/usr/share/fonts/X11/100dpi/:unscaled,
/usr/share/fonts/X11/75dpi/:unscaled,
/usr/share/fonts/X11/Type1,
/usr/share/fonts/X11/100dpi,
/usr/share/fonts/X11/75dpi,
built-ins
[    64.175] (==) ModulePath set to "/usr/lib/xorg/modules"
[    64.175] (II) The server relies on udev to provide the list of input
devices.
If no devices become available, reconfigure udev or disable AutoAddDevices.
[    64.206] (II) Loader magic: 0x1052a2db8
[    64.206] (II) Module ABI versions:
[    64.206] X.Org ANSI C Emulation: 0.4
[    64.206] X.Org Video Driver: 25.2
[    64.206] X.Org XInput driver : 24.4
[    64.206] X.Org Server Extension : 10.0
[    64.208] (++) using VT number 7

[    64.208] (II) systemd-logind: logind integration requires -keeptty and
-keeptty was not provided, disabling logind integration
[    64.212] (II) xfree86: Adding drm device (/dev/dri/card0)
[    64.212] (II) Platform probe for
/sys/devices/pci0000:00/0000:00:0b.0/0000:0a:00.0/drm/card0
[    64.270] (--) PCI:*(10@0:0:0) 1002:6718:1682:3130 rev 0, Mem @
0x90000000/268435456, 0xa0020000/131072, I/O @ 0x00000400/256, BIOS @
0x????????/131072
[    64.270] (II) LoadModule: "glx"
[    65.015] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    66.155] (II) Module glx: vendor="X.Org Foundation"
[    66.155] compiled for 1.21.1.13, module version = 1.0.0
[    66.155] ABI class: X.Org Server Extension, version 10.0
[    66.155] (II) Applying OutputClass "Radeon" to /dev/dri/card0
[    66.155] loading driver: radeon
[    66.155] (==) Matched radeon as autoconfigured driver 0
[    66.155] (==) Matched ati as autoconfigured driver 1
[    66.155] (==) Matched modesetting as autoconfigured driver 2
[    66.155] (==) Matched fbdev as autoconfigured driver 3
[    66.155] (==) Assigned the driver to the xf86ConfigLayout
[    66.155] (II) LoadModule: "radeon"
[    66.155] (II) Loading /usr/lib/xorg/modules/drivers/radeon_drv.so
[    85.370] (II) Module radeon: vendor="X.Org Foundation"
[    85.370] compiled for 1.21.1.9, module version = 22.0.0
[    85.370] Module class: X.Org Video Driver
[    85.370] ABI class: X.Org Video Driver, version 25.2
[    85.371] (II) LoadModule: "ati"
[    85.371] (II) Loading /usr/lib/xorg/modules/drivers/ati_drv.so
[    85.387] (II) Module ati: vendor="X.Org Foundation"
[    85.387] compiled for 1.21.1.9, module version = 22.0.0
[    85.387] Module class: X.Org Video Driver
[    85.387] ABI class: X.Org Video Driver, version 25.2
[    85.389] (II) LoadModule: "modesetting"
[    85.389] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    85.390] (II) Module modesetting: vendor="X.Org Foundation"
[    85.390] compiled for 1.21.1.13, module version = 1.21.1
[    85.390] Module class: X.Org Video Driver
[    85.390] ABI class: X.Org Video Driver, version 25.2
[    85.390] (II) LoadModule: "fbdev"
[    85.390] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so
[    85.415] (II) Module fbdev: vendor="X.Org Foundation"
[    85.415] compiled for 1.21.1.3, module version = 0.5.0
[    85.415] Module class: X.Org Video Driver
[    85.415] ABI class: X.Org Video Driver, version 25.2
[    85.415] (II) RADEON: Driver for ATI/AMD Radeon chipsets:
ATI Radeon Mobility X600 (M24), ATI FireMV 2400,
ATI Radeon Mobility X300 (M24), ATI FireGL M24 GL,
ATI Radeon X600 (RV380), ATI FireGL V3200 (RV380),
ATI Radeon IGP320 (A3), ATI Radeon IGP330/340/350 (A4),
ATI Radeon 9500, ATI Radeon 9600TX, ATI FireGL Z1, ATI Radeon 9800SE,
