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 v4.9 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/v4.9-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/1641152 Title: Scrambled UI: Text in the Unity windows disappears/mixed after the resume from the screen idle state Status in linux package in Ubuntu: Incomplete Bug description: Text in Unity windows becomes total mess after suspending and waking up Ubuntu 16.04. I had this issue a few times, but it is not always reproducable. The screenshot is attached, where there is disappeared or mixed text on buttons and window panels (though the copy-paste from such broken terminal works fine). $ uname -a Linux A2XLab 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Note, that there is enoguht RAM and no any external monitors are plugged. KiB Mem : 7830196 total, 278792 free, 5922752 used, 1628652 buff/cache KiB Swap: 11999228 total, 8749084 free, 3250144 used. 755228 avail Mem --- ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: lav 6518 F.... pulseaudio /dev/snd/controlC1: lav 6518 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.04 EcryptfsInUse: Yes InstallationDate: Installed on 2014-10-25 (750 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: LENOVO 20A8S28400 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-47-generic root=UUID=daa4b3a5-47b3-4c16-a1de-2dde0c540c4a ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24 RelatedPackageVersions: linux-restricted-modules-4.4.0-47-generic N/A linux-backports-modules-4.4.0-47-generic N/A linux-firmware 1.157.4 Tags: xenial Uname: Linux 4.4.0-47-generic x86_64 UpgradeStatus: Upgraded to xenial on 2016-09-11 (63 days ago) UserGroups: adm cdrom dip docker libvirtd lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 06/06/2014 dmi.bios.vendor: LENOVO dmi.bios.version: GRET39WW (1.16 ) dmi.board.asset.tag: Not Available dmi.board.name: 20A8S28400 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGRET39WW(1.16):bd06/06/2014:svnLENOVO:pn20A8S28400:pvrThinkPadX1Carbon2nd:rvnLENOVO:rn20A8S28400:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20A8S28400 dmi.product.version: ThinkPad X1 Carbon 2nd dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641152/+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
