Version: unspecified (using KDE 4.5.2) OS: Linux Hi there, System environment: -- chipset: i945GM (45GM) -- system architecture: i686 -- xf86-video-intel: 2.13.0 -- xserver: 1.8.2 (xorg-server) -- mesa: 7.8.2 -- libdrm: 2.4.22 -- kernel: 2.6.36 -- Linux distribution: Chakra Linux -- Machine or mobo model: Dell Latitude E5500 -- Display connector: VGA (+ laptop screen, dual head) Problem description: I know that there are problems with the intel drivers at all, but most of them should be fixed in 2.6.36 release. Anyway, I get a strange "hang" of KDE when I configure the screen edges (which works), but pressing the "Apply" button, KDE completely freezes. I can't say weather it's a KDE freeze or Intel Graphics freeze, but probably the developers (intel) need more information about what's going on there. I filed an upstream bug (https://bugs.freedesktop.org/show_bug.cgi?id=30990) for intel as well, but I wanted to be sure that this is definitely a GPU hang and no KDE crash. Reproducible: Always Steps to Reproduce: System Settings / Window Behaviour / Screen Edges Turn some effects on / off and press Apply. Actual Results: The system hangs, I can still move the mouse, but the rest of KDE (Plasma / Windows etc). is not responding on anything. Expected Results: I would want it not to hang, what I really need is to check if this is a KDE bug or a Intel bug. Maybe some assistance with what the apply button is doing would be great, or how to debug it on the kde side.
it's mesa, upgrade to >= 7.9rc2 alternatively you can: a) suspend/resume compositing around configuring everything that looks related to the WM, or b) "export LIBGL_ALWAYS_INDIRECT=1" in ~/.xprofile (what is theoretically inferior to upgrading mesa and should be last resort or a temporary workaround only) *** This bug has been marked as a duplicate of bug 241402 ***