Adrian, it wouldn't hurt to mention in the upstream report that you
tested a much more recent version of the radeon drivers, and fglrx works
fine.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New => Triaged
** Description changed:
The kernel was launched with the options: radeon.mst=1 radeon.dpm=1 (however,
I noticed identical symptoms for radeon.mst enabled only)
The setup in total includes 3 screens: laptop's one + 2 times Dell U2715H
(connected by Display Port daisy chain)
I get Ubuntu login GUI on two Dell screens, laptop's screens got off. The
Dell screens are properly detected as separate: I can move mouse from one
screen to another. Image on the last Dell screen is defected (blur) as in the
attached picture. After login all screens switch to power safe mode.
Afterwards, I'm able to switch to CLI (ALT+CTRL+F2) but screens is doubled on
two Dells (they are treated as one), laptop's screen remains off.
- In dmesg I found only information about error:
- [drm:radeon_mst_encoder_dpms [radeon]] *ERROR* DPMS OFF 0
+ WORKAROUND: Use fglrx.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xserver-xorg-video-radeon 1:7.5.0+git20150819-0ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
Date: Mon Oct 26 09:29:05 2015
DistUpgraded: Fresh install
DistroCodename: wily
DistroVariant: ubuntu
DkmsStatus:
openafs, 1.6.14, 4.2.0-16-generic, x86_64: installed
vboxhost, 5.0.8, 4.2.0-16-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Venus XT [Radeon HD 8870M / R9
M270X/M370X] [1002:6821] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:2254]
InstallationDate: Installed on 2015-04-02 (206 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Hewlett-Packard HP ZBook 15 G2
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-16-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro radeon.dpm=1 radeon.mst=1
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/23/2015
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: M70 Ver. 01.12
dmi.board.name: 2253
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 03.10
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvrM70Ver.01.07:bd02/26/2015:svnHewlett-Packard:pnHPZBook15G2:pvrA3008CD10003:rvnHewlett-Packard:rn2253:rvrKBCVersion03.10:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ZBook 15 G2
dmi.product.version: A3008CD10003
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.2+15.10.20151015-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.64-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati
1:7.5.0+git20150819-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20150808-0ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.11-1ubuntu3
xserver.bootTime: Mon Oct 26 09:25:26 2015
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.17.2-1ubuntu9
xserver.video_driver: radeon
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https://bugs.launchpad.net/bugs/1509997
Title:
1002:6821 Graphical issues when radeon MST enabled
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