Hi, Apparently I was too optimistic about the issue. I've tested both the kernel from http://kernel.ubuntu.com/~kernel-ppa/ mainline/drm-intel-nightly/current/ and the latest mainstream 4.8.1 and unfortunately the issue is still present in both of them
2016-09-01 18:17 GMT+02:00 Christopher M. Penalver < christopher.m.penal...@gmail.com>: > Piotr Wieczorek, to see if this is addressed upstream, could you please > test http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel- > nightly/current/ and advise to the results? > > ** Tags removed: kernel-bug-exists-upstream-4.7 needs-upstream-testing > ** Tags added: kernel-bug-exists-upstream kernel-bug-exists-upstream-4. > 8-rc4 > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1609074 > > Title: > Screen flicker on 16.04 > > Status in linux package in Ubuntu: > Incomplete > > Bug description: > The computer running Ubuntu is being used as HTPC connected via HDMI to > a screen projector. > After upgrading to 16.04, it's unusable under production kernel. > The screen starts flickering after a while (it's easily triggered by > fast scrolling e.g. terminal's window). The whole screen get's filled with > a noise, and then the projector gets disconnected for a while. > > The computer runs fine on an older kernel (4.2.0-35), it's still > broken on the mainline kernel 4.7.0. > > ProblemType: Bug > DistroRelease: Ubuntu 16.04 > Package: linux-image-4.4.0-31-generic 4.4.0-31.50 > 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/controlC0: pwiecz 3977 F.... pulseaudio > /dev/snd/controlC1: pwiecz 3977 F.... pulseaudio > CurrentDesktop: Unity > Date: Tue Aug 2 19:40:29 2016 > InstallationDate: Installed on 2014-02-02 (912 days ago) > InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 > (20131016.1) > MachineType: Gigabyte Technology Co., Ltd. H87N-WIFI > ProcFB: 0 inteldrmfb > ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic > root=UUID=98e2c9a3-1a1a-4d21-b370-79d0cde7b5f2 ro quiet splash > vt.handoff=7 > 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 > SourcePackage: linux > UpgradeStatus: Upgraded to xenial on 2016-04-27 (97 days ago) > dmi.bios.date: 08/18/2015 > dmi.bios.vendor: American Megatrends Inc. > dmi.bios.version: F9 > dmi.board.asset.tag: To be filled by O.E.M. > dmi.board.name: H87N-WIFI > dmi.board.vendor: Gigabyte Technology Co., Ltd. > dmi.board.version: x.x > dmi.chassis.asset.tag: To Be Filled By O.E.M. > dmi.chassis.type: 3 > dmi.chassis.vendor: Gigabyte Technology Co., Ltd. > dmi.chassis.version: To Be Filled By O.E.M. > dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF9:bd08/18/2015: > svnGigabyteTechnologyCo.,Ltd.:pnH87N-WIFI:pvrTobefilledbyO. > E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH87N-WIFI:rvrx.x: > cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: > dmi.product.name: H87N-WIFI > dmi.product.version: To be filled by O.E.M. > dmi.sys.vendor: Gigabyte Technology Co., Ltd. > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/ > 1609074/+subscriptions > -- 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/1609074 Title: Screen flicker on 16.04 Status in linux package in Ubuntu: Incomplete Bug description: The computer running Ubuntu is being used as HTPC connected via HDMI to a screen projector. After upgrading to 16.04, it's unusable under production kernel. The screen starts flickering after a while (it's easily triggered by fast scrolling e.g. terminal's window). The whole screen get's filled with a noise, and then the projector gets disconnected for a while. The computer runs fine on an older kernel (4.2.0-35), it's still broken on the mainline kernel 4.7.0. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-31-generic 4.4.0-31.50 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/controlC0: pwiecz 3977 F.... pulseaudio /dev/snd/controlC1: pwiecz 3977 F.... pulseaudio CurrentDesktop: Unity Date: Tue Aug 2 19:40:29 2016 InstallationDate: Installed on 2014-02-02 (912 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) MachineType: Gigabyte Technology Co., Ltd. H87N-WIFI ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic root=UUID=98e2c9a3-1a1a-4d21-b370-79d0cde7b5f2 ro quiet splash vt.handoff=7 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 SourcePackage: linux UpgradeStatus: Upgraded to xenial on 2016-04-27 (97 days ago) dmi.bios.date: 08/18/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F9 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: H87N-WIFI dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF9:bd08/18/2015:svnGigabyteTechnologyCo.,Ltd.:pnH87N-WIFI:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnH87N-WIFI:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: H87N-WIFI dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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