ATI Radeon 9800, ATI FireGL X2, ATI Radeon 9600, ATI Radeon 9600SE,
ATI Radeon 9600XT, ATI FireGL T2, ATI Radeon 9650, ATI FireGL RV360,
ATI Radeon 7000 IGP (A4+), ATI Radeon 8500 AIW,
ATI Radeon IGP320M (U1), ATI Radeon IGP330M/340M/350M (U2),
ATI Radeon Mobility 7000 IGP, ATI Radeon 9000/PRO, ATI Radeon 9000,
ATI Radeon X800 (R420), ATI Radeon X800PRO (R420),
ATI Radeon X800SE (R420), ATI FireGL X3 (R420),
ATI Radeon Mobility 9800 (M18), ATI Radeon X800 SE (R420),
ATI Radeon X800XT (R420), ATI Radeon X800 VE (R420),
ATI Radeon X850 (R480), ATI Radeon X850 XT (R480),
ATI Radeon X850 SE (R480), ATI Radeon X850 PRO (R480),
ATI Radeon X850 XT PE (R480), ATI Radeon Mobility M7,
ATI Mobility FireGL 7800 M7, ATI Radeon Mobility M6,
ATI FireGL Mobility 9000 (M9), ATI Radeon Mobility 9000 (M9),
ATI Radeon 9700 Pro, ATI Radeon 9700/9500Pro, ATI FireGL X1,
ATI Radeon 9800PRO, ATI Radeon 9800XT,
ATI Radeon Mobility 9600/9700 (M10/M11),
ATI Radeon Mobility 9600 (M10), ATI Radeon Mobility 9600 (M11),
ATI FireGL Mobility T2 (M10), ATI FireGL Mobility T2e (M11),
ATI Radeon, ATI FireGL 8700/8800, ATI Radeon 8500, ATI Radeon 9100,
ATI Radeon 7500, ATI Radeon VE/7000, ATI ES1000,
ATI Radeon Mobility X300 (M22), ATI Radeon Mobility X600 SE (M24C),
ATI FireGL M22 GL, ATI Radeon X800 (R423), ATI Radeon X800PRO (R423),
ATI Radeon X800LE (R423), ATI Radeon X800SE (R423),
ATI Radeon X800 XTP (R430), ATI Radeon X800 XL (R430),
ATI Radeon X800 SE (R430), ATI Radeon X800 (R430),
ATI FireGL V7100 (R423), ATI FireGL V5100 (R423),
ATI FireGL unknown (R423), ATI Mobility FireGL V5000 (M26),
ATI Mobility Radeon X700 XL (M26), ATI Mobility Radeon X700 (M26),
ATI Radeon X550XTX, ATI Radeon 9100 IGP (A5),
ATI Radeon Mobility 9100 IGP (U3), ATI Radeon XPRESS 200,
ATI Radeon XPRESS 200M, ATI Radeon 9250, ATI Radeon 9200,
ATI Radeon 9200SE, ATI FireMV 2200, ATI Radeon X300 (RV370),
ATI Radeon X600 (RV370), ATI Radeon X550 (RV370),
ATI FireGL V3100 (RV370), ATI FireMV 2200 PCIE (RV370),
ATI Radeon Mobility 9200 (M9+), ATI Mobility Radeon X800 XT (M28),
ATI Mobility FireGL V5100 (M28), ATI Mobility Radeon X800 (M28),
ATI Radeon X850, ATI unknown Radeon / FireGL (R480),
ATI Radeon X800XT (R423), ATI FireGL V5000 (RV410),
ATI Radeon X700 XT (RV410), ATI Radeon X700 PRO (RV410),
ATI Radeon X700 SE (RV410), ATI Radeon X700 (RV410),
ATI Radeon X1800, ATI Mobility Radeon X1800 XT,
ATI Mobility Radeon X1800, ATI Mobility FireGL V7200,
ATI FireGL V7200, ATI FireGL V5300, ATI Mobility FireGL V7100,
ATI FireGL V7300, ATI FireGL V7350, ATI Radeon X1600, ATI RV505,
ATI Radeon X1300/X1550, ATI Radeon X1550, ATI M54-GL,
ATI Mobility Radeon X1400, ATI Radeon X1550 64-bit,
ATI Mobility Radeon X1300, ATI Radeon X1300, ATI FireGL V3300,
ATI FireGL V3350, ATI Mobility Radeon X1450,
ATI Mobility Radeon X2300, ATI Mobility Radeon X1350,
ATI FireMV 2250, ATI Radeon X1650, ATI Mobility FireGL V5200,
ATI Mobility Radeon X1600, ATI Radeon X1300 XT/X1600 Pro,
ATI FireGL V3400, ATI Mobility FireGL V5250,
ATI Mobility Radeon X1700, ATI Mobility Radeon X1700 XT,
ATI FireGL V5200, ATI Radeon X2300HD, ATI Mobility Radeon HD 2300,
ATI Radeon X1950, ATI Radeon X1900, ATI AMD Stream Processor,
ATI RV560, ATI Mobility Radeon X1900, ATI Radeon X1950 GT, ATI RV570,
ATI FireGL V7400, ATI Radeon 9100 PRO IGP,
ATI Radeon Mobility 9200 IGP, ATI Radeon X1200, ATI RS740,
ATI RS740M, ATI Radeon HD 2900 XT, ATI Radeon HD 2900 Pro,
