Bug 370991

Summary:	Black screen coming out of sleep
Product:	[I don't know] kde	Reporter:	Rajinder Yadav <rajindery>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED DUPLICATE
Severity:	major	CC:	cfeck
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Kubuntu
OS:	Linux
Latest Commit:		Version Fixed In:

Description Rajinder Yadav 2016-10-17 08:15:20 UTC

Put system into RAM suspend from the taskbar, wait several hours and wake up system.

I see a black screen with a mouse pointer that I can move around, nothing else. I am unable to login my system and forced to do a cold reboot.

Using Kubuntu 16.04.01
KDE Plasma: 5.5.5
Qt Ver: 5.5.1
Kernel: 4.4.0-43-generic


Reproducible: Sometimes

Steps to Reproduce:
1.

Comment 1 Rajinder Yadav 2016-10-17 08:18:14 UTC

My system is set to request a password to login, so could be issues with login screen or window system, note the mouse is visible and responds to mouse moves.

Comment 2 Christoph Feck 2016-10-18 01:07:27 UTC

Does pressing Shift+Alt+F12 when you get the black screen show you the desktop again?

Comment 3 Rajinder Yadav 2016-10-18 09:31:15 UTC

Next time this happens, I will do what you suggested and report back.

Comment 4 Rajinder Yadav 2016-10-24 01:02:11 UTC

 Christoph, this does not help, happen again and I was forced to cold reboot.

I suspect is has to do something with the session managed when, "Lock screen on resume" is selected.

Comment 5 Christoph Feck 2016-10-24 03:22:28 UTC

Thanks for the information. Unless we have more information, let's assume it is the same bug as reported earlier. It might be a driver issue, please see bug 370352 comment #1.

*** This bug has been marked as a duplicate of bug 370352 ***