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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [skl] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [836], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101288#c11">Comment # 11</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [skl] GPU HANG: ecode 9:0:0x85dffffb, in Xorg [836], reason: Hang on render ring, action: reset"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101288">bug 101288</a>
from <span class="vcard"><a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> <span class="fn">Imre Deak</span></a>
</span></b>
<pre>(In reply to Bjørn Mork from <a href="show_bug.cgi?id=101288#c10">comment #10</a>)
<span class="quote">> Thanks. testing now with a plain v4.16, which includes that commit AFAICS,
> and the latest i915/skl_dmc_ver1_27.bin from linux-firmware.git. Please let
> me know if I got anything wrong here:</span >
Yes, this setup should show if the fix in the newer DMC fw version could apply
to the bug you saw.
<span class="quote">> root@miraculix:/home/bjorn# dmesg |grep drm
> [ 4.624336] fb: switching to inteldrmfb from simple
> [ 4.630129] [drm] Replacing VGA console driver
> [ 4.633901] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [ 4.633924] [drm] Driver supports precise vblank timestamp query.
> [ 4.637091] [drm] Finished loading DMC firmware i915/skl_dmc_ver1_27.bin
> (v1.27)
> [ 4.704297] [drm] Initialized i915 1.6.0 20171222 for 0000:00:02.0 on
> minor 0
> [ 4.748850] fbcon: inteldrmfb (fb0) is primary device
> [ 6.232211] [drm] Reducing the compressed framebuffer size. This may lead
> to less power savings than a non-reduced-size. Try to increase stolen memory
> size if available in BIOS.
> [ 6.275291] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
>
>
> Will be back with a report in a couple of weeks. The hangs are very
> infrequent, so I consider that a minimum test period for an acceptable
> confidence level. But it does look good this far ;-)</span >
Ok, thanks.</pre>
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