Public bug reported: Please see bug #1652585, as the symptoms reported there are the same I see.
This problem never occurred under Ubuntu 14.04. The problem started occurring after a fresh install of 16.04 on the same hardware (my /home directory was carried over). I'm current on updates and the symptoms have not changed since initial installation several months ago. The problem occurs after a resume, but infrequently. Maybe every 5th or 8th, but I haven't kept track. Logging out and back in is enough to correct the problem. The font characters in all xterms, on my WM's status bar (I run DWM), and in GUI applications are mostly gone, as if most text characters have been rendered instead as a space or an underscore. All programs are otherwise responsive. I'm a heavy xterm user, but I also usually have Thunderbird and Mozilla running. I'm trying the xorg.conf workaround suggested in bug #1652585 but I haven't gone through enough suspend/resume cycles to know for sure if it works in my case. I will be trying the latest daily live image, but I'm not sure I'll get enough runtime over the weekend to guarantee I see the problem before I have to revert to using the installed OS on this hardware (my daily driver). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-57-generic 4.4.0-57.78 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 Uname: Linux 4.4.0-57-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: smckown 1429 F.... pulseaudio Date: Sat Dec 31 13:07:54 2016 HibernationDevice: RESUME=UUID=8ee93cb1-73de-426a-a264-d66f6d85a68d InstallationDate: Installed on 2016-05-15 (229 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 2306CTO ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-57-generic N/A linux-backports-modules-4.4.0-57-generic N/A linux-firmware 1.157.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/03/2016 dmi.bios.vendor: LENOVO dmi.bios.version: G2ETA6WW (2.66 ) dmi.board.asset.tag: Not Available dmi.board.name: 2306CTO 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:bvrG2ETA6WW(2.66):bd03/03/2016:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2306CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- 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/1653382 Title: Fonts are broken after suspend/resume somtimes Status in linux package in Ubuntu: New Bug description: Please see bug #1652585, as the symptoms reported there are the same I see. This problem never occurred under Ubuntu 14.04. The problem started occurring after a fresh install of 16.04 on the same hardware (my /home directory was carried over). I'm current on updates and the symptoms have not changed since initial installation several months ago. The problem occurs after a resume, but infrequently. Maybe every 5th or 8th, but I haven't kept track. Logging out and back in is enough to correct the problem. The font characters in all xterms, on my WM's status bar (I run DWM), and in GUI applications are mostly gone, as if most text characters have been rendered instead as a space or an underscore. All programs are otherwise responsive. I'm a heavy xterm user, but I also usually have Thunderbird and Mozilla running. I'm trying the xorg.conf workaround suggested in bug #1652585 but I haven't gone through enough suspend/resume cycles to know for sure if it works in my case. I will be trying the latest daily live image, but I'm not sure I'll get enough runtime over the weekend to guarantee I see the problem before I have to revert to using the installed OS on this hardware (my daily driver). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-57-generic 4.4.0-57.78 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 Uname: Linux 4.4.0-57-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: smckown 1429 F.... pulseaudio Date: Sat Dec 31 13:07:54 2016 HibernationDevice: RESUME=UUID=8ee93cb1-73de-426a-a264-d66f6d85a68d InstallationDate: Installed on 2016-05-15 (229 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 2306CTO ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic root=/dev/mapper/vg0-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-57-generic N/A linux-backports-modules-4.4.0-57-generic N/A linux-firmware 1.157.6 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/03/2016 dmi.bios.vendor: LENOVO dmi.bios.version: G2ETA6WW (2.66 ) dmi.board.asset.tag: Not Available dmi.board.name: 2306CTO 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:bvrG2ETA6WW(2.66):bd03/03/2016:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2306CTO dmi.product.version: ThinkPad X230 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1653382/+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