Yes, screen tearing in the modesetting driver is a known problem (bug
1846398) but is off topic for this bug.
** Summary changed:
- Some applications don't redraw their windows correctly
+ Some applications don't redraw their windows correctly when using
xserver-xorg-video-intel
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Expired => New
** No longer affects: fvwm (Ubuntu)
** No longer affects: xorg-server (Ubuntu)
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https://bugs.launchpad.net/bugs/1850635
Title:
Some applications don't redraw their windows correctly when using
xserver-xorg-video-intel
Status in xserver-xorg-video-intel package in Ubuntu:
New
Bug description:
After updating from 19.04 to 19.10 I noted that some apps don't redraw
their window(s) correctly. Affected apps include (it seems) all Qt-
based apps (including KDE and VirtualBox), as well as
firefox/thunderbird.
Unaffected apps include emacs, chrome, xterm.
The symptom is that an affected app will only redraw its window when
another X window redraws its window. If there is no other window,
then the app's window is not redrawn at all.
This is best illustrated with a video, which shows the problem using
konsole and kpat (both KDE apps) :-
https://photos.app.goo.gl/hd7UtTt2k6Pn9GBLA
I am using the intel graphics driver (no graphics card).
Other info as requested below :-
$ lsb_release -rd
Description: Ubuntu 19.10
Release: 19.10
$ apt-cache policy xserver-xorg
xserver-xorg:
Installed: 1:7.7+19ubuntu12
Candidate: 1:7.7+19ubuntu12
Version table:
*** 1:7.7+19ubuntu12 500
500 http://gb.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Wed Oct 30 11:50:09 2019
DistUpgraded: 2019-10-21 13:25:02,550 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: eoan
DistroVariant: ubuntu
DkmsStatus: virtualbox, 6.0.14, 5.3.0-19-generic, x86_64: installed
GraphicsCard:
Intel Corporation HD Graphics 530 [8086:1912] (rev 06) (prog-if 00 [VGA
controller])
Subsystem: Gigabyte Technology Co., Ltd HD Graphics 530 [1458:d000]
InstallationDate: Installed on 2016-01-02 (1396 days ago)
InstallationMedia: Ubuntu-Server 15.10 "Wily Werewolf" - Release amd64
(20151021)
MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-19-generic
root=UUID=8af2cd02-0009-4ce5-9ec6-e6cdf44c9411 ro nopti
SourcePackage: xorg
UpgradeStatus: Upgraded to eoan on 2019-10-21 (8 days ago)
dmi.bios.date: 07/23/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F2
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z170X-Gaming 5
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: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrF2:bd07/23/2015:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ170X-Gaming5:rvrx.x:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: To be filled by O.E.M.
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: To be filled by O.E.M.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
modified.conffile..etc.default.apport:
# set this to 0 to disable apport, or to 1 to enable it
# you can temporarily override this with
# sudo service apport start force_start=1
#enabled=1
enabled=0
mtime.conffile..etc.default.apport: 2016-01-06T17:10:43.876145
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.1-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20190815-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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