[Radeon HD 7950] Unable to set resolution higher than 1024x768

[iceboy]

I'm using the latest development version of xenial. My graphics card is AMD HD7950 and I use an mini-DP to DP converter to connect it to an Acer XB240H monitor. The system works well in Windows 7.

While using the open source radeon driver, the system was only able to detect resolution up to 1024x768:

$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 16384 x 16384
DisplayPort-0 disconnected (normal left inverted right x axis y axis)
DisplayPort-1 connected primary 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768 60.00*
   800x600 60.32 56.25
   848x480 60.00
   640x480 59.94
HDMI-0 disconnected (normal left inverted right x axis y axis)
DVI-0 disconnected (normal left inverted right x axis y axis)

$ dmesg | grep drm
[ 0.615419] [drm] Initialized drm 1.1.0 20060810
[ 0.630977] [drm] radeon kernel modesetting enabled.
[ 0.633712] fb: switching to radeondrmfb from VESA VGA
[ 0.633863] [drm] initializing kernel modesetting (TAHITI 0x1002:0x679A 0x1682:0x3221).
[ 0.633870] [drm] register mmio base: 0xF7E00000
[ 0.633870] [drm] register mmio size: 262144
[ 0.633935] [drm] Changing default dispclk from 500Mhz to 600Mhz
[ 0.633942] [drm] Detected VRAM RAM=3072M, BAR=256M
[ 0.633943] [drm] RAM width 384bits DDR
[ 0.633980] [drm] radeon: 3072M of VRAM memory ready
[ 0.633980] [drm] radeon: 2048M of GTT memory ready.
[ 0.633985] [drm] Loading tahiti Microcode
[ 0.634037] [drm] Internal thermal controller with fan control
[ 0.634064] [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
[ 0.638427] [drm] radeon: dpm initialized
[ 0.639773] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
[ 0.639776] [drm] GART: num cpu pages 524288, num gpu pages 524288
[ 0.640486] [drm] probing gen 2 caps for device 8086:c01 = 261ad03/e
[ 0.640489] [drm] PCIE gen 3 link speeds already enabled
[ 0.655393] [drm] PCIE GART of 2048M enabled (table at 0x00000000002E8000).
[ 0.675799] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 0.675800] [drm] Driver supports precise vblank timestamp query.
[ 0.675874] [drm] radeon: irq initialized.
[ 0.816685] [drm] ring test on 0 succeeded in 1 usecs
[ 0.816689] [drm] ring test on 1 succeeded in 1 usecs
[ 0.816692] [drm] ring test on 2 succeeded in 1 usecs
[ 0.816697] [drm] ring test on 3 succeeded in 3 usecs
[ 0.816701] [drm] ring test on 4 succeeded in 2 usecs
[ 1.002289] [drm] ring test on 5 succeeded in 1 usecs
[ 1.002294] [drm] UVD initialized successfully.
[ 1.111494] [drm] ring test on 6 succeeded in 21 usecs
[ 1.111505] [drm] ring test on 7 succeeded in 4 usecs
[ 1.111505] [drm] VCE initialized successfully.
[ 1.111627] [drm] ib test on ring 0 succeeded in 0 usecs
[ 1.111648] [drm] ib test on ring 1 succeeded in 0 usecs
[ 1.111673] [drm] ib test on ring 2 succeeded in 0 usecs
[ 1.111688] [drm] ib test on ring 3 succeeded in 0 usecs
[ 1.111702] [drm] ib test on ring 4 succeeded in 0 usecs
[ 1.780603] [drm] ib test on ring 5 succeeded
[ 2.280602] [drm] ib test on ring 6 succeeded
[ 2.780592] [drm] ib test on ring 7 succeeded
[ 2.781353] [drm] Radeon Display Connectors
[ 2.781354] [drm] Connector 0:
[ 2.781354] [drm] DP-1
[ 2.781355] [drm] HPD5
[ 2.781356] [drm] DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c
[ 2.781357] [drm] Encoders:
[ 2.781357] [drm] DFP1: INTERNAL_UNIPHY2
[ 2.781358] [drm] Connector 1:
[ 2.781358] [drm] DP-2
[ 2.781359] [drm] HPD4
[ 2.781360] [drm] DDC: 0x6540 0x6540 0x6544 0x6544 0x6548 0x6548 0x654c 0x654c
[ 2.781360] [drm] Encoders:
[ 2.781361] [drm] DFP2: INTERNAL_UNIPHY2
[ 2.781361] [drm] Connector 2:
[ 2.781362] [drm] HDMI-A-1
[ 2.781362] [drm] HPD1
[ 2.781363] [drm] DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c
[ 2.781363] [drm] Encoders:
[ 2.781364] [drm] DFP3: INTERNAL_UNIPHY1
[ 2.781364] [drm] Connector 3:
[ 2.781365] [drm] DVI-I-1
[ 2.781365] [drm] HPD3
[ 2.781366] [drm] DDC: 0x6580 0x6580 0x6584 0x6584 0x6588 0x6588 0x658c 0x658c
[ 2.781367] [drm] Encoders:
[ 2.781367] [drm] DFP4: INTERNAL_UNIPHY
[ 2.781368] [drm] CRT1: INTERNAL_KLDSCP_DAC1
[ 2.821395] [drm] fb mappable at 0xE06EA000
[ 2.821396] [drm] vram apper at 0xE0000000
[ 2.821397] [drm] size 3145728
[ 2.821397] [drm] fb depth is 24
[ 2.821398] [drm] pitch is 4096
[ 2.821451] fbcon: radeondrmfb (fb0) is primary device
[ 2.821497] radeon 0000:01:00.0: fb0: radeondrmfb frame buffer device
[ 2.832610] [drm] Initialized radeon 2.43.0 20080528 for 0000:01:00.0 on minor 0
[ 3.888602] [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed: 5 tries
[ 3.888612] [drm:radeon_dp_link_train [radeon]] *ERROR* channel eq failed