ATI Radeon HD 2900 GT, ATI FireGL V8650, ATI FireGL V8600,
ATI FireGL V7600, ATI Radeon 4800 Series, ATI Radeon HD 4870 x2,
ATI Radeon HD 4850 x2, ATI FirePro V8750 (FireGL),
ATI FirePro V7760 (FireGL), ATI Mobility RADEON HD 4850,
ATI Mobility RADEON HD 4850 X2, ATI FirePro RV770,
AMD FireStream 9270, AMD FireStream 9250, ATI FirePro V8700 (FireGL),
ATI Mobility RADEON HD 4870, ATI Mobility RADEON M98,
ATI FirePro M7750, ATI M98, ATI Mobility Radeon HD 4650,
ATI Radeon RV730 (AGP), ATI Mobility Radeon HD 4670,
ATI FirePro M5750, ATI RV730XT [Radeon HD 4670], ATI RADEON E4600,
ATI Radeon HD 4600 Series, ATI RV730 PRO [Radeon HD 4650],
ATI FirePro V7750 (FireGL), ATI FirePro V5700 (FireGL),
ATI FirePro V3750 (FireGL), ATI Mobility Radeon HD 4830,
ATI Mobility Radeon HD 4850, ATI FirePro M7740, ATI RV740,
ATI Radeon HD 4770, ATI Radeon HD 4700 Series, ATI RV610,
ATI Radeon HD 2400 XT, ATI Radeon HD 2400 Pro,
ATI Radeon HD 2400 PRO AGP, ATI FireGL V4000, ATI Radeon HD 2350,
ATI Mobility Radeon HD 2400 XT, ATI Mobility Radeon HD 2400,
ATI RADEON E2400, ATI FireMV 2260, ATI RV670, ATI Radeon HD3870,
ATI Mobility Radeon HD 3850, ATI Radeon HD3850,
ATI Mobility Radeon HD 3850 X2, ATI Mobility Radeon HD 3870,
ATI Mobility Radeon HD 3870 X2, ATI Radeon HD3870 X2,
ATI FireGL V7700, ATI Radeon HD3690, AMD Firestream 9170,
ATI Radeon HD 4550, ATI Radeon RV710, ATI Radeon HD 4350,
ATI Mobility Radeon 4300 Series, ATI Mobility Radeon 4500 Series,
ATI FirePro RG220, ATI Mobility Radeon 4330, ATI RV630,
ATI Mobility Radeon HD 2600, ATI Mobility Radeon HD 2600 XT,
ATI Radeon HD 2600 XT AGP, ATI Radeon HD 2600 Pro AGP,
ATI Radeon HD 2600 XT, ATI Radeon HD 2600 Pro, ATI Gemini RV630,
ATI Gemini Mobility Radeon HD 2600 XT, ATI FireGL V5600,
ATI FireGL V3600, ATI Radeon HD 2600 LE,
ATI Mobility FireGL Graphics Processor, ATI Radeon HD 3470,
ATI Mobility Radeon HD 3430, ATI Mobility Radeon HD 3400 Series,
ATI Radeon HD 3450, ATI Radeon HD 3430, ATI FirePro V3700,
ATI FireMV 2450, ATI Radeon HD 3600 Series, ATI Radeon HD 3650 AGP,
ATI Radeon HD 3600 PRO, ATI Radeon HD 3600 XT,
ATI Mobility Radeon HD 3650, ATI Mobility Radeon HD 3670,
ATI Mobility FireGL V5700, ATI Mobility FireGL V5725,
ATI Radeon HD 3200 Graphics, ATI Radeon 3100 Graphics,
ATI Radeon HD 3300 Graphics, ATI Radeon 3000 Graphics, SUMO, SUMO2,
ATI Radeon HD 4200, ATI Radeon 4100, ATI Mobility Radeon HD 4200,
ATI Mobility Radeon 4100, ATI Radeon HD 4290, ATI Radeon HD 4250,
AMD Radeon HD 6310 Graphics, AMD Radeon HD 6250 Graphics,
AMD Radeon HD 6300 Series Graphics,
AMD Radeon HD 6200 Series Graphics, PALM, CYPRESS,
ATI FirePro (FireGL) Graphics Adapter, AMD Firestream 9370,
AMD Firestream 9350, ATI Radeon HD 5800 Series,
ATI Radeon HD 5900 Series, ATI Mobility Radeon HD 5800 Series,
ATI Radeon HD 5700 Series, ATI Radeon HD 6700 Series,
ATI Mobility Radeon HD 5000 Series, ATI Mobility Radeon HD 5570,
ATI Radeon HD 5670, ATI Radeon HD 5570, ATI Radeon HD 5500 Series,
REDWOOD, ATI Mobility Radeon Graphics, CEDAR, ATI FirePro 2270,
ATI Radeon HD 5450, CAYMAN, AMD Radeon HD 6900 Series,
AMD Radeon HD 6900M Series, Mobility Radeon HD 6000 Series, BARTS,
AMD Radeon HD 6800 Series, AMD Radeon HD 6700 Series, TURKS, CAICOS,
ARUBA, TAHITI, PITCAIRN, VERDE, OLAND, HAINAN, BONAIRE, KABINI,
MULLINS, KAVERI, HAWAII
[    85.420] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    85.420] (II) FBDEV: driver for framebuffer: fbdev
[    85.449] (II) [KMS] Kernel modesetting enabled.
