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[Bug 1310225] Re: Radeon driver disregards power_profile configuration using STR or changing screen resolution

 

Seems to work since the upgrade to 14.10.

** Changed in: xserver-xorg-video-ati (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1310225

Title:
  Radeon driver disregards power_profile configuration using STR or
  changing screen resolution

Status in “xserver-xorg-video-ati” package in Ubuntu:
  Fix Released

Bug description:
  To keep temperature low and the fan off I use the power_profile mid
  instead of high. This has worked flawlessly for a long time. Since
  last week however the power_profile falls back to high when  I use
  Suspend to Ram or when I change the resolution to adjust for an
  external screen using arandr.

  before:
  sudo cat /sys/kernel/debug/dri/0/radeon_pm_info

  default engine clock: 680000 kHz
  current engine clock: 297000 kHz
  default memory clock: 800000 kHz
  current memory clock: 405000 kHz
  voltage: 900 mV
  PCIE lanes: 16

  after:
  sudo cat /sys/kernel/debug/dri/0/radeon_pm_info
  default engine clock: 680000 kHz
  current engine clock: 675000 kHz
  default memory clock: 800000 kHz
  current memory clock: 792000 kHz
  voltage: 1200 mV
  PCIE lanes: 16

  Everytime this happens I now have to manually change power_profile via
  echo mid | sudo tee /sys/class/drm/card0/device/power_profile mid

  
  For permant change I put these 2 lines in /etc/rc.local:
  echo profile > /sys/class/drm/card0/device/power_method
  echo mid > /sys/class/drm/card0/device/power_profile

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: xserver-xorg-video-radeon 1:7.2.0-0ubuntu10
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  Date: Sun Apr 20 11:44:10 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2013-11-26 (144 days ago)
  InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
  MarkForUpload: True
  SourcePackage: xserver-xorg-video-ati
  UpgradeStatus: No upgrade log present (probably fresh install)

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