Bug 376788 - Attaching external screen while suspended results in kernel panic on resume
Summary: Attaching external screen while suspended results in kernel panic on resume
Status: RESOLVED UPSTREAM
Alias: None
Product: plasmashell
Classification: Plasma
Component: generic-multiscreen (show other bugs)
Version: 5.9.1
Platform: Other Linux
: NOR normal
Target Milestone: 1.0
Assignee: Aleix Pol
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-02-22 10:22 UTC by Gábor Katona
Modified: 2017-03-06 16:15 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description Gábor Katona 2017-02-22 10:22:52 UTC 
I use my Dell E7470 either with its own screen or with a port replicator having two screens attached to it (internal screen disabled). Before connecting to the port replicator the laptop is in sleep mode, put there using only the internal screen. After connecting and resuming the result is sometimes a kernel panic. 
It happens erratically, but it is present at least in the previous 2 months (but maybe even earlier). I do not see any info in systemd journal. Maybe with some guide I can give more info.

The system is openSUSE Tumbleweed, currently running plasma 4.9.1, frameworks 5.30.0, kernel 4.9.9. But this happened with previous plasma versions also.

This bug is related: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1589397
Comment 1 Marco Martin 2017-03-06 16:15:24 UTC 
there isn't really much we can do a bout a kernel panic, it's a kernel/drivers problem