Bug 415608

Summary:	Frozen green screen when trying to wake up the system from sleep state. This problem is present on plasma 5 with linux kernel 5.x. Sleep works fine on linux kernel 4.x. Processor : AMD RYZEN 2400G
Product:	[Plasma] plasmashell	Reporter:	govindvshenoy
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED UPSTREAM
Severity:	crash	CC:	plasma-bugs-null, steffen.sindzinski
Priority:	NOR
Version First Reported In:	5.17.90
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Kernel dump

Description govindvshenoy 2019-12-27 14:26:29 UTC

SUMMARY
Frozen green screen when trying to wake up the system from sleep state.
This problem is present on plasma 5 with linux kernel 5.x. Sleep works fine on linux kernel 4.x. Processor : AMD RYZEN 2400G

STEPS TO REPRODUCE
1. Use plasma 5 (with linux kernel 5.x)
2. Put pc to sleep
3. Wake up pc

OBSERVED RESULT

Frozen Green screen

EXPECTED RESULT

Lock Screen

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Linux kernel 5.4.6
(available in About System)
KDE Plasma Version: 5.17.4
KDE Frameworks Version: 5.65.0
Qt Version: 5.14.0

ADDITIONAL INFORMATION

This happens on Ryzen 5 2400g

Comment 1 David Edmundson 2020-01-15 00:45:26 UTC

Can you VT switch (i.e control+alt+f2)

Comment 2 govindvshenoy 2020-01-23 03:25:34 UTC

(In reply to David Edmundson from comment #1)
> Can you VT switch (i.e control+alt+f2)

No, cannot access VT. The green screen is frozen and only solution is to restart the pc.

Comment 3 Steffen 2020-01-26 13:46:15 UTC

I am having the same green screen issue with Ryzen 3200G since kernel 5.x. Before I now I am able to VT switch and then all sessions are working again. Same if I am able to blindly enter my password and suspend and resume my system. In older plasma /kernel versions it was not possible to get a working screen and I had to reset the computer. 

Betriebssystem: Arch Linux 
KDE-Plasma-Version: 5.17.90
KDE-Frameworks-Version: 5.66.0
Qt-Version: 5.14.0
Kernel-Version: 5.4.14-arch1-1
Art des Betriebssystems: 64-bit
Prozessoren: 4 × AMD Ryzen 3 2200G with Radeon Vega Graphics
Speicher: 13,7 GiB Arbeitsspeicher

Comment 4 Steffen 2020-01-26 16:59:26 UTC

Created attachment 125445 [details]
Kernel dump

Comment 5 Steffen 2020-01-26 17:00:23 UTC

Here the first 1000 lines of kernel log. The drm messages repeat a couple of times.

Comment 6 Christoph Feck 2020-02-04 00:22:34 UTC

If you cannot switch to the Linux VT, there is an issue with the kernel. I suggest to report it to the bug tracker of your distribution.