Opening programs crashes xorg to login screen Ubuntu 20.04

[Cole]

Hello,

Opening programs such as Firefox, terminal, and files crashes Ubuntu 20.04 to the login screen. When Ubuntu crashes, it makes a core file from xorg crash.

This crash behavior began around September 25 2022. I have been using Ubuntu 20.04 since it was released and I have not experienced any crashing before.

I am unsure what other information would be useful. The computer is a dell poweredge r410.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.15.0-48.54~20.04.1-generic 5.15.53
Uname: Linux 5.15.0-48-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
BootLog:

CasperMD5CheckResult: skip
CompositorRunning: None
Date: Wed Oct 12 13:47:05 2022
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Matrox Electronics Systems Ltd. MGA G200eW WPCM450 [102b:0532] (rev 0a) (prog-if 00 [VGA controller])
   Subsystem: Dell PowerEdge R410 MGA G200eW WPCM450 [1028:028c]
InstallationDate: Installed on 2020-05-25 (870 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. PowerEdge R410
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-48-generic root=UUID=bb831c8f-6ec7-4c90-b98b-f4dc367f632b ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/30/2018
dmi.bios.release: 1.14
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.14.0
dmi.board.name: 01V648
dmi.board.vendor: Dell Inc.
dmi.board.version: A06
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.14.0:bd05/30/2018:br1.14:svnDellInc.:pnPowerEdgeR410:pvr:rvnDellInc.:rn01V648:rvrA06:cvnDellInc.:ct23:cvr:sku:
dmi.product.name: PowerEdge R410
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.3
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. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps:

1. Look in /var/crash for crash files and if found run:
    ubuntu-bug YOURFILE.crash
Then tell us the ID of the newly-created bug.

2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us.

Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself.

[Cole (coleanderson)]

Hello,

I visited errors.ubuntu.com and found crash for /usr/lib/xorg/Xorg https://errors.ubuntu.com/oops/7388f41b-4aae-11ed-b356-fa163ef35206

[Daniel van Vugt (vanvugt)]

Thanks. Unfortunately there is no stack trace there.

I suggest next time the crash happens:

1. Reboot.

2. Run:

   journalctl -b-1 > prevboot.txt

3. Attach the resulting text file here.

[Cole (coleanderson)]

I reproduced the crash. I rebooted and ran journalctl -b-1 > prevboot.txt

i have attached prevboot.txt

[Cole (coleanderson)]

i made a screen recording of the crash. it happens when i open programs and move them around.

i use nomachine remote desktop on this computer (i have limited physical access to this computer). i initially thought it may be a nomachine issue, so i created a bug report on the nomachine forum. the nomachine folks reviewed my logs and said the crash isn't caused by nomachine software.

i am trying to figure out why this crash has started happening. please let me know if any additional logs or troubleshooting information would be helpful.

thanks.

[Daniel van Vugt (vanvugt)]

Thanks. The log in comment #5 shows Xorg is crashing with SIGSEGV. But we are lacking a usable stack trace so please follow the steps in comment #2 again.

[Cole (coleanderson)]

Hello,

I tried the steps in comment 2 again. I used ubuntu-bug on the crash file and it created bug 1993038

[Daniel van Vugt (vanvugt)]

Thanks. That crash is already being tracked in bug 1988485.

Potential workaround ideas:

 * Change your cursor theme.

 * Add a Xorg config file that contains:

   Option "SWcursor" "on"