Comment 28 for bug 1509135

Hi Christopher:

I ran apport-collect for you, as described in your message below.

I've tried a number of things to turn the discrete Radeon unit off.

I'm currently trying to use "radeon.dpm=0" in the kernel, followed by

echo profile > /sys/class/drm/card0/device/power_method
echo profile > /sys/class/drm/card1/device/power_method

echo low > /sys/class/drm/card0/device/power_profile
echo low > /sys/class/drm/card1/device/power_profile

echo IGD > /sys/kernel/debug/vgaswitcheroo/switch
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

Previously, I've tried "radeon.dpm=1" in the kernel, followed by

echo battery > /sys/class/drm/card0/device/power_dpm_state
echo battery > /sys/class/drm/card1/device/power_dpm_state

I'm willing to try other combinations if can suggest some.

Thanks for your help.

Henry Baker
Santa Barbara, CA

At 03:14 PM 10/25/2015, Christopher M. Penalver wrote:
>foobar, also, could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:
>apport-collect -p xorg 1509135
>
>Please ensure you have the package xdiagnose installed, and that you
>click the Yes button for attaching additional debugging information.
>
>When reporting xorg related bugs in the future, please do so via the
>above method. You can learn more about this functionality at
>https://wiki.ubuntu.com/ReportingBugs.
>
>--
>You received this bug notification because you are subscribed to the bug
>report.
>https://bugs.launchpad.net/bugs/1509135
>
>Title:
> Discrete Radeon graphics unit won't stay *off*
>
>Status in xorg package in Ubuntu:
> Incomplete
>
>Bug description:
> After upgrading from Ubuntu 15.04 to 15.10, the AMD discrete card
> keeps coming on.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 15.10
> Package: ubuntu-release-upgrader-core 1:15.10.14
> ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
> Uname: Linux 4.2.0-16-generic x86_64
> ApportVersion: 2.19.1-0ubuntu3
> Architecture: amd64
> CrashDB: ubuntu
> CurrentDesktop: Unity
> Date: Thu Oct 22 16:30:42 2015
> InstallationDate: Installed on 2015-07-25 (89 days ago)
> InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
> PackageArchitecture: all
> SourcePackage: ubuntu-release-upgrader
> Symptom: release-upgrade
> UpgradeStatus: Upgraded to wily on 2015-10-22 (0 days ago)
> VarLogDistupgradeTermlog:
>
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