WORKAROUND: Manually add resolution:
$ xrandr --newmode 1920x1080 148.5 1920 2008 2052 2200 1080 1089 1095 1125 +hsync +vsync
$ xrandr --addmode DisplayPort-1 1920x1080
$ xrandr --output DisplayPort-1 --mode 1920x1080

---
.tmp.unity.support.test.0:

ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: iceboy 1728 F.... pulseaudio
 /dev/snd/controlC1: iceboy 1728 F.... pulseaudio
BootLog:
 [ OK ] Started LSB: Speech Dispatcher.
 [ OK ] Started LSB: Set the CPU Frequency Scaling governor to "ondemand".
 [ OK ] Started LSB: automatic crash report generation.
 [ OK ] Started Modem Manager.
 [ OK ] Started LSB: daemon to balance interrupts for SMP systems.
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
DistUpgraded: Fresh install
DistroCodename: xenial
DistroRelease: Ubuntu 16.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [1002:679a] (prog-if 00 [VGA controller])
   Subsystem: XFX Pine Group Inc. Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280] [1682:3221]
InstallationDate: Installed on 2016-01-16 (62 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160116)
IwConfig:
 eno1 no wireless extensions.

 lo no wireless extensions.
MachineType: ASUS All Series
Package: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
PackageArchitecture: amd64
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-13-generic root=UUID=fe79ce94-1226-4597-b9c6-6ae80248ea5a ro rootflags=subvol=@ quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-13-generic N/A
 linux-backports-modules-4.4.0-13-generic N/A
 linux-firmware 1.156
RfKill:

Tags: xenial xenial ubuntu regression reproducible has-workaround compiz-0.9
Uname: Linux 4.4.0-13-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/25/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2801
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: MAXIMUS VII HERO
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2801:bd06/25/2015:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnMAXIMUSVIIHERO:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: All Series
dmi.product.version: System Version
dmi.sys.vendor: ASUS
version.compiz: compiz 1:0.9.12.2+16.04.20160318-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.1.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.1.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.1-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.6.1-1ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160218-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2

[iceboy (spad)]

Manually adding resolution works.

$ xrandr --newmode 1920x1080 148.5 1920 2008 2052 2200 1080 1089 1095 1125 +hsync +vsync
$ xrandr --addmode DisplayPort-1 1920x1080
$ xrandr --output DisplayPort-1 --mode 1920x1080

Seems like the problem is related to detecting display modes.

Note that the display was able to handle refresh rate up to 144Hz.

[iceboy (spad)]

