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. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1355044/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp