Public bug reported:
On Karmic the X-Server falls back to VESA mode. It has worked some
updates before.
Xorg.0.log says:
[...]
(--) PCI:*(0...@0:2:0) Intel Corporation Mobile 945GM/GMS, 943/940GML Express
Integrated Graphics Controller rev 3, Mem @ 0xb0080000/524288,
0xc0000000/268435456, 0xb0040000/262144, I/O @ 0x00001800/8
(II) Open ACPI successful (/var/run/acpid.socket)
(II) System resource ranges:
[0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[1] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[2] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[3] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[4] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[5] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[...]
(II) LoadModule: "dri2"
(II) Loading /usr/lib/xorg/modules/extensions//libdri2.so
(II) Module dri2: vendor="X.Org Foundation"
compiled for 1.6.0, module version = 1.0.0
ABI class: X.Org Server Extension, version 2.0
(II) Loading extension DRI2
(II) Scanning /usr/share/xserver-xorg/pci directory for additional PCI ID's
supported by the drivers
(II) No matches found for this device in /usr/share/xserver-xorg/pci
(==) Registering 'vesa' as fallback
(==) Matched vesa for the autoconfigured driver
(==) Assigned the driver to the xf86ConfigLayout
(II) LoadModule: "vesa"
(II) Loading /usr/lib/xorg/modules/drivers//vesa_drv.so
(II) Module vesa: vendor="X.Org Foundation"
compiled for 1.6.0, module version = 2.2.0
Module class: X.Org Video Driver
ABI class: X.Org Video Driver, version 5.0
(II) VESA: driver for VESA chipsets: vesa
(II) Primary Device is: PCI 0...@00:02:0
(II) resource ranges after probing:
[0] -1 0 0xffffffff - 0xffffffff (0x1) MX[B]
[1] -1 0 0x000f0000 - 0x000fffff (0x10000) MX[B]
[2] -1 0 0x000c0000 - 0x000effff (0x30000) MX[B]
[3] -1 0 0x00000000 - 0x0009ffff (0xa0000) MX[B]
[4] -1 0 0x0000ffff - 0x0000ffff (0x1) IX[B]
[5] -1 0 0x00000000 - 0x00000000 (0x1) IX[B]
[...]
(II) VESA(0): initializing int10
(II) VESA(0): Bad V_BIOS checksum
(II) VESA(0): Primary V_BIOS segment is: 0xc000
(II) VESA(0): VESA BIOS detected
(II) VESA(0): VESA VBE Version 3.0
(II) VESA(0): VESA VBE Total Mem: 7872 kB
(II) VESA(0): VESA VBE OEM: Intel(r) 82945GM Chipset Family Graphics Chip
Accelerated VGA BIOS
(II) VESA(0): VESA VBE OEM Software Rev: 1.0
(II) VESA(0): VESA VBE OEM Vendor: Intel Corporation
(II) VESA(0): VESA VBE OEM Product: Intel(r) 82945GM Chipset Family Graphics
Controller
(II) VESA(0): VESA VBE OEM Product Rev: Hardware Version 0.0
(II) VESA(0): Creating default Display subsection in Screen section
"Default Screen" for depth/fbbpp 24/32
(==) VESA(0): Depth 24, (--) framebuffer bpp 32
[...]
** Affects: xserver-xorg-video-intel (Ubuntu)
Importance: Undecided
Status: New
** Tags: 945gm intel karmic x.org xorg
** Tags added: 945gm intel karmic x.org xorg
--
Xorg falls back to VESA on intel hardware
https://bugs.launchpad.net/bugs/379504
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