Since upgrading to 16.04, I've been experiencing frequent difficulties resuming from suspend, causing text not to be displayed at all, or wrong characters to be displayed. Please see the attached screenshots.
I don't know what part of the system this lies in. It seems to affect all gtk apps at least. Chromium renders just fine when this happens, other than the titlebar. Similarly, Cool Retro Term renders correctly, which obviously doesn't use gtk, while Gnome Terminal and Guake do not.
This suggests it could be related to framebuffer corruption, but this report was made with a much earlier kernel, and I had no such problems under 15.10. http://askubuntu.com/questions/688306/text-missing-garbled-after-laptop-resumes-from-sleep-mode
libgtk-3-0 3.18.9-1ubuntu3
linux-image-4.4.0-22-generic 4.4.0-22.40
xserver-xorg-core 2:1.18.3-1ubuntu2
xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
lshw -c video
*-display
description: VGA compatible controller
product: 4th Gen Core Processor Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 06
width: 64 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:30 memory:b2000000-b23fffff memory:a0000000-afffffff ioport:5000(size=64)
dmesg | grep i915
[ 1.383957] [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0
[ 1.534467] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 2.718041] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[ 2.718060] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
[ 2.733438] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe B
[ 2.733460] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO underrun
[ 4.137698] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 66.585338] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=4267 end=4268) time 282 us, min 1073, max 1079, scanline start 1059, end 1090
[ 277.577183] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe B (start=16480 end=16481) time 363 us, min 894, max 899, scanline start 875, end 900
[ 284.581315] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe B (start=16900 end=16901) time 358 us, min 894, max 899, scanline start 891, end 905
[ 300.589410] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=18424 end=18425) time 210 us, min 1073, max 1079, scanline start 1070, end 1084
[ 302.574085] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=18544 end=18545) time 338 us, min 1073, max 1079, scanline start 1061, end 1078
[ 470.560521] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=28707 end=28708) time 301 us, min 1073, max 1079, scanline start 1071, end 1091
[ 595.553386] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=36269 end=36270) time 107 us, min 1073, max 1079, scanline start 1056, end 1083
[ 1043.512803] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe A (start=63370 end=63371) time 402 us, min 1073, max 1079, scanline start 1058, end 1084
[ 1106.508551] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe B (start=66184 end=66185) time 424 us, min 894, max 899, scanline start 876, end 895
---
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: hackel 4767 F.... pulseaudio
/dev/snd/controlC0: hackel 4767 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=74970338-0a72-4e51-8fbf-71e3a0831acb
InstallationDate: Installed on 2014-08-03 (653 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: TOSHIBA Satellite P75-A
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=9b00c4ca-5dfe-4d81-89db-3404d87c8820 ro quiet splash zswap.enabled=1 vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
RelatedPackageVersions:
linux-restricted-modules-4.4.0-22-generic N/A
linux-backports-modules-4.4.0-22-generic N/A
linux-firmware 1.157
Tags: xenial
Uname: Linux 4.4.0-22-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-02 (46 days ago)
UserGroups: adm cdrom dip kvm libvirtd lpadmin plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 04/18/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: 1.50
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: Type2 - Board Product Name1
dmi.board.vendor: Type2 - Board Vendor Name1
dmi.board.version: Type2 - Board Version
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: OEM Chassis Manufacturer
dmi.chassis.version: OEM Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvr1.50:bd04/18/2014:svnTOSHIBA:pnSatelliteP75-A:pvrPSPLNU-04702KB:rvnType2-BoardVendorName1:rnType2-BoardProductName1:rvrType2-BoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
dmi.product.name: Satellite P75-A
dmi.product.version: PSPLNU-04702KB
dmi.sys.vendor: TOSHIBA
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1582823
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.