Xorg freeze

[Marcos R. Tosetti]

When I click the button "Show Applications" then I click on a icon and drag over another icon, then a group is created. If I open a group then I click on the pen button to edit the group name, the title becomes editable, then If I delete all the letters then click out of the group window to save the changes the UI freezes and there's nothing I can do to unfreeze it. The system is still responsible since the mouse cursor moves (but clicks don't have any effect) and the NUMLOCK indicator is also responsive on the keyboard. I then panic and press a wild combination of CTRL+ALT+Windows button+Esc+Q+F1+F2 untill the terminal appears asking for login and password, but the UI disappears, then I can only reboot from there.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat May 23 06:36:22 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GpuHangFrequency: Once a week
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Dell Haswell-ULT Integrated Graphics Controller [1028:0640]
   Subsystem: Dell Radeon R7 M260/M265 [1028:0640]
MachineType: Dell Inc. Inspiron 5447
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-31-generic root=UUID=45c56570-89cf-4b2d-8f15-ee1ce0d54f68 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/12/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 0MHP6R
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A05
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd08/12/2014:svnDellInc.:pnInspiron5447:pvrA05:rvnDellInc.:rn0MHP6R:rvrA01:cvnDellInc.:ct8:cvrA05:
dmi.product.family: 00
dmi.product.name: Inspiron 5447
dmi.product.sku: Inspiron 5447
dmi.product.version: A05
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101+git2005200630.bf602a~oibaf~f
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2~git2005230730.5f365a~oibaf~f
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2~git2005230730.5f365a~oibaf~f
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1872268, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.