Bug 346738

Summary:	Connecting TV screen fails ( all screens get (partialy) blank )
Product:	[Plasma] KScreen	Reporter:	dbacc
Component:	common	Assignee:	Daniel Vrátil <dvratil>
Status:	RESOLVED WORKSFORME
Severity:	major	CC:	nate
Priority:	NOR
Version First Reported In:	5.2.95
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	log

Description dbacc 2015-04-26 21:36:28 UTC

I have a system setup with currently 3 displays on a Nvdia Optimus system, i.e. I fire up some virtual displays at start of sddm in order to be able to connect my monitors (intel-virtual-output).
At this stage I also pass some xrandr command, that fits my needs.

Now, if I plug in my TV as a forth screen, things break down immediately after login or right after plugging in the TV - depending on which occurs first.
That means 3 of the screens are getting dark, and my main screen (laptop LVDS1 ) shows half of some of the desktops that were there before.

Reproducible: Always

Steps to Reproduce:
1. Disconnect TV
2. Start KDE
3. Connect TV

Actual Results:  
Screens turn (partially) black

Expected Results:  
4 different desktops showing up

Here is a log file created after plugging in the TV:

http://pastie.org/10115213

And here the output of kscreen-console bug:

http://pastie.org/10115214

Comment 1 Daniel Vrátil 2015-05-06 17:23:57 UTC

Could you please re-test with KScreen 5.3.0 (from Plasma 5.3.0)? There were some changes in this area in 5.3.0 that should resolve this problem. If the problem is still there, please provide a new log file.

Comment 2 dbacc 2015-06-06 11:33:03 UTC

Created attachment 93035 [details]
log

Comment 3 dbacc 2015-06-06 11:33:27 UTC

Sorry for the delay. I tested again today with KScreen 5.3.1 and it got even worse.

Now, if the TV is plugged in at startup or if I plug it after logging in, plasma will break down after some seconds. So I cannot run run kscreen-console bug.

Here is some log information I could find.
http://pastie.org/10226557
and with more details in the attachment.

Comment 4 Nate Graham 2022-11-08 19:17:27 UTC

Thank you for the bug report. Unfortunately we were not able to get to it yet. Can we ask you to please see if you can reproduce the issue with Plasma 5.25 or 5.26?

If you can, please change the status to CONFIRMED when replying. Thanks a lot!

Comment 5 Bug Janitor Service 2022-11-23 05:14:01 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 6 Bug Janitor Service 2022-12-08 05:13:40 UTC

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!