$ cat /var/log/Xorg.0.log | grep RADEON
[ 565.640] (II) RADEON: Driver for ATI Radeon chipsets:
 ATI Mobility RADEON HD 4850, ATI Mobility RADEON HD 4850 X2,
 ATI Mobility RADEON HD 4870, ATI Mobility RADEON M98,
 ATI Mobility RADEON HD 4870, ATI Radeon 4800 Series,
 ATI RV730XT [Radeon HD 4670], ATI RADEON E4600,
 ATI Mobility Radeon HD 2400, ATI RADEON E2400, ATI RV610,
[ 565.644] (II) RADEON(0): Creating default Display subsection in Screen section
[ 565.644] (==) RADEON(0): Depth 24, (--) framebuffer bpp 32
[ 565.644] (II) RADEON(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps)
[ 565.644] (==) RADEON(0): Default visual is TrueColor
[ 565.644] (==) RADEON(0): RGB weight 888
[ 565.644] (II) RADEON(0): Using 8 bits per RGB (8 bit DAC)
[ 565.644] (--) RADEON(0): Chipset: "TAHITI" (ChipID = 0x679a)
[ 565.656] (II) RADEON(0): glamor detected, initialising EGL layer.
[ 565.656] (II) RADEON(0): KMS Color Tiling: enabled
[ 565.656] (II) RADEON(0): KMS Color Tiling 2D: enabled
[ 565.656] (II) RADEON(0): KMS Pageflipping: enabled
[ 565.656] (II) RADEON(0): SwapBuffers wait for vsync: enabled
[ 565.664] (II) RADEON(0): Output DisplayPort-0 has no monitor section
[ 565.682] (II) RADEON(0): Output DisplayPort-1 has no monitor section
[ 565.683] (II) RADEON(0): Output HDMI-0 has no monitor section
[ 565.696] (II) RADEON(0): Output DVI-0 has no monitor section
[ 565.704] (II) RADEON(0): EDID for output DisplayPort-0
[ 565.722] (II) RADEON(0): EDID for output DisplayPort-1
[ 565.722] (II) RADEON(0): Printing probed modes for output DisplayPort-1
[ 565.722] (II) RADEON(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e)
[ 565.722] (II) RADEON(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e)
[ 565.722] (II) RADEON(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e)
[ 565.722] (II) RADEON(0): Modeline "848x480"x60.0 33.75 848 864 976 1088 480 486 494 517 +hsync +vsync (31.0 kHz e)
[ 565.722] (II) RADEON(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e)
[ 565.723] (II) RADEON(0): EDID for output HDMI-0
[ 565.736] (II) RADEON(0): EDID for output DVI-0
[ 565.736] (II) RADEON(0): Output DisplayPort-0 disconnected
[ 565.736] (II) RADEON(0): Output DisplayPort-1 connected
[ 565.736] (II) RADEON(0): Output HDMI-0 disconnected
[ 565.736] (II) RADEON(0): Output DVI-0 disconnected
[ 565.736] (II) RADEON(0): Using exact sizes for initial modes
[ 565.736] (II) RADEON(0): Output DisplayPort-1 using initial mode 1024x768 +0+0
[ 565.736] (II) RADEON(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[ 565.736] (II) RADEON(0): mem size init: gart size :7fbcc000 vram size: s:c0000000 visible:beda6000
[ 565.736] (==) RADEON(0): DPI set to (96, 96)
[ 565.736] (II) RADEON(0): [DRI2] Setup complete
[ 565.736] (II) RADEON(0): [DRI2] DRI driver: radeonsi
[ 565.736] (II) RADEON(0): [DRI2] VDPAU driver: radeonsi
[ 565.736] (II) RADEON(0): Front buffer size: 3072K
[ 565.736] (II...

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1552693

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[iceboy (spad)]

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[iceboy (spad)]

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[iceboy (spad)]

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[iceboy (spad)]

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[iceboy (spad)]

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[iceboy (spad)]

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[iceboy (spad)]

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[penalvch (penalvch)]

iceboy, in order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Also, you don't need to apport-collect further unless specifically requested to do so.

Once testing of the latest upstream kernel is complete, please mark this report Status Confirmed. Please let us know your results.

Thank you for your understanding.

[Pekka Hämäläinen (pekka-hamalainen)]

This bug affects also me. I just upgraded from 14.04 and 16.04 (4.4.0-28-generic #47-Ubuntu SMP kernel) radeon driver offers only 1024 x 768 resolution. Hw is adm redwood xt (hd 5670) which can do 1920 x 1080 at least.

I can run series of tests for you if needed.

[Launchpad Janitor (janitor)]

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

[Marius Helmeseanu (kr3at0r)]

ProblemType: Bug
ApportVersion: 2.20.10-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: hlm 1445 F.... pulseaudio
 /dev/snd/controlC1: hlm 1445 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 19.04
InstallationDate: Installed on 2019-05-19 (0 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
IwConfig:
 enp0s25 no wireless extensions.

 enp3s0 no wireless extensions.

 lo no wireless extensions.
MachineType: Dell Inc. OptiPlex 755
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-15-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.0.0-15.16-generic 5.0.6
RelatedPackageVersions:
 linux-restricted-modules-5.0.0-15-generic N/A
 linux-backports-modules-5.0.0-15-generic N/A
 linux-firmware 1.178.1
RfKill:

Tags: disco
Uname: Linux 5.0.0-15-generic x86_64
UpgradeStatus: Upgraded to disco on 2019-05-19 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 06/11/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A22
dmi.board.name: 0PU052
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA22:bd06/11/2012:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0PU052:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.

[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[Marius Helmeseanu (kr3at0r)]

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[penalvch (penalvch)]

Marius Helmeseanu, it is most helpful if you use the computer the problem is reproducible with and file a new report with Ubuntu by first ensuring the package xdiagnose is installed, and click the Yes button for attaching additional debugging information after running the following from a terminal:
ubuntu-bug xorg

Also, please feel free to subscribe me to it.

[penalvch (penalvch)]

iceboy, to confirm this is resolved in Ubuntu, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?