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Hi everybody,
I'm having a severe problem with kde 4.12.2; I'll explain my settings: 1) A screen 2560x1440 on DVI 2) A screen 1920x1080 on VGA My /etc/X11/xorg.conf is this
When kdm starts I can see login manager on both screen (each one with the correct resolution). As far as I log in all disappears on both screen: it remains only a completely black screen (in which I manage to recognize mouse pointer). The strange fact is that I can still use yakuake (without seeing it), as a matter of facts if I digit "reboot" on command line in yakualke, my PC effectively reboots... but i cannot see anything. If I use only one monitor (disconnecting the other) all is ok. I've also i3 working perfectly with the same configuration. Please help me! |
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Press "Shift+Alt+F12" (suspends the compositor)
If things become visible afterwards, please post the output of "glxinfo -l" (note the "-l" for "limits") |
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It worked. My desktop finally has appeared! The (long) output of "glxinfo -l" is the following:
What has happened? It is possible to fix this problem? |
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Hard to say - "black" is usually the result of invalid textures which in case of "works with single, fails with multiscreen" in most of cases means the exception of dimensional limits.
That does however not seem the case here. Can you please login with the multiscreen setup, press Shift+Alt+F12 to get a usable screen, open konsole and run
Then resume compositing (Shift+Alt+F12 as well), wait 20 secs and suspend it again (since I assume the screen turned black again?), then post the kwin.support contents (plain text)? Notice: if "qdbus" says something like "command not known", it may be "qdbus-qt4" - better check that before ![]() |
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Thank you for your help. I did what you told me, here is the output
As an additional information my video card i a nVidia Geeforce 9600 GT |
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Please try to disable the blur effect - if this doesn't change anything, you'll have to debug MESA.
http://www.mesa3d.org/envvars.html
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Sorry about the delay of my reply. I did what you told to me: debug mesa.
after that I have to press alt+shift+f12 in order to newly see the output Thank you |
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Did you write the command in one line?
Even if there was no error, libGL should have printed some lines. In doubt, run:
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having the same issue but it is not resolved with alt +shift+ f12 but by changing resolution any solution or i have to change resolution at each boot?
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Do you use KDE 4.12? If not, this is the wrong thread. Please open a new thread and be specific about your exact distribution and Plasma version.
Running Kubuntu 22.10 with Plasma 5.26.3, Frameworks 5.100.0, Qt 5.15.6, kernel 5.19.0-23 on Ryzen 5 4600H, AMD Renoir, X11
FWIW: it's always useful to state the exact Plasma version (+ distribution) when asking questions, makes it easier to help ... |
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