kernel-packages team mailing list archive

[Matt <1355044@xxxxxxxxxxxxxxxxxx>]

Changelog for that lists these:

drm/radeon: only apply bapm changes for AC power on ARUBA
drm/radeon: enable bapm by default on KV/KB
drm/radeon: enable bapm by default on desktop TN/RL boards

Only the last one seems to be the only one to apply to Trinity APUs. The diff is here and it is the likely fix, however it shouldn't just be applied because it may cause stability issues with other non-MSI computers:
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.16.y&id=0c78a44964db3d483b0c09a8236e0fe123aa9cfc

The follow up enables `bapm` only on MSI systems because he states other systems have stability issues when `bapm` is enabled:
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.16.y&id=730a336c33a3398d65896e8ee3ef9f5679fe30a9

If you have to bisect completely, this might let you only test 2
commits. Hopefully, the commit before my first link will fail and the
first link's commit will work properly. Then the proper fix would be to
apply both patches.

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https://bugs.launchpad.net/bugs/1355044

Title:
  [MSI A88XM-E35] Ubuntu 14.04.1 constant reboot without nomodeset

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I needed to add nomodeset for initial install to prevent constant
  reboot from live usb. When done and trying to remove the nomodeset
  option out of /etc/default/grub, the constant reboot comes back, so I
  had to start in recovery to add nomodeset again.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-32-generic 3.13.0-32.57
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  fab        3896 F.... pulseaudio
   /dev/snd/controlC0:  fab        3896 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Aug 11 09:41:49 2014
  HibernationDevice: RESUME=UUID=66392631-7c4f-4773-8614-4c5ea0913890
  InstallationDate: Installed on 2014-07-26 (16 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  IwConfig:
   eth1      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: MSI MS-7721
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=09ecdff0-44fe-437e-8063-deabc6feb00e ro recovery nomodeset
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-32-generic N/A
   linux-backports-modules-3.13.0-32-generic  N/A
   linux-firmware                             1.127.5
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/14/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V30.3
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: A88XM-E35 (MS-7721)
  dmi.board.vendor: MSI
  dmi.board.version: 6.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 6.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV30.3:bd03/14/2014:svnMSI:pnMS-7721:pvr6.0:rvnMSI:rnA88XM-E35(MS-7721):rvr6.0:cvnMSI:ct3:cvr6.0:
  dmi.product.name: MS-7721
  dmi.product.version: 6.0
  dmi.sys.vendor: MSI

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