*** This bug is a duplicate of bug 1999008 ***
https://bugs.launchpad.net/bugs/1999008
I didnt say you can skip the check for xf86ModeVRefresh returning 0.
The two bug reports may report two different bugs, triggered by different
inputs.
(So maybe both checks are neccessary, but I cannot speak for #1999008, because
I dont face that specific behaviour.)
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https://bugs.launchpad.net/bugs/1999852
Title:
xserver-xorg-core_21.1.3-2ubuntu2.5 segfaults
Status in xorg-server package in Ubuntu:
New
Bug description:
Running xserver-xorg-core_21.1.3-2ubuntu2.3_amd64.deb was fine.
Since the recent update to xserver-xorg-core_21.1.3-2ubuntu2.5_amd64.deb Xorg
always segfaults at startup.
Going back to xserver-xorg-core_21.1.3-2ubuntu2.3_amd64.deb works again.
(Tried it multiple times and it is reproducable.)
The errors from the last Xorg.log:
[ 54.562] (EE) Backtrace:
[ 54.563] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x139) [0x560707b09719]
[ 54.564] (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50)
[0x7f40658cd520]
[ 54.564] (EE) 2: /usr/lib/xorg/Xorg (xf86ModeVRefresh+0x4)
[0x560707a0e724]
[ 54.565] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 54.565] (EE) 3: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0)
[0x7f406513b9b0]
[ 54.565] (EE) 4: /usr/lib/xorg/Xorg (xf86ProbeOutputModes+0x147)
[0x560707a07e47]
[ 54.565] (EE) 5: /usr/lib/xorg/Xorg (xf86InitialConfiguration+0x191)
[0x560707a089b1]
[ 54.565] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 54.565] (EE) 6: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0)
[0x7f406513f07c]
[ 54.566] (EE) unw_get_proc_name failed: no unwind info found [-10]
[ 54.566] (EE) 7: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0)
[0x7f40651374bf]
[ 54.566] (EE) 8: /usr/lib/xorg/Xorg (InitOutput+0xb8b) [0x5607079d73ab]
[ 54.566] (EE) 9: /usr/lib/xorg/Xorg (InitFonts+0x1dc) [0x56070799734c]
[ 54.567] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6
(__libc_init_first+0x90) [0x7f40658b4d90]
[ 54.567] (EE) 11: /lib/x86_64-linux-gnu/libc.so.6
(__libc_start_main+0x80) [0x7f40658b4e40]
[ 54.568] (EE) 12: /usr/lib/xorg/Xorg (_start+0x25) [0x560707980605]
[ 54.568] (EE)
[ 54.568] (EE) Segmentation fault at address 0xa8
[ 54.568] (EE)
Fatal server error:
[ 54.568] (EE) Caught signal 11 (Segmentation fault). Server aborting
[ 54.568] (EE)
[ 54.568] (EE)
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