| Summary: | black screen on session restore until removing ~/.local/share/kscreen | ||
|---|---|---|---|
| Product: | [Plasma] KScreen | Reporter: | Martin Steigerwald <martin.steigerwald> |
| Component: | common | Assignee: | Sebastian Kügler <sebas> |
| Status: | RESOLVED WORKSFORME | ||
| Severity: | normal | CC: | ashl1future, james.ellis, Martin, simonandric5 |
| Priority: | NOR | ||
| Version: | 5.5.4 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: |
broken ~/.local/share/kscreen that led to black display
~/.local/share/kscreen directory at three states Step 2. Open System settings Step 3. Enable second monitor Step 4. Copied and freezed image with small interacting part (that area is green) Step 8. System Settings after enabled second monitor, removed kscreen dir Step 9. After unified screen Screenshot from this morning's resume output of kscreen-console bug when black screen is present |
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Description
Martin Steigerwald
2016-03-15 15:08:18 UTC
Created attachment 97913 [details]
broken ~/.local/share/kscreen that led to black display
Fujitsu Siemens Computers GmbH-P24T-7 is home display connected via displayport via Minidock.
Fujitsu Siemens Computers GmbH-P23T-6 is office display connected via displayport to hdmi adapter.
I've the same issue try to explain it more. The bug is reproducible every time for me. 1. Plug in second monitor 2. Open the System Settings -> Display and Monitor, the new attached screen is disabled 3. Enable new display and press Apply. 4. The screen is modified. It copies current displayed image, moves it down from top of monitor and fixed the image (system is still responsible and all actoins and movements will be at top part of screen). I backuped the "kscreen" directory as "kscreen.bad" 5. Logout the KDE session 6. Remove ~/.local/share/kscreen 7. Login again. I backuped "kscreen" directory at the moment as "kscreen.immediate.after.bad.conf.removed" 8. Open System settings- -> Display and Monitor. The second screen is enabled now. 9. Unifies screens 10. All is working now. I backuped "kscreen" directory at the moment as "kscreen.bak" 11. Unplug and plug the second monitor now works fine. Created attachment 97997 [details]
~/.local/share/kscreen directory at three states
It reproduces on Ubuntu 14.04 LTS, 15.10 and 16 (dev) Now I'm on 15.10 with kscreen-5.4.2-0ubuntu1 amd64 Created attachment 97998 [details]
Step 2. Open System settings
Created attachment 97999 [details]
Step 3. Enable second monitor
Created attachment 98000 [details]
Step 4. Copied and freezed image with small interacting part (that area is green)
Created attachment 98001 [details]
Step 8. System Settings after enabled second monitor, removed kscreen dir
Created attachment 98002 [details]
Step 9. After unified screen
seems the primary display now second (NOT gray in dropbox "laptop screen"). As you can see, custom wallpapers doesn't work here. If laptop screen is closed, the custom wallpapers will be appeared.
How to reproduce? Because in according to step 11 all works fine from that point. 12. Unplug the laptop from second screen 13. Reboot it and all goes from step 1 now. Alexey, I do not understand whether you are really seeing the *same* bug. Do you have a *black* screen on session *login* with a certain kscreen configuration? If yes, thats the same bug. If not, its likely a different bug and I kindly ask you to open a new bug report instead of hijacking this one. Thank you, Martin Yes. I will see black screen if login after step 5 and don't remove ~/.local/share/kscreen Okay. Thank you for the detailed description. Which ~/.local/share/kscreen in your archive correspondends to the black screen on login state? As I wrote above, the "kscreen.bad" Alexey, okay, got confused by 4. The screen is modified. It copies current displayed image, moves it down from top of monitor and fixed the image (system is still responsible and all actoins and movements will be at top part of screen). I backuped the "kscreen" directory as "kscreen.bad" that didn´t sound like a black screen to me. Maybe for me this is two bugs in case first involves second. This happens for me, using a DisplayPort connection as well running on an Intel Iris Pro with the "intellinuxgraphics" drivers from intel. I have to rm the kscreen settings .local/share/kscreen/* and then kill sddm, losing everything including running virtual machines and try to log in again. Reading an unrelated issue #336225 it's possible that fixes for the various issues with KDE and multiple monitors is landing in 5.6 with fixes from Qt. Can't be sure, though. (In reply to jamese from comment #17) > Reading an unrelated issue #336225 it's possible that fixes for the various > issues with KDE and multiple monitors is landing in 5.6 with fixes from Qt. > Can't be sure, though. Are you sure with bug #336225 as it is about kaddressbook? What steps reproduce this bug (black screen)? Sorry, #356225, but I can't find a link to edit my comment to correct the typo. I thought this sounded familiar and looking back through my bug list I found #349482 which I resolved as a duplicate of #353975 as it was getting more interest. This may be a duplicate of that? Other thing worth noting is that I have two U2414H screens and Alexey's screenshots show the same screen type. Mine are on an MST chain using Displayport 1.2 - so DP cable from laptop to first screen (DP1-1) which has a DP cable to the terminating screen (DP1-2) All these issues happen for me when switching from multi-screen to laptop only and back to multi-screen. Last thing to note is that when I switch to runlevel 1 to rm .local/share/kscreen/* and then kill SDDM after I have no desktop, the text from the shell is cloned perfectly onto all three screens. Created attachment 98051 [details]
Screenshot from this morning's resume
Plugged in DP cable and got all three screens with two panels on DP1-2 and one on Laptop. Switch primary from laptop to DP1-1 and this was the result.
Laptop screen black, mouse can go into it, can drag application windows into it. No right click context menu, can't drag widgets into it, can't create widgets on it.
I get three notification messages in the systray, possibly related to the original 3 panels.
Created attachment 98055 [details]
output of kscreen-console bug when black screen is present
Also, when I click second time to button "Apply" after step 4, the screen became black. Thank you for reporting this bug in KDE software. As it has been a while since this issue was reported, can we please ask you to see if you can reproduce the issue with a recent software version? If you can reproduce the issue, please change the status to "CONFIRMED" when replying. Thank you! I did not see this in a very long time. Thus closing. Alexey, feel free to reopen in case you still see this. |