Unfortunately the backtrace in Xorg logs can't be trusted. It's usually
wrong because of the lack of debug symbols. Also I can't find any other
reports of crashes that look like this one. So...
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.
3. If step 2 also failed then apply the workaround from bug 994921,
reboot, reproduce the crash, and retry step 1.
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.
** Tags added: focal
** Package changed: xorg (Ubuntu) => xorg-server (Ubuntu)
** Changed in: xorg-server (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1924667
Title:
Once in a while, xorg crashes after a restart.
Status in xorg-server package in Ubuntu:
Incomplete
Bug description:
[ 1681.827] (II) FBDEV: driver for framebuffer: fbdev
[ 1681.827] (II) VESA: driver for VESA chipsets: vesa
[ 1681.828] (**) modeset(0): claimed PCI slot 0@0:2:0
[ 1681.828] (II) modeset(0): using default device
[ 1681.828] (WW) Falling back to old probe method for fbdev
[ 1681.828] (II) Loading sub module "fbdevhw"
[ 1681.828] (II) LoadModule: "fbdevhw"
[ 1681.828] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so
[ 1681.828] (II) Module fbdevhw: vendor="X.Org Foundation"
[ 1681.828] compiled for 1.20.8, module version = 0.0.2
[ 1681.828] ABI class: X.Org Video Driver, version 24.1
[ 1681.828] (II) modeset(0): Creating default Display subsection in Screen
section
"Default Screen Section" for depth/fbbpp 24/32
[ 1681.828] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[ 1681.828] (EE)
[ 1681.828] (EE) Backtrace:
[ 1681.829] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x563983d6277c]
[ 1681.829] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60)
[0x7f7d9807041f]
[ 1681.829] (EE) 2: /usr/lib/xorg/Xorg (xf86PlatformMatchDriver+0x5b0)
[0x563983c5c400]
[ 1681.829] (EE) 3: /usr/lib/xorg/Xorg (xf86CollectOptions+0x77)
[0x563983c3f227]
[ 1681.829] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 1681.829] (EE) 4: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0)
[0x7f7d97845bd0]
[ 1681.829] (EE) 5: /usr/lib/xorg/Xorg (InitOutput+0xb94) [0x563983c42be4]
[ 1681.829] (EE) 6: /usr/lib/xorg/Xorg (InitFonts+0x1d4) [0x563983c04e34]
[ 1681.829] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3)
[0x7f7d97e8e0b3]
[ 1681.829] (EE) 8: /usr/lib/xorg/Xorg (_start+0x2e) [0x563983beea7e]
[ 1681.829] (EE)
[ 1681.829] (EE) Segmentation fault at address 0x124
[ 1681.829] (EE)
Fatal server error:
[ 1681.829] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 1681.829] (EE)
[ 1681.829] (EE)
I am using Ubuntu 20.04. When I reboot my laptop, the screen will
probably go grey. After checking the log, I find the error message
above.
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