[Bug 94529] Skylake GPU hangs with kernel oops when 3D acceleration is used

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94529

yann <yann.argotti at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #2 from yann <yann.argotti at intel.com> ---
(In reply to chais.z3r0 from comment #0)
> Created attachment 122273 [details]
> Kernel Oops
> 
> For quite some time now I've been struggling to get stable hardware
> acceleration from my Core i5 6600K. I'm running Arch on an MSI Z170A GAMING
> M7 mainboard.
> Whenever I try to use hardware acceleration on the IGD (chromium, glxgears)
> the display will just freeze. I can still log in remotely and the machine
> works fine otherwise. dmesg will contain an oops like the one attaached.
> 
> I had this working briefly with 4.4.3, but after the first hang downgrading
> wouldn't help either.
> My current /proc/cmdline:
> 
> initrd=/initramfs-linux.img initrd=/intel-ucode.img rw <luks-setup>
> root=/dev/mapper/e1
> rootflags=subvol=root,device=/dev/mapper/e1,device=/dev/mapper/e2,
> compress=lzo intel_iommu=on intel_iommu=igfx_off
> i915.preliminary_hw_support=1
> 
> The preliminary_hw_support is what made things work with 4.4.3.
> 
> As suggested by https://wiki.archlinux.org/index.php/Intel_graphics I tried
> booting with i915.enable_rc6=0 but without success. Also
> i915.enable_execlists=0 or switching to uxa acceleration didn't help. So far
> the only thing that reliably lets me use the machine is disabling DRI. But
> since that forces me to move the mouse for the screen to refresh at all
> that's not really an option. Watching movies while constantly jiggling the
> mouse is more than just tedious.
> I can't find any related errors in the Xorg log.

Can you upgrade your kernel and confirm if this is still occurring or not.
There are skl workarounds that could benefits to you.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160905/ae75b017/attachment.html>