(In reply to Chris Wilson from comment #226) > (In reply to Martin Steigerwald from comment #225) > > Chris, you referred me to this bug as I reported > > > > Bug 90835 - [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? > > There's likely a modest improvement in 4.2.
Nice. > > 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 > > Fortuitously that dangerous option doesn't do anything for your kernel. Well I found out why, I compiled i915 into the kernel it seems, at least I don´t have an i915 module in lsmod. But also i915.i915_enable_rc6=7 on kernel command line does not seem to have any effect. I removed the option. > > ffffffff813a4b0e > > 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. > > Purely circumstantial. Since using SNA I didn´t see a GPU hang so far. Too early to say for sure, but it seems something in UXA may have triggered it more easily. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1041790 Title: [snb] GPU lockup IPEHR: 0x0b160001 IPEHR: 0x0b140001, workaround i915.semaphores=0 To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1041790/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
