Hi, > I suggest taking this upstream to https://bugs.kde.org, cause it really > sounds like an upstream bug. I will look into this. > Especially when you can create a ~/.local/share/kscreen with contents that > make a desktop session crash on login, that may help – of course it may only > crash with exactly the three monitors you have connected. Actually, it crashes every time I change the display configuration, no matter what. > So please also > install the necessary -dbg packages and try to create a backtrace. What I can provide now is this in dmesg: [14085.109351] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A [14085.109370] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun [14090.111493] kactivitymanage[24108]: segfault at 7fb50847ecd0 ip 00007fb508426031 sp 00007ffc5e1d3b48 error 4 in libQt5Sql.so.5.4.2[7fb508412000+3f000] [ 86.841807] kscreen_backend[2331]: segfault at 10 ip 00007f5fea953bd0 sp 00007ffd093cb508 error 4 in KSC_XRandR.so[7f5fea93e000+22000] [ 87.698749] ksplashqml[2280]: segfault at 8 ip 00007fe9533685a0 sp 00007ffc6aca1e38 error 4 in libQt5Gui.so.5.4.2[7fe953256000+52c000] [ 87.701634] kactivitymanage[2324]: segfault at 18 ip 00007f4538f7e910 sp 00007ffdf990aec8 error 4 in libqxcb.so[7f4538f4f000+ba000] [ 87.728423] kscreen_backend[2340]: segfault at 18 ip 00007f5df5a80b29 sp 00007fff090273a0 error 4 in libqxcb.so[7f5df5a36000+ba000] [ 87.860003] kaccess[2343]: segfault at 18 ip 00007fb2b9cb2b29 sp 00007ffced3b94d0 error 4 in libqxcb.so[7fb2b9c68000+ba000] [ 88.159947] ksmserver[2352]: segfault at 18 ip 00007f1551262b29 sp 00007ffece1b7a20 error 4 in libqxcb.so[7f1551218000+ba000] [ 92.911895] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* uncleared fifo underrun on pipe A [ 92.911963] [drm:ironlake_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun This looks like something seriously drowns ;). Also, it remotely suggests that the Intel DRM component might be involved. > > You may even report upstream by using DrKonqi. Can this report an issue that happened in the past? -nik -- PGP-Fingerprint: 3C9D 54A4 7575 C026 FB17 FD26 B79A 3C16 A0C4 F296 Dominik George · Mobil: +49-151-61623918 Teckids e.V. · FrOSCon e.V. · OpenRheinRuhr e.V. Fellowship of the FSFE · Piratenpartei Deutschland Opencaching Deutschland e.V. · Debian Contributor LPIC-3 Linux Enterprise Professional (Security)
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