[    85.450] (WW) Falling back to old probe method for modesetting
[    85.451] (WW) Falling back to old probe method for fbdev
[    85.451] (II) Loading sub module "fbdevhw"
[    85.451] (II) LoadModule: "fbdevhw"
[    85.451] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[    85.488] (II) Module fbdevhw: vendor="X.Org Foundation"
[    85.488] compiled for 1.21.1.13, module version = 0.0.2
[    85.488] ABI class: X.Org Video Driver, version 25.2
[    85.495] (II) RADEON(0): Creating default Display subsection in Screen
section
"Default Screen Section" for depth/fbbpp 24/32
[    85.495] (==) RADEON(0): Depth 24, (--) framebuffer bpp 32
[    85.495] (II) RADEON(0): Pixel depth = 24 bits stored in 4 bytes (32
bpp pixmaps)
[    85.495] (==) RADEON(0): Default visual is TrueColor
[    85.495] (==) RADEON(0): RGB weight 888
[    85.495] (II) RADEON(0): Using 8 bits per RGB (8 bit DAC)
[    85.495] (--) RADEON(0): Chipset: "AMD Radeon HD 6900 Series" (ChipID =
0x6718)
[    85.495] (II) Loading sub module "fb"
[    85.495] (II) LoadModule: "fb"
[    85.495] (II) Module "fb" already built-in
[    85.495] (II) Loading sub module "dri2"
[    85.495] (II) LoadModule: "dri2"
[    85.495] (II) Module "dri2" already built-in
[    87.294] (II) Loading sub module "glamoregl"
[    87.294] (II) LoadModule: "glamoregl"
[    87.294] (II) Loading /usr/lib/xorg/modules/libglamoregl.so
[    87.315] (II) Module glamoregl: vendor="X.Org Foundation"
[    87.315] compiled for 1.21.1.13, module version = 1.0.1
[    87.315] ABI class: X.Org ANSI C Emulation, version 0.4
[    87.596] (II) RADEON(0): glamor X acceleration enabled on AMD CAYMAN
(DRM 2.50.0 / 6.10.9-powerpc64, LLVM 18.1.8)
[    87.597] (II) RADEON(0): glamor detected, initialising EGL layer.
[    87.597] (II) RADEON(0): KMS Color Tiling: enabled
[    87.597] (II) RADEON(0): KMS Color Tiling 2D: enabled
[    87.597] (==) RADEON(0): TearFree property default: auto
[    87.597] (II) RADEON(0): KMS Pageflipping: enabled
[    87.627] (II) RADEON(0): Output DisplayPort-0 has no monitor section
[    87.655] (II) RADEON(0): Output DisplayPort-1 has no monitor section
[    87.732] (II) RADEON(0): Output HDMI-0 has no monitor section
[    87.734] (II) RADEON(0): Output DVI-0 has no monitor section
[    87.748] (II) RADEON(0): Output DVI-1 has no monitor section
[    87.779] (II) RADEON(0): EDID for output DisplayPort-0
[    87.807] (II) RADEON(0): EDID for output DisplayPort-1
[    87.884] (II) RADEON(0): EDID for output HDMI-0
[    87.884] (II) RADEON(0): Manufacturer: AUS  Model: 32e0  Serial#: 88609
[    87.884] (II) RADEON(0): Year: 2020  Week: 37
[    87.884] (II) RADEON(0): EDID Version: 1.3
[    87.884] (II) RADEON(0): Digital Display Input
[    87.884] (II) RADEON(0): Max Image Size [cm]: horiz.: 70  vert.: 39
[    87.884] (II) RADEON(0): Gamma: 2.20
[    87.884] (II) RADEON(0): DPMS capabilities: Off
[    87.884] (II) RADEON(0): Supported color encodings: RGB 4:4:4 YCrCb
4:4:4
[    87.884] (II) RADEON(0): First detailed timing is preferred mode
[    87.884] (II) RADEON(0): redX: 0.676 redY: 0.313   greenX: 0.279
greenY: 0.647
[    87.884] (II) RADEON(0): blueX: 0.151 blueY: 0.072   whiteX: 0.313
whiteY: 0.329
[    87.884] (II) RADEON(0): Supported established timings:
[    87.884] (II) RADEON(0): 720x400@70Hz
[    87.884] (II) RADEON(0): 640x480@60Hz
[    87.884] (II) RADEON(0): 640x480@67Hz
[    87.884] (II) RADEON(0): 640x480@72Hz
[    87.884] (II) RADEON(0): 640x480@75Hz
[    87.884] (II) RADEON(0): 800x600@56Hz
[    87.884] (II) RADEON(0): 800x600@60Hz
[    87.884] (II) RADEON(0): 800x600@72Hz
[    87.884] (II) RADEON(0): 800x600@75Hz
[    87.884] (II) RADEON(0): 1024x768@60Hz
[    87.884] (II) RADEON(0): 1024x768@70Hz
[    87.884] (II) RADEON(0): 1024x768@75Hz
[    87.884] (II) RADEON(0): 1280x1024@75Hz
[    87.884] (II) RADEON(0): Manufacturer's mask: 0
[    87.884] (II) RADEON(0): Supported standard timings:
[    87.884] (II) RADEON(0): #0: hsize: 1920  vsize 1080  refresh: 60  vid:
49361
[    87.884] (II) RADEON(0): #1: hsize: 1152  vsize 864  refresh: 75  vid:
20337
[    87.884] (II) RADEON(0): #2: hsize: 1280  vsize 720  refresh: 60  vid:
49281
[    87.885] (II) RADEON(0): #3: hsize: 1280  vsize 960  refresh: 60  vid:
16513
[    87.885] (II) RADEON(0): #4: hsize: 1280  vsize 1024  refresh: 60  vid:
