kernel-packages team mailing list archive

[Muriel <1575651@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Once my session has been locked and the screen off, Xserver stops responding to input ( I can still move the cursor). I can re-activate it by typing in a tty "xset dpms force on".
  If I just lock the screen all works fine.
  If I just turn off the monitor (xset dpms force off) all works fine.
  
  The same system (kubuntu 16.04 64bit) on different hardware (nvidia) has
  no problem.
  
- Symptoms:
- After waking the screen from power saving/screensaver, the primary display wakes but X stops responding to input (the mouse cursor can still move, but clicking has no effect). Secondary display does not wake.
- No errors in dmesg
- 
- Frequency/conditions:
- Occurs almost every time the screen enters power saving + locked (possibly DPMS issue?)
- 
- VGA: Advanced Micro Devices, Inc. [AMD/ATI] Kabini [Radeon HD 8400 / R3
- Series] (APU AMD Athlon 5350)
+ The issue does NOT occur when running this kernel:
+ - linux-image-4.6.0-996-generic (4.6.0-996.201604262201)
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xserver-xorg-video-radeon 1:7.7.0-1
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Wed Apr 27 14:00:52 2016
  InstallationDate: Installed on 2016-04-27 (0 days ago)
  InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: No upgrade log present (probably fresh install)

** Package changed: xserver-xorg-video-ati (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1575651

Title:
  X stops responding to input on power saving mode

Status in linux package in Ubuntu:
  New

Bug description:
  Once my session has been locked and the screen off, Xserver stops responding to input ( I can still move the cursor). I can re-activate it by typing in a tty "xset dpms force on".
  If I just lock the screen all works fine.
  If I just turn off the monitor (xset dpms force off) all works fine.

  The same system (kubuntu 16.04 64bit) on different hardware (nvidia)
  has no problem.

  The issue does NOT occur when running this kernel:
  - linux-image-4.6.0-996-generic (4.6.0-996.201604262201)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: xserver-xorg-video-radeon 1:7.7.0-1
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Wed Apr 27 14:00:52 2016
  InstallationDate: Installed on 2016-04-27 (0 days ago)
  InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: No upgrade log present (probably fresh install)

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