Bug 965517

Summary:	Switching off monitor causes sddm-greeter to exit
Product:	[openSUSE] openSUSE Distribution	Reporter:	Forgotten User qouZmm_Kx7 <forgotten_qouZmm_Kx7>
Component:	KDE Workspace (Plasma)	Assignee:	E-Mail List <opensuse-kde-bugs>
Status:	RESOLVED DUPLICATE	QA Contact:	E-mail List <qa-bugs>
Severity:	Major
Priority:	P5 - None	CC:	forgotten_qouZmm_Kx7, wbauer
Version:	Leap 42.1
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Forgotten User qouZmm_Kx7 2016-02-07 12:54:52 UTC

Steps to reproduce:
1) log in to KDE5
2) lock the screen (hit CTRL + ALT + L)
3) switch the monitor off
4) wait a couple of seconds
5) switch the monitor on.

Results:
sddm-greeter exited, and, if plasmashell didn't crash, which is another issue, the screen is unlocked and fully accessible. No need to enter the password.

I guess that setQuitOnLastWindowClosed(false) in sddm-greeter would be enough to prevent that, but I don't know if it could cause other issues.

Comment 1 Wolfgang Bauer 2016-02-07 13:32:49 UTC

You are mixing two different things here:
Plasma's lockscreen is totally independent of sddm and its greeter, except that there's a breeze theme for both.

So is this about the lock screen only?
That's already reported as Bug#964548 and currently under investigation.

Or do you have a problem with sddm (i.e. the *login* screen) too?

Comment 2 Forgotten User qouZmm_Kx7 2016-02-07 14:30:22 UTC

Right. My mistake in thinking KDE could uses sddm-greeter as screenlocker.

On the bright side, I have patched sddm-greeter to add setQuitOnLastWindowClosed(false), and now the *login* screen doesn't die if the monitor is switched off at boot (which would leave you unable to log in to KDE/Gnome once the monitor is switched on again).

Sorry again for the confusion.

Comment 3 Wolfgang Bauer 2016-02-08 08:56:00 UTC

Ok, so sddm's greeter quits too when you turn off the monitor?
Let's adjust the summary then.

For the record, I cannot reproduce this here on my 13.2 radeon system (but then I cannot reproduce the screenlocker issue either by just switching off the only monitor or even disconnect it).
So, what graphics driver are you using?

What I can reproduce is that sddm's greeter doesn't show up at all if no monitor is connected during boot (if it is only turned off, it does work fine here though).

I filed an upstream bug report about this:
https://github.com/sddm/sddm/issues/598

Comment 4 Wolfgang Bauer 2016-02-08 09:12:56 UTC

PS: Actually your report here is a duplicate of Bug#964353 then, no?

Comment 5 Forgotten User qouZmm_Kx7 2016-02-08 11:45:57 UTC

(In reply to Wolfgang Bauer from comment #4)
> PS: Actually your report here is a duplicate of Bug#964353 then, no?

in the end it is, you're right. Sorry again for the confusion.

*** This bug has been marked as a duplicate of bug 964353 ***