<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [ILK] GPU hung with h.264 video decoding" href="https://bugs.freedesktop.org/show_bug.cgi?id=71432#c19">Comment # 19</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO --- - [ILK] GPU hung with h.264 video decoding" href="https://bugs.freedesktop.org/show_bug.cgi?id=71432">bug 71432</a> from <a class="email" href="mailto:hamer.mk@gmail.com" title="Mihail Kasadjikov <hamer.mk@gmail.com>"> Mihail Kasadjikov</a> <pre>I found and removed the «semaphores=0» from «/etc/modprobe.d/options.conf». It was added as a workaround according to <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED --- - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="show_bug.cgi?id=54226">bug #54226</a>. Right now I have no any parameters for i915 kernel module $ cat /proc/cmdline root=/dev/mapper/h13ssd-root ro ipv6.disable=1 elevator=deadline no_console_suspend=1 pcie_aspm=powersave video=inteldrmfb:1280x800R-8 quiet intel_iommu=igfx_off resume=/dev/mapper/h13ssd-swap zswap.enabled=1 But after some videos on youtube using flashplayer I've got the «Hangcheck timer elapsed» without overall system hung: $ dmesg | grep Hang [ 4121.662268] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... bsd ring idle It is interesting but after this message in dmesg and little pause in video playback, the other videos on YT are playing with HW decoder normally and without errors for long time... And this, after message in dmesg: # cat /sys/kernel/debug/dri/0/i915_error_state no error state collected</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>