32897
[    87.885] (II) RADEON(0): #5: hsize: 1440  vsize 900  refresh: 60  vid:
149
[    87.885] (II) RADEON(0): #6: hsize: 1680  vsize 1050  refresh: 60  vid:
179
[    87.885] (II) RADEON(0): Supported detailed timing:
[    87.885] (II) RADEON(0): clock: 241.5 MHz   Image Size:  697 x 392 mm
[    87.885] (II) RADEON(0): h_active: 2560  h_sync: 2608  h_sync_end 2640
h_blank_end 2720 h_border: 0
[    87.885] (II) RADEON(0): v_active: 1440  v_sync: 1443  v_sync_end 1448
v_blanking: 1481 v_border: 0
[    87.885] (II) RADEON(0): Supported detailed timing:
[    87.885] (II) RADEON(0): clock: 592.2 MHz   Image Size:  697 x 392 mm
[    87.885] (II) RADEON(0): h_active: 2560  h_sync: 2581  h_sync_end 2613
h_blank_end 2666 h_border: 0
[    87.885] (II) RADEON(0): v_active: 1440  v_sync: 1443  v_sync_end 1448
v_blanking: 1543 v_border: 0
[    87.885] (II) RADEON(0): Ranges: V min: 48 V max: 144 Hz, H min: 30 H
max: 222 kHz, PixClock max 605 MHz
[    87.885] (II) RADEON(0): Monitor name: ASUS VG32VQ1B
[    87.885] (II) RADEON(0): Supported detailed timing:
[    87.885] (II) RADEON(0): clock: 410.5 MHz   Image Size:  697 x 392 mm
[    87.885] (II) RADEON(0): h_active: 2560  h_sync: 2608  h_sync_end 2640
h_blank_end 2720 h_border: 0
[    87.885] (II) RADEON(0): v_active: 1440  v_sync: 1443  v_sync_end 1448
v_blanking: 1510 v_border: 0
[    87.885] (II) RADEON(0): Supported detailed timing:
[    87.885] (II) RADEON(0): clock: 497.8 MHz   Image Size:  697 x 392 mm
[    87.885] (II) RADEON(0): h_active: 2560  h_sync: 2608  h_sync_end 2640
h_blank_end 2720 h_border: 0
[    87.885] (II) RADEON(0): v_active: 1440  v_sync: 1443  v_sync_end 1448
v_blanking: 1525 v_border: 0
[    87.885] (II) RADEON(0): Supported detailed timing:
[    87.885] (II) RADEON(0): clock: 325.1 MHz   Image Size:  697 x 392 mm
[    87.885] (II) RADEON(0): h_active: 1920  h_sync: 1944  h_sync_end 1976
h_blank_end 2056 h_border: 0
[    87.885] (II) RADEON(0): v_active: 1080  v_sync: 1083  v_sync_end 1088
v_blanking: 1098 v_border: 0
[    87.885] (II) RADEON(0): Number of EDID sections to follow: 1
[    87.885] (II) RADEON(0): EDID (in hex):
[    87.885] (II) RADEON(0): 00ffffffffffff0006b3e032215a0100
[    87.885] (II) RADEON(0): 251e0103804627782a1be5ad5047a526
[    87.885] (II) RADEON(0): 125054bfcf00d1c0714f81c081408180
[    87.885] (II) RADEON(0): 9500b3000101565e00a0a0a029503020
[    87.885] (II) RADEON(0): 3500b9882100001e59e7006aa0a06750
[    87.885] (II) RADEON(0): 15203500b9882100001e000000fd0030
[    87.885] (II) RADEON(0): 901ede3c000a202020202020000000fc
[    87.885] (II) RADEON(0): 00415355532056473332565131420127
[    87.885] (II) RADEON(0): 02034871520102031112130f1d1e0e1f
[    87.885] (II) RADEON(0): 044b4c3f406190230917078301000067
[    87.886] (II) RADEON(0): 030c002000303c67d85dc4017888006d
[    87.886] (II) RADEON(0): 1a000002013090e20000000000e305e0
[    87.886] (II) RADEON(0): 00e60607014a4a745aa000a0a0a04650
[    87.886] (II) RADEON(0): 30203500b9882100001a6fc200a0a0a0
[    87.886] (II) RADEON(0): 555030203500b9882100001afa7e8088
[    87.886] (II) RADEON(0): 7038124018203500b9882100001e0082
[    87.886] (--) RADEON(0): HDMI max TMDS frequency 300000KHz
[    87.886] (II) RADEON(0): Printing probed modes for output HDMI-0
[    87.886] (II) RADEON(0): Modeline "1920x1080"x60.0  148.50  1920 2008
2052 2200  1080 1084 1089 1125 -hsync -vsync (67.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1920x1080"x60.0  148.50  1920 2008
2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1920x1080"x50.0  148.50  1920 2448
2492 2640  1080 1084 1089 1125 +hsync +vsync (56.2 kHz e)
[    87.886] (II) RADEON(0): Modeline "1920x1080"x59.9  148.35  1920 2008
2052 2200  1080 1084 1089 1125 +hsync +vsync (67.4 kHz e)
[    87.886] (II) RADEON(0): Modeline "1680x1050"x59.9  119.00  1680 1728
1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x1024"x75.0  135.00  1280 1296
1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x1024"x60.0  108.00  1280 1328
1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1440x900"x59.9   88.75  1440 1488
1520 1600  900 903 909 926 +hsync -vsync (55.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x960"x60.0  108.00  1280 1376
1488 1800  960 961 964 1000 +hsync +vsync (60.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1152x864"x75.0  108.00  1152 1216
