[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Fix RC6 on SKL GT3 & GT4

Whereas this seems fixed in current 4.4 kernels as supplied by 16.04, it has returned in 4.8 kernels supplied with Yakkety Yak 16.10. It is hardly possible to keep a system running for more than half an hour in yakkety, without sudden reboot. Especially video playback triggers the problem --

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Fix RC6 on SKL GT3 & GT4

** Changed in: dri Status: Incomplete => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Fix RC6 on SKL GT3 & GT4 Status in DRI: Fix

[Kernel-packages] [Bug 1564759]

Nevermind, I compiled a binary and my whole computer froze -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Fix RC6 on SKL GT3 & GT4 Status in DRI: Fix

[Kernel-packages] [Bug 1564759]

I just used the patch on 4.6-rc4 from upstream source and it works for me! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Fix RC6 on SKL GT3 & GT4 Status in

[Kernel-packages] [Bug 1564759]

This fixed by, commit d528a6a0f3fd346bd7cc2de611a4149b6ebaab41 Author: Mika Kuoppala Date: Tue Apr 5 15:56:16 2016 +0300 drm/i915/skl: Fix rc6 based gpu/system hang -- You received this bug notification because you are a member of Kernel Packages, which is

[Kernel-packages] [Bug 1564759]

I can confirm that the patch in comment 28 (Use WaRsDisableCoarsePowerGating) solved the issue on my Intel NUC6i5 with only a moderate increase in power consumption. With an idle desktop using kernel 4.6.0-rc3, the system consumes: 7 Watts without patch, RC6 enabled, frequent crashes 17 Watts

[Kernel-packages] [Bug 1564759]

Compiled kernel 4.6 rc2 drm-intel-nightly with the Mika patch (comment #28) and everything is working fine, no gpu hang at the moment (4 days testing). Why this patch is not merged? Maybe because needs more testing? Thanks Mika. -- You received this bug notification because you are a member of

[Kernel-packages] [Bug 1564759]

Created attachment 122856 attachment-11432-0.html As far as I understand, the patch disables power gating which is a very bad thing in terms of power usage so this is not a fix, just a temp workaround. On 10 Apr 2016 14:32, wrote: > *Comment # 35

[Kernel-packages] [Bug 1564759]

(In reply to miticotoby from comment #32) > Tested as Timo using #28 plus #5 from 93491. seems to fix the issue for me > too. has been stable for a few hours now without disabling rc6 seconding miticotoby. applied #28 plus #5 from 93491 working fine for few days now. (without disabling rc6) --

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Fix RC6 on SKL GT3 & GT4

This bug was fixed in the package linux - 4.4.0-18.34 --- linux (4.4.0-18.34) xenial; urgency=low [ Tim Gardner ] * Release Tracking Bug - LP: #1566868 * [i915_bpo] Fix RC6 on SKL GT3 & GT4 (LP: #1564759) - SAUCE: i915_bpo: drm/i915/skl: Fix rc6 based gpu/system hang

[Kernel-packages] [Bug 1564759]

Note that I notice sluggishness (my 3y old intel 2D graphics - and CPU rendered graphics on this computer are faster) and display freezes with the fix and DRM enalbed, though this might need a separate bug (not sure if its related or just another bug) -- You received this bug notification

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Fix RC6 on SKL GT3 & GT4

** Changed in: linux (Ubuntu Xenial) Status: Triaged => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Fix RC6 on SKL GT3 & GT4 Status in

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Fix RC6 on SKL GT3 & GT4

** Summary changed: - [i915_bpo] Disable RC6 on SKL GT3 & GT4 + [i915_bpo] Fix RC6 on SKL GT3 & GT4 ** Description changed: Runtime power management causes GPU hangs on SKL GT3 & GT4 ("Iris" & - "Iris Pro"), so disable it until the bug(s) are fixed. + "Iris Pro"), so fix it by adding two

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Disable RC6 on SKL GT3 & GT4

** Changed in: dri Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Disable RC6 on SKL GT3 & GT4 Status in DRI:

[Kernel-packages] [Bug 1564759]

I heard this might be due to old bios, which my system certainly has.. so verify you have the latest from the vendor (mine is from intel, and no updates available for test hw, so..) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in

[Kernel-packages] [Bug 1564759]

Negative on #24. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Disable RC6 on SKL GT3 & GT4 Status in DRI: Incomplete Status in linux package in Ubuntu:

[Kernel-packages] [Bug 1564759]

#28 plus #5 from 93491 seem to have fixed glmark2 here, could be that #28 alone would be enough but doesn't hurt to test with both.. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759

[Kernel-packages] [Bug 1564759]

#24 didn't fix it for me -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Disable RC6 on SKL GT3 & GT4 Status in DRI: Incomplete Status in linux package in

[Kernel-packages] [Bug 1564759]

I'm running patch from comment 28 over the mainline kernel (4.6rc1) No freeze/crash so far even when i stress test it. Thanks Mika! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759

[Kernel-packages] [Bug 1564759]

Tested as Timo using #28 plus #5 from 93491. seems to fix the issue for me too. has been stable for a few hours now without disabling rc6 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu.

[Kernel-packages] [Bug 1564759]

Created attachment 122661 drm/i915/skl: Use WaForceContextSaveRestoreNonCoherent for all revs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Disable RC6 on SKL

[Kernel-packages] [Bug 1564759]

Created attachment 122664 drm/i915/skl: Use WaRsDisableCoarsePowerGating for all revs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1564759 Title: [i915_bpo] Disable RC6 on SKL GT3 &

[Kernel-packages] [Bug 1564759]

(In reply to Timo Aaltonen from comment #27) > I heard this might be due to old bios, which my system certainly has.. so > verify you have the latest from the vendor I've got a Skylake Dell XPS 13 9350 with the very latest bios from a couple days ago (1.3.3), and the bug still happens on this

[Kernel-packages] [Bug 1564759]

I can confirm this issue on a Intel NUC6i5SYH, Iris Graphics 540 with kernel 4.4.6-300.fc23.x86_64 (exact same symptoms, logs ...). I bet a whole lot of people must be affected ... Is this driver supported by Intel themselves or the community? -- You received this bug notification because you

[Kernel-packages] [Bug 1564759] Re: [i915_bpo] Disable RC6 on SKL GT3 & GT4

Launchpad has imported 23 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=94161. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at

[Kernel-packages] [Bug 1564759] [NEW] [i915_bpo] Disable RC6 on SKL GT3 & GT4

Public bug reported: Runtime power management causes GPU hangs on SKL GT3 & GT4 ("Iris" & "Iris Pro"), so disable it until the bug(s) are fixed. ** Affects: dri Importance: Unknown Status: Unknown ** Affects: linux (Ubuntu) Importance: High Assignee: Timo Aaltonen