UHD resolution not found when logging in, can select after login

[Johan Van de Wauw]

Hi,

After updating from vivid to wily I noticed my screen no longer boots in UHD resolution. I can set the resolution during the session, but on next login it returns back to full hd. This is a regression from vivid, where the resolution worked without problem.

This happens with different window managers.

In cinnamon I get an additional error, which is solved by removing .config/monitors.xml

none of the selected modes were compatible with the possible modes:
Trying modes for CRTC 63
CRTC 63: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 0)
CRTC 63: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 1)
Trying modes for CRTC 64
CRTC 64: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 0)
CRTC 64: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 1)
Trying modes for CRTC 65
CRTC 65: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 0)
CRTC 65: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 1)
Trying modes for CRTC 66
CRTC 66: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 0)
CRTC 66: trying mode 1920x1080@60Hz with output at 3840x2160@60Hz (pass 1)

I'm willing to invest some time in trying to find a solution.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: xorg 1:7.7+7ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-17.21-generic 4.2.3
Uname: Linux 4.2.0-17-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,grid,vpswitch,move,gnomecompat,snap,wall,compiztoolbox,resize,imgpng,regex,place,unitymtgrabhandles,animation,fade,scale,session,expo,workarounds,ezoom,unityshell]
CompositorRunning: None
CurrentDesktop: X-Cinnamon
Date: Thu Nov 12 22:42:35 2015
DistUpgraded: 2015-11-06 20:56:17,323 DEBUG failed to SystemUnLock() (E:Not locked)
DistroCodename: wily
DistroVariant: ubuntu
DkmsStatus: virtualbox, 5.0.4, 4.2.0-17-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:7846]
InstallationDate: Installed on 2011-09-07 (1527 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110907)
MachineType: MSI MS-7846
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-17-generic root=UUID=a303977d-e14d-40d9-a9b7-982b12961f6c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to wily on 2015-11-06 (6 days ago)
dmi.bios.date: 09/24/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V18.1
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H81M-E35 (MS-7846)
dmi.board.vendor: MSI
dmi.board.version: 3.0
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.:bvrV18.1:bd09/24/2013:svnMSI:pnMS-7846:pvr3.0:rvnMSI:rnH81M-E35(MS-7846):rvr3.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: MS-7846
dmi.product.version: 3.0
dmi.sys.vendor: MSI
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: Thu Nov 12 22:41:25 2015
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 USB Receiver KEYBOARD, id 9
 input Logitech USB Receiver KEYBOARD, id 10
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.17.2-1ubuntu9

[Johan Van de Wauw (johanvdw)]

Updating the BIOS does not solve the problem.
Output: of sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
V18.5
07/19/2014
Note that this is a regression when updating from utopic to wily.

[penalvch (penalvch)]

Johan Van de Wauw, if you boot into a kernel from Vivid that was installed when this was working, is this problem still reproducible?

[Johan Van de Wauw (johanvdw)]

The problem still occurs when using a kernel from vivid (3.19.0-35).

If I login, the resolution is not correct. If I fix the resolution everything is fine until I logout (no need to reboot). If I login again, the resolution is bad again.

The available resolutions seem to change from time to time. Sometimes after login I get only 1920x1080 when doing a login, but it drops back to 1024x768 as well, sometimes rescaling to 1920x1080 if I wait a bit longer (the error messag already appeared at that time).
After logging in and waiting approximately 20 seconds I can go to display options and reset my display to the full resolution( 3840x2160).

[Johan Van de Wauw (johanvdw)]

Here is the output of running xrandr just after logging inm only the third time all resolutions are found:

johan@cdh7:~$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 1600mm x 900mm
   1920x1080 60.00*+
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
johan@cdh7:~$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 1600mm x 900mm
   1920x1080 60.00*+
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
johan@cdh7:~$ xrandr
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1600mm x 900mm
   1920x1080 60.00 + 50.00 59.94 30.00 25.00 24.00 29.97 23.98
   4096x2160 24.00 23.98
   3840x2160 30.00* 25.00 24.00 29.97 23.98
   1920x1080i 60.00 50.00 59.94
   1280x1024 60.02
   1360x768 60.02
   1152x864 59.97
   1280x720 60.00 50.00 59.94
   1024x768 60.00
   800x600 60.32
   720x576 50.00
   720x576i 50.00
   720x480 60.00 59.94
   640x480 60.00 59.94
   720x400 70.08
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
johan@cdh7:~$

[Johan Van de Wauw (johanvdw)]

This issue seems to be resolved in Xenial.