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<body><span class="vcard"><a class="email" href="mailto:kai.vehmanen@intel.com" title="Kai Vehmanen <kai.vehmanen@intel.com>"> <span class="fn">Kai Vehmanen</span></a>
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<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI][BAT] igt@i915_module_load@reload - timeout - Unable to sync register 0x2f8100"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111214">bug 111214</a>
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<td>kai.vehmanen@intel.com
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI][BAT] igt@i915_module_load@reload - timeout - Unable to sync register 0x2f8100"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111214#c18">Comment # 18</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [CI][BAT] igt@i915_module_load@reload - timeout - Unable to sync register 0x2f8100"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111214">bug 111214</a>
from <span class="vcard"><a class="email" href="mailto:kai.vehmanen@intel.com" title="Kai Vehmanen <kai.vehmanen@intel.com>"> <span class="fn">Kai Vehmanen</span></a>
</span></b>
<pre>(In reply to Cezary Rojewski from <a href="show_bug.cgi?id=111214#c4">comment #4</a>)
<span class="quote">> Problem seems to exist since SKL and isn't strictly tied to ICL. The only
> reason it is visible now, is probably of yet another issue present for ICL
> platforms. We need to fix the root cause though. GFX guys must be engaged
> and comment on this.</span >
This seems to be the case. I'm debugging this with SOF audio driver and it
seems to match this description:
"[ICL] occasional display audio codec probe failure - fail to get afg sub
nodes"
<a href="https://github.com/thesofproject/linux/issues/1184">https://github.com/thesofproject/linux/issues/1184</a>
The reproduction rate goes up when an arbitrary delay is added between display
probe and i915 audio component setup. Bug is fixed if i915 power domains are
kept up during the whole sequence. Latest analysis in comment:
<a href="https://github.com/thesofproject/linux/issues/1184#issuecomment-532765982">https://github.com/thesofproject/linux/issues/1184#issuecomment-532765982</a></pre>
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