Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.10 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc5 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1659075 Title: Live media lacks functioning driver for AMD Polaris GPUs, resulting in X failing to start and unusable text console Status in linux package in Ubuntu: Incomplete Bug description: The text console flickers, and ignores most keyboard input. This can be worked around by adding nomodeset to the kernel command line, which will make X fall back on the VESA driver, with all the limitations inherent to that. The resulting installed system will have the same problem, which can alternately be worked around by installing linux-image-generic- hwe-16.04-edge, but this only partially fixes the problem. The Mesa radeonsi driver in Xenial is too old for these GPUs, so while modesetting and display configuration will now be functional, the system will still entirely lack graphics acceleration. The only workarounds I know of for this is to source a newer Mesa from a PPA or similar, or install AMD's proprietary drivers. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-generic 4.4.0.31.33 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: ubuntu-gnome 4365 F.... pulseaudio /dev/snd/controlC1: ubuntu-gnome 4365 F.... pulseaudio CasperVersion: 1.376 Date: Tue Jan 24 18:25:03 2017 IwConfig: lo no wireless extensions. enp3s0 no wireless extensions. LiveMediaBuild: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720) MachineType: ASUS All Series ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid initrd=/casper/initrd.lz quiet splash nomodeset BOOT_IMAGE=/casper/vmlinuz.efi PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-31-generic N/A linux-backports-modules-4.4.0-31-generic N/A linux-firmware 1.157.2 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/07/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2004 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H87M-E dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2004:bd08/07/2014:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH87M-E:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: All Series dmi.product.version: System Version dmi.sys.vendor: ASUS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1659075/+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
