Am 29.05.2012 22:45, schrieb Roberto Ragusa: > On 05/27/2012 07:54 PM, Reindl Harald wrote: >> Hi >> >> i notice growing problems on F16 with "Intel Sandy Bridge" graphics >> >> * desktop effects in KDE partly not working (3D cube as example) >> this worked well over months after upgrade from F14 to F15 and >> >> * sometimes the whole desktop hangs with display errors >> like missing parts of windows solveable mostly by logout >> but sometimes resulting in a complete system hang > > This happened to me too. > Apparently in normal situations (scrolling a window, ...), I was almost > suspecting a hardware bug. definitly no hardware problem the follwoing params making things better and stop especially the lags most of the time, but on the same machine over a long time was set to "pcie_aspm=force" and all i915 option at 1 "pcie_aspm=off i915.i915_enable_rc6=0 i915.semaphores=0 i915.i915_enable_fbc=0" i think i have to mention taht VT-d is active in the BIOS and i was wondering that it was stable because the combination of the i915 options with VT-d (hardware supported virtualization IO) is classified to be unstable >> * lags while starting applications or activate windows >> of running apps > > Long lag (>5 seconds) while starting LibreOffice yes, libreoffice is a majonr candidate for lags at startup > the window is frozen > at half-transparency while appearing and nothing else updates > (clock is stuck). exactly the same happening here on two different machines with ident hardware > Fully updated x86_64 F16. > Nothing logged by the kernel. here too > It surely happened with more than one kernel: last time was today with > 3.3.6-3.fc16.x86_64. correct, but as said i see currently no way to figure out what kernel started to introduce this and even if maybe all of the F16 kernels are affected - dist-upgrade some months ago > 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) welcome on board :-) Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
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