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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - No package C-states on Dell XPS 15 9570 after