1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x720"x60.0   74.25  1280 1390
1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x720"x50.0   74.25  1280 1720
1760 1980  720 725 730 750 +hsync +vsync (37.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1280x720"x59.9   74.18  1280 1390
1430 1650  720 725 730 750 +hsync +vsync (45.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1440x576"x50.0   54.00  1440 1464
1592 1728  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    87.886] (II) RADEON(0): Modeline "1024x768"x75.0   78.75  1024 1040
1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[    87.886] (II) RADEON(0): Modeline "1024x768"x70.1   75.00  1024 1048
1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz e)
[    87.886] (II) RADEON(0): Modeline "1024x768"x60.0   65.00  1024 1048
1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[    87.887] (II) RADEON(0): Modeline "1440x480"x60.0   54.05  1440 1472
1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "1440x480"x59.9   54.00  1440 1472
1596 1716  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "800x600"x72.2   50.00  800 856 976
1040  600 637 643 666 +hsync +vsync (48.1 kHz e)
[    87.887] (II) RADEON(0): Modeline "800x600"x75.0   49.50  800 816 896
1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[    87.887] (II) RADEON(0): Modeline "800x600"x60.3   40.00  800 840 968
1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[    87.887] (II) RADEON(0): Modeline "800x600"x56.2   36.00  800 824 896
1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[    87.887] (II) RADEON(0): Modeline "720x576"x50.0   27.00  720 732 796
864  576 581 586 625 -hsync -vsync (31.2 kHz e)
[    87.887] (II) RADEON(0): Modeline "720x480"x60.0   27.03  720 736 798
858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "720x480"x59.9   27.00  720 736 798
858  480 489 495 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "640x480"x75.0   31.50  640 656 720
840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "640x480"x72.8   31.50  640 664 704
832  480 489 492 520 -hsync -vsync (37.9 kHz e)
[    87.887] (II) RADEON(0): Modeline "640x480"x66.7   30.24  640 704 768
864  480 483 486 525 -hsync -vsync (35.0 kHz e)
[    87.887] (II) RADEON(0): Modeline "640x480"x60.0   25.20  640 656 752
800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "640x480"x59.9   25.18  640 656 752
800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[    87.887] (II) RADEON(0): Modeline "720x400"x70.1   28.32  720 738 846
900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[    87.888] (II) RADEON(0): EDID for output DVI-0
[    87.904] (II) RADEON(0): EDID for output DVI-1
[    87.904] (II) RADEON(0): Output DisplayPort-0 disconnected
[    87.904] (II) RADEON(0): Output DisplayPort-1 disconnected
[    87.904] (II) RADEON(0): Output HDMI-0 connected
[    87.904] (II) RADEON(0): Output DVI-0 disconnected
[    87.904] (II) RADEON(0): Output DVI-1 disconnected
[    87.904] (II) RADEON(0): Using exact sizes for initial modes
[    87.904] (II) RADEON(0): Output HDMI-0 using initial mode 1920x1080 +0+0
[    87.904] (II) RADEON(0): mem size init: gart size :3fdce000 vram size:
s:80000000 visible:f4b4000
[    87.904] (==) RADEON(0): DPI set to (96, 96)
[    87.904] (==) RADEON(0): Using gamma correction (1.0, 1.0, 1.0)
[    87.904] (II) Loading sub module "ramdac"
[    87.904] (II) LoadModule: "ramdac"
[    87.904] (II) Module "ramdac" already built-in
[    87.904] (II) UnloadModule: "modesetting"
[    87.904] (II) Unloading modesetting
[    87.905] (II) UnloadModule: "fbdev"
[    87.905] (II) Unloading fbdev
[    87.905] (II) UnloadSubModule: "fbdevhw"
[    87.905] (II) Unloading fbdevhw
[    87.909] (II) RADEON(0): [DRI2] Setup complete
[    87.909] (II) RADEON(0): [DRI2]   DRI driver: r600
[    87.909] (II) RADEON(0): [DRI2]   VDPAU driver: r600
[    87.910] (II) RADEON(0): Front buffer size: 8100K
[    87.910] (II) RADEON(0): VRAM usage limit set to 218142K
[    87.913] (II) RADEON(0): SYNC extension fences enabled
[    87.915] (II) RADEON(0): Present extension enabled
[    87.915] (==) RADEON(0): DRI3 enabled
[    87.915] (==) RADEON(0): Backing store enabled
[    87.915] (II) RADEON(0): Direct rendering enabled
[    88.137] (II) RADEON(0): Use GLAMOR acceleration.
