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[Bug 1314059] Re: Laptop builtin display is black after wakeup, "could not set the configuration for CRTC 79"

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Dev <scotty@xxxxxxxxxxxx>
Date: Wed, 29 Apr 2015 12:03:45 -0000
Reply-to: Bug 1314059 <1314059@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

<Raises hand> Me too.

Seems to happen almost all of the time. On rare occasions, it will wake
properly.

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https://bugs.launchpad.net/bugs/1314059

Title:
  Laptop builtin display is black after wakeup, "could not set the
  configuration for CRTC 79"

Status in unity-settings-daemon package in Ubuntu:
  New

Bug description:
  After waking up, first display (built in of Thinkpad L412) appears
  black and message box "Could not set the monitor configuration: could
  not set the configuration for CRTC 79" appeared (visible on second
  monitor).

  $ xrandr
  Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
  VGA-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 298mm
     1920x1080      60.0*+
     1680x1050      60.0
     1600x900       60.0
     1280x1024      75.0     60.0
     1280x800       59.8
     1152x864       75.0
     1280x720       60.0
     1024x768       75.1     60.0
     832x624        74.6
     800x600        75.0     60.3
     640x480        75.0     60.0
     720x400        70.1
  LVDS connected (normal left inverted right x axis y axis)
     1366x768       60.0 +   50.0
     1280x720       59.9
     1152x768       59.8
     1024x768       59.9
     800x600        59.9
     848x480        59.7
     720x480        59.7
     640x480        59.4
  DisplayPort-0 disconnected (normal left inverted right x axis y axis)
  DisplayPort-1 disconnected (normal left inverted right x axis y axis)

  
  $ sudo lshw -c video
    *-display               
         description: VGA compatible controller
         product: RV710/M92 [Mobility Radeon HD 4530/4570/545v]
         vendor: Advanced Micro Devices, Inc. [AMD/ATI]
         physical id: 0
         bus info: pci@0000:01:00.0
         version: 00
         width: 32 bits
         clock: 33MHz
         capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
         configuration: driver=radeon latency=0
         resources: irq:43 memory:d0000000-dfffffff ioport:2000(size=256) memory:cfef0000-cfefffff memory:cfe00000-cfe1ffff

  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: unity-settings-daemon 14.04.0+14.04.20140414-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Apr 29 11:22:20 2014
  ExecutablePath: /usr/lib/unity-settings-daemon/unity-settings-daemon
  InstallationDate: Installed on 2013-10-23 (187 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  SourcePackage: unity-settings-daemon
  UpgradeStatus: Upgraded to trusty on 2014-04-18 (10 days ago)

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