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Le samedi 14 juillet 2012 06:41:54 Hans Muecke a écrit : > Am 13.07.2012 18:51, schrieb Duncan: > > Hi Duncan, > > > Hans Muecke posted on Fri, 13 Jul 2012 12:44:04 -0500 as excerpted: > >> Howdy folks, > >> > >> Ran into a strange problem ... > >> > >> Kubuntu 12.04LTS/KDE4.8.4 ... > >> > >> For whatever reason my plasma desktop crashed yesterday. Couldn't get it > >> to come up again, so I deleted all the plasma files in the home > >> directory to start from scratch. > >> I must have done that in the "protected mode" unknowingly ... since > >> today - when trying to change one of the desktop effects - I was told > >> that I was running protected mode and should switch to the "normal" > >> plasma desktop. > >> Did as requested and ended up with an "upside down" desktop. Visually > >> everything is upside down, but buttons still seem to be where they are > >> supposed to be on the desktop (screenshots: http://goo.gl/N4tVF and > >> http://goo.gl/YjPtc ). Everything looks fine in protected mode ... minus > >> effects that is. > >> > >> Anyone have an idea what went wrong here and how to possibly correct it? > > > > That is indeed a strange problem. > > > > I have a couple ideas, but I guess you're translating from whatever > > (looks like German maybe?) to English (or maybe kubuntu changed the names > > I am doing this from german ... > > > from kde standard?) and the terms don't quite match what I'm used to. So > > let's first confirm that we're talking about the same thing. =:^) > > > > 1) The thread title says plasma, and the pix look like plasma-desktop > > only. So the first thing is to confirm, it's plasma ONLY that's > > affected, correct? All other apps look normal? > > I might have been a bit incorrect here, since I didn't have any > applications running at that moment, when I first ran into this problem. > I just started from scratch again ... deleted the plasma* files in my > home directory, rebooted and this time took care and chose the > plasma-desktop session and not the protected one (when I say protected > ... I can't think of another word for "abgesichert" which is also used > when a windows crashes and gives one the choice of starting windows and > starting a protected windows ... I think you get the idea). > > Started with setting up the desktop and tried to activate desktop > effects via schift-alt-f12 and bamm! Everything upside down again, the > screen flipped again, as I could tell from the control bar on the left > side of the screen and the open system-settings window. Funny "side > effect" .. while visually flipped I still had to click in the areas, > where all the buttons are supposed to be (hope you understand what I am > talking about ... :-) )
This is the most interesting part. What graphic card/driver (optionally acceleration method) are you using? This is only the output that is flipped, KDE and X know nothing about it. Try running an OpenGL appllication (preferrably fullscreen, with kwin effects disabled). My guess is that it too will be flipped. To check that it isn't a weird kwin bug, create a new user, and try enabling effects there. 1 solution workaround you already found :
> > Since you mentioned OpenGL I chchanged the composite type to Xrender and > I don't the problem there (means I can activate effects without the > flipping of the screen). >
the other would be to change/update a part of the graphics stack.
Martin |
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