[    88.137] (II) RADEON(0): Acceleration enabled
[    88.137] (==) RADEON(0): DPMS enabled
[    88.137] (==) RADEON(0): Silken mouse enabled
[    88.137] (II) RADEON(0): Set up textured video (glamor)
[    88.139] (II) RADEON(0): [XvMC] Associated with GLAMOR Textured Video.
[    88.139] (II) RADEON(0): [XvMC] Extension initialized.
[    88.160] (II) Initializing extension Generic Event Extension
[    88.160] (II) Initializing extension SHAPE
[    88.161] (II) Initializing extension MIT-SHM
[    88.161] (II) Initializing extension XInputExtension
[    88.162] (II) Initializing extension XTEST
[    88.163] (II) Initializing extension BIG-REQUESTS
[    88.163] (II) Initializing extension SYNC
[    88.164] (II) Initializing extension XKEYBOARD
[    88.164] (II) Initializing extension XC-MISC
[    88.165] (II) Initializing extension SECURITY
[    88.165] (II) Initializing extension XFIXES
[    88.166] (II) Initializing extension RENDER
[    88.166] (II) Initializing extension RANDR
[    88.167] (II) Initializing extension COMPOSITE
[    88.168] (II) Initializing extension DAMAGE
[    88.168] (II) Initializing extension MIT-SCREEN-SAVER
[    88.169] (II) Initializing extension DOUBLE-BUFFER
[    88.169] (II) Initializing extension RECORD
[    88.170] (II) Initializing extension DPMS
[    88.170] (II) Initializing extension Present
[    88.171] (II) Initializing extension DRI3
[    88.171] (II) Initializing extension X-Resource
[    88.172] (II) Initializing extension XVideo
[    88.172] (II) Initializing extension XVideo-MotionCompensation
[    88.173] (II) Initializing extension SELinux
[    88.173] (II) SELinux: Disabled on system
[    88.173] (II) Initializing extension GLX
[    88.198] (II) AIGLX: Loaded and initialized r600
[    88.198] (II) GLX: Initialized DRI2 GL provider for screen 0
[    88.198] (II) Initializing extension XFree86-VidModeExtension
[    88.198] (II) Initializing extension XFree86-DGA
[    88.199] (II) Initializing extension XFree86-DRI
[    88.199] (II) Initializing extension DRI2
[    88.202] (II) RADEON(0): Setting screen physical size to 508 x 285
[   121.820] (II) config/udev: Adding input device HDA ATI HDMI
HDMI/DP,pcm=3 (/dev/input/event2)
[   121.820] (II) No input driver specified, ignoring this device.
[   121.820] (II) This device may have been added with another device file.
[   121.824] (II) config/udev: Adding input device DELL Dell USB Entry
Keyboard (/dev/input/event0)
[   121.824] (**) DELL Dell USB Entry Keyboard: Applying InputClass
"libinput keyboard catchall"
[   121.824] (II) LoadModule: "libinput"
[   121.824] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so
[   121.832] (II) Module libinput: vendor="X.Org Foundation"
[   121.832] compiled for 1.21.1.11, module version = 1.4.0
[   121.832] Module class: X.Org XInput Driver
[   121.832] ABI class: X.Org XInput driver, version 24.4
[   121.832] (II) Using input driver 'libinput' for 'DELL Dell USB Entry
Keyboard'
[   121.832] (**) DELL Dell USB Entry Keyboard: always reports core events
[   121.832] (**) Option "Device" "/dev/input/event0"
[   121.878] (II) event0  - DELL Dell USB Entry Keyboard: is tagged by udev
as: Keyboard
[   121.879] (II) event0  - DELL Dell USB Entry Keyboard: device is a
keyboard
[   121.879] (II) event0  - DELL Dell USB Entry Keyboard: device removed
[   121.900] (**) Option "config_info"
"udev:/sys/devices/pci0001:00/0001:00:08.0/0001:01:0b.0/usb2/2-1/2-1:1.0/0003:413C:2107.0001/input/input0/event0"
[   121.900] (II) XINPUT: Adding extended input device "DELL Dell USB Entry
Keyboard" (type: KEYBOARD, id 6)
[   121.900] (**) Option "xkb_model" "pc105"
[   121.900] (**) Option "xkb_layout" "br"
[   121.990] (II) event0  - DELL Dell USB Entry Keyboard: is tagged by udev
as: Keyboard
[   121.990] (II) event0  - DELL Dell USB Entry Keyboard: device is a
keyboard
[   121.994] (II) config/udev: Adding input device Dell USB Optical Mouse
(/dev/input/event1)
[   121.994] (**) Dell USB Optical Mouse: Applying InputClass "libinput
pointer catchall"
[   121.994] (II) Using input driver 'libinput' for 'Dell USB Optical Mouse'
[   121.994] (**) Dell USB Optical Mouse: always reports core events
[   121.994] (**) Option "Device" "/dev/input/event1"
[   121.999] (II) event1  - Dell USB Optical Mouse: is tagged by udev as:
Mouse
[   121.999] (II) event1  - Dell USB Optical Mouse: device is a pointer
[   122.000] (II) event1  - Dell USB Optical Mouse: device removed
[   122.040] (II) libinput: Dell USB Optical Mouse: Step value 0 was
provided, libinput Fallback acceleration function is used.
