<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226#c225">Comment # 225</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)" href="https://bugs.freedesktop.org/show_bug.cgi?id=54226">bug 54226</a> from <a class="email" href="mailto:Martin@Lichtvoll.de" title="Martin Steigerwald <Martin@Lichtvoll.de>"> Martin Steigerwald</a> <pre>Chris, you referred me to this bug as I reported <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED DUPLICATE - [4.1-rc6] gpu hang: ecode 6:-1:0x00000000, Kicking stuck semaphore on render ring" href="show_bug.cgi?id=90835">Bug 90835</a> - [4.1-rc6] gpu hang: ecode 6:-1:0x00000000, Kicking stuck semaphore on render ring I skimmed through it and it appears that there are some patches to test? But I am not sure which ones these are. Can you or someone else enlighten me? Also I note that I still use Option "AccelMethod" "uxa" and I have martin@merkaba:~> cat /etc/modprobe.d/i915-kms.conf options i915 modeset=1 i915_enable_rc6=7 thus maximum energy saving. But according to powertop it never enters the highest sleep state anyway. I will remove the AccelMethod setting now and see whether it helps. If not, I downgrade to 4.1-rc4 for now, as issues have been at least much less frequent with it. And its really that for me 4.1-rc6 makes things much *worse*. I am typing this after a clean reboot and already got the GPU hang again. It happens about every few minutes. Are you really sure this is the same GPU hang? I didn´t have this before 4.1 kernel?</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>