Dell Latitude 7490 requires i915.enable_psr=0 (quirk, notebook)
My Dell Latitude 7490 sometimes completely freezes (about once an hour). It must be power cycled to reboot. CTRL-ALT-DELETE
or ALT-PRINT-b
(kernel.sysrq=502
) do not work.
Workaround:
Set GRUB_CMDLINE_LINUX_DEFAULT
kernel parameter in /etc/default/grub
:
i915.enable_psr=0
Then reboot.
Device type: Notebook
Vendor: Dell
Model: Latitude 7490 (081C)
CPU+GPU: i7-8650U (UHD Graphics 620)
OS: Debian-12
Kernel: Linux-6.1.52-1 (stock Debian kernel, DEB: linux-image-6.1.0-12-amd64)
Graphical UI: XOrg running KDE-Plasma-Desktop
lshw output: Dell_Latitude_7490_081C_-_lshw.txt
I couldn't find any traces of a crash in the logs. Searched journalctl -a
, /var/log/syslog
, /sys/fs/pstore
and /var/lib/systemd/pstore/
Maybe add a quirk
Other users report the same for this notebook model and use i915.enable_psr=0
to workaround it. (see below)
-> I guess a device model specific quirk in the i915 driver might make sense!
Related
Bug moved here from: https://bugzilla.kernel.org/show_bug.cgi?id=217897
Related bugs:
- #157 (closed) Graphical corruption with PSR - affects Plymouth only
- #4318 (closed) [Dell Latitude 7320] Clipping and pointer lag after update to kernel 5.13 due to PSR
List of other users which also came to the conclusion to better set i915.enable_psr=0
on their Dell Latitude 7490.
- https://forums.debian.net/viewtopic.php?p=773619&sid=d007f731d6419cb4a70a0f2ab27f0b4a#p773619
- https://bbs.archlinux.org/viewtopic.php?pid=1902231#p1902231
- https://forum.qubes-os.org/t/dell-7490-freezing-after-latest-dom0-upgrade-to-kernel-5-4/2536/6
- https://www.reddit.com/r/linuxquestions/comments/k4imsd/freeze_on_kernels_419_because_of_i915_dell/
- https://medium.com/@natchanan.th/linux-5-x-random-kernel-panic-workaround-4e063e4d34a7
- https://askubuntu.com/a/1448573
- https://forums.centos.org/viewtopic.php?t=80176#p336170
- https://forums.linuxmint.com/viewtopic.php?p=2278684
-
https://paperstack.com/fixing_the_freeze/
- Here someone even completely disables the GPU power management with
i915.enable_dc=0
. But to me it looks likei915.enable_psr=0
is sufficient.
- Here someone even completely disables the GPU power management with