[   122.040] (II) libinput: Dell USB Optical Mouse: Step value 0 was
provided, libinput Fallback acceleration function is used.
[   122.040] (II) libinput: Dell USB Optical Mouse: Step value 0 was
provided, libinput Fallback acceleration function is used.
[   122.040] (**) Option "config_info"
"udev:/sys/devices/pci0001:00/0001:00:08.0/0001:01:0b.0/usb2/2-2/2-2:1.0/0003:046D:C077.0002/input/input1/event1"
[   122.040] (II) XINPUT: Adding extended input device "Dell USB Optical
Mouse" (type: MOUSE, id 7)
[   122.041] (**) Option "AccelerationScheme" "none"
[   122.041] (**) Dell USB Optical Mouse: (accel) selected scheme none/0
[   122.041] (**) Dell USB Optical Mouse: (accel) acceleration factor: 2.000
[   122.041] (**) Dell USB Optical Mouse: (accel) acceleration threshold: 4
[   122.045] (II) event1  - Dell USB Optical Mouse: is tagged by udev as:
Mouse
[   122.046] (II) event1  - Dell USB Optical Mouse: device is a pointer
[   122.049] (II) config/udev: Adding input device Dell USB Optical Mouse
(/dev/input/mouse0)
[   122.049] (II) No input driver specified, ignoring this device.
[   122.049] (II) This device may have been added with another device file.
[   126.179] (II) event0  - DELL Dell USB Entry Keyboard: device removed
[   126.198] (II) event1  - Dell USB Optical Mouse: device removed
[   126.236] (II) AIGLX: Suspending AIGLX clients for VT switch
[   189.994] (II) UnloadModule: "libinput"
[   189.995] (II) UnloadModule: "libinput"
[   190.088] (II) Server terminated successfully (0). Closing log file.

On Thu, Sep 12, 2024 at 7:45 AM luigi burdo <intermedi...@hotmail.com>
wrote:

> Hi John Paul,
> the append for the nvidia card is because on my quad and for what
> understand the  Link Electornics machine too there are two GPUS.
> One is the default Nvidia GPU the other is the 6570.
> If i dont set the append like i wrote before, my quad dont have linux
> running and working on the 6570 with 3D acceleration and only the Nvidia
> running. In this situation i can read the ring errors on dmesg about the
> Radeon and Radeon wont turn on.
> With this append line i tested with success Radeon HD4650, HD5650, HD
> 6570, Radeon R5 2GB and R7 2GB. Some one reported to me have success with
> 6750 too.
> Didnt test nowadays with RadeonSI gpus but some one report it is running
> ok it too.
>
> Ciao Luigi
>
>
>
>
> ------------------------------
> *Da:* John Paul Adrian Glaubitz <glaub...@physik.fu-berlin.de>
> *Inviato:* giovedì 12 settembre 2024 12:14
> *A:* luigi burdo <intermedi...@hotmail.com>
> *Cc:* Link Electronics <link4electron...@gmail.com>;
> debian-powerpc@lists.debian.org <debian-powerpc@lists.debian.org>
> *Oggetto:* Re: R: Need help to make a Radeon HD6970 to work on a G5
>
> Hi Luigi,
>
> On Thu, 2024-09-12 at 09:05 +0000, luigi burdo wrote:
> > this is my really old guide about install linux on PowerMac G5 (quad)
> but the
> > append to linux kernel are working today too.
> > I have on My Quad A Quadro and a 6570 HD <-- for linux.
>
> Why not post the necessary commands to append to the kernel command line
> here?
>
> On a GRUB-based systems, it should be enough to add the following line
>
>         video=offb:off video=radeonfb:off video=nouveaufb:off
> radeon.modeset=1 nouveau.modeset=0
>
> to the variable GRUB_CMDLINE_LINUX_DEFAULT and then run "update-grub".
>
> FWIW, you won't need the nVidia-specific parameters on a system with a
> Radeon card
> and vice versa.
>
> Adrian
>
> --
>  .''`.  John Paul Adrian Glaubitz
> : :' :  Debian Developer
> `. `'   Physicist
>   `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
>

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