*** This bug is a duplicate of bug 1868551 ***
https://bugs.launchpad.net/bugs/1868551
** This bug has been marked a duplicate of bug 1868551
Intel GPU Hangs : random screen freezing w/ Ubuntu 20.04 (Linux 5.4)
i915_active_acquire
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@leozinho29-eu Please install this kernel and see if it still crashes:
https://kernel.ubuntu.com/~sultan/i915-lp1870265/
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https://bugs.launchpad.net/bugs/1870265
Title:
This bug is fixed by upstream commit
da42104f589d979bbe402703fd836cec60befae1:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=da42104f589d979bbe402703fd836cec60befae1
It looks like that commit was *supposed* to be backported to 5.4 ("Cc:
# v5.4+"), but the i915
I did a bisect for this bug, now it is weekend and I was able to do
tests on this computer. The bisect result is:
51d69817519f5f00041a1a039277f0367d76c82c is the first new commit
commit 51d69817519f5f00041a1a039277f0367d76c82c
Merge: 0174cb6ce944 f3efc406d67e
Author: Linus Torvalds
Date: Wed
The crash is still present with 5.4.0-24. The attached file has syslog,
Xorg.0.log and xsession-errors.
I noticed there are two workarounds for this:
1) Set the intel Xorg session instead of modesetting;
2) Change vblank_mode parameter from xfwm4: auto or glx will trigger this
crash, xpresent
Can you please test 5.4.0-24?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1870265
Title:
Intel GPU causes BUG:
I'm not sure this is good or bad news, but glxgears also crashes the
system:
Apr 8 15:13:49 Lenovo-ideapad-310-14ISK kernel: [ 3863.436043] BUG: kernel
NULL pointer dereference, address: 0040
Apr 8 15:13:49 Lenovo-ideapad-310-14ISK kernel: [ 3863.436055] #PF: supervisor
read
Using the 5.6.3 kernel, this bug does not happen.
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Title:
Intel GPU causes BUG: kernel NULL pointer dereference, address:
Please test mainline kernel 5.6.
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https://bugs.launchpad.net/bugs/1870265
Title:
Intel GPU causes BUG: kernel NULL pointer dereference, address:
0040
Status
I just tested the Xubuntu Beta ISO and, from it, I was able to reproduce
the system crash.
Unfortunately I was unable to obtain any logs, as sshd was no longer
responsive and it was a live system.
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This crash seems to be easy to reproduce. I made an Apitrace of the part
of Gurumin with the scene that caused the first crash and let it
replaying endlessly. After 1h30min, the system crashed again.
The apitrace can be obtained from:
https://mega.nz/file/8thHlYpa#_HBCUsIifUnD8R3K2U6v--
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