Issue with Multiple Displays (AMD Cards / 16.04)

[Tom Winter]

I have two identical AMD Cards and whichever card I name in the BIOS as primary correctly displays the desktop and allows me to orient the desktop directly (landscape, portrait, etc).

The secondary card will not allow the settings to be changed in anyway. Performance is not ideal although the displays on the secondary card do work and applications will run on them.

While I am a relatively new user to Ubuntu I am quite willing to help provide further information for de-bugging purposes.

Please note that I had the same issue in 14.04 even after installing the FGLRX drivers.

I appreciate any help that can be provided.

LSPCI Info:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XTX [Radeon HD 8490 / R5 235X OEM] (prog-if 00 [VGA controller])
 Subsystem: Dell Caicos XTX [Radeon HD 8490 / R5 235X OEM]
 Flags: bus master, fast devsel, latency 0, IRQ 32
 Memory at e0000000 (64-bit, prefetchable) [size=256M]
 Memory at f7d20000 (64-bit, non-prefetchable) [size=128K]
 I/O ports at e000 [size=256]
 Expansion ROM at f7d00000 [disabled] [size=128K]
 Capabilities: <access denied>
 Kernel driver in use: radeon
 Kernel modules: radeon

01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Caicos HDMI Audio [Radeon HD 6400 Series]
 Subsystem: Dell Caicos HDMI Audio [Radeon HD 6400 Series]
 Flags: bus master, fast devsel, latency 0, IRQ 37
 Memory at f7d40000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel

03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XTX [Radeon HD 8490 / R5 235X OEM] (prog-if 00 [VGA controller])
 Subsystem: Dell Caicos XTX [Radeon HD 8490 / R5 235X OEM]
 Flags: bus master, fast devsel, latency 0, IRQ 34
 Memory at d0000000 (64-bit, prefetchable) [size=256M]
 Memory at f7c20000 (64-bit, non-prefetchable) [size=128K]
 I/O ports at d000 [size=256]
 Expansion ROM at f7c00000 [disabled] [size=128K]
 Capabilities: <access denied>
 Kernel driver in use: radeon
 Kernel modules: radeon

03:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Caicos HDMI Audio [Radeon HD 6400 Series]
 Subsystem: Dell Caicos HDMI Audio [Radeon HD 6400 Series]
 Flags: bus master, fast devsel, latency 0, IRQ 38
 Memory at f7c40000 (64-bit, non-prefetchable) [size=16K]
 Capabilities: <access denied>
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue May 17 19:57:19 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
InstallationDate: Installed on 2016-05-05 (12 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. OptiPlex 9020
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic root=UUID=baa78b6c-e47e-4119-af45-1c2ee756768a ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/05/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0XCR8D
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd12/05/2013:svnDellInc.:pnOptiPlex9020:pvr01:rvnDellInc.:rn0XCR8D:rvrA03:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 9020
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Tue May 17 19:33:26 2016
xserver.configfile: default
xserver.devices:
 input Power Button KEYBOARD, id 6
 input Video Bus KEYBOARD, id 7
 input Power Button KEYBOARD, id 8
 input Logitech K520 KEYBOARD, id 9
 input Logitech M310/M310t MOUSE, id 10
xserver.errors: RADEON(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.3-1ubuntu2
xserver.video_driver: radeon

[Paul White (paulw2u)]

We are sorry that we do not always have the capacity to review all reported bugs in a timely manner. You reported this bug some time ago and there have been many changes in Ubuntu since that time.

Ubuntu 16.04 (xenial) reached end-of-standard-support on April 29, 2021.

Do you still see a problem related to the one that you reported when using a currently supported version of Ubuntu? Please let us know if you do otherwise this report can be left to expire in approximately 60 days time.

Thank you for helping make Ubuntu better.

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]