Screen flashes as if the display mode is using garbage values for the top/left and wraps around

Bug #1618672 reported by Brandon Schaefer on 2016-08-31
This bug affects 2 people
Affects Status Importance Assigned to Milestone
xorg-server (Ubuntu)

Bug Description

When typing/moving workspace or anything it will randomly happen where the display will flash around. Sometimes it'll get stuck like this:

Ive no way to reproduce sadly, but at the worst point the screen will start flashing black and I have to reboot.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.4.0-9136.55-generic 4.4.16
Uname: Linux 4.4.0-9136-generic x86_64

ApportVersion: 2.20.3-0ubuntu7
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Aug 30 19:34:28 2016
DistUpgraded: 2016-01-04 12:05:30,294 DEBUG enabling apt cron job
DistroCodename: yakkety
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
 Intel Corporation HD Graphics 5500 [8086:1616] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo HD Graphics 5500 [17aa:5036]
InstallationDate: Installed on 2015-12-21 (253 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: LENOVO 20BXCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-9136-generic.efi.signed root=UUID=21d99ce3-7e95-44e2-a708-10cf194e0be5 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to yakkety on 2016-01-04 (239 days ago) 11/06/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: JBET54WW (1.19 )
dmi.board.asset.tag: Not Available 20BXCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40709 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrJBET54WW(1.19):bd11/06/2015:svnLENOVO:pn20BXCTO1WW:pvrThinkPadT450s:rvnLENOVO:rn20BXCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: 20BXCTO1WW
dmi.product.version: ThinkPad T450s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.70-1
version.libgl1-mesa-dri: libgl1-mesa-dri 12.0.1-3ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 12.0.1-3ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160706-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-2
xserver.bootTime: Tue Aug 30 19:24:57 2016
xserver.configfile: default

xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.18.4-1ubuntu4
xserver.video_driver: modeset

summary: - Screen flashes as if the display mod is using garbage values for the
+ Screen flashes as if the display mode is using garbage values for the
summary: Screen flashes as if the display mode is using garbage values for the
- top/left
+ top/left and wraps around
Changed in xorg (Ubuntu):
importance: Undecided → High
Changed in xorg-server (Ubuntu):
importance: Undecided → High

Brandon Schaefer, thank you for reporting this and helping make Ubuntu better.

As per|Drivers%20and%20Software&beta=false an update to your computer's buggy, insecure, and outdated BIOS is available (1.24). When you update to this following how does this improve the situation?

For more on BIOS updates and linux, please see .

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on how this improves the situation.
3) Please mark this report Status New.

If it's not reproducible, please mark this as Invalid.

Thank you for your help.

tags: added: bios-outdated-1.24
no longer affects: xorg-server (Ubuntu)
Changed in xorg (Ubuntu):
importance: High → Low
status: New → Incomplete
Daniel van Vugt (vanvugt) wrote :

Hmm, I'm not sure making this a discussion about BIOS is helpful. penalvch seems to do this for a lot of bugs.

affects: xorg (Ubuntu) → xorg-server (Ubuntu)
Changed in xorg-server (Ubuntu):
importance: Low → High
status: Incomplete → New

Daniel van Vugt, thanks for the comment.

Given you have found this to be xorg-server, would the original reporter be able to expect a patch provided by you soon?

Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xorg-server (Ubuntu):
status: New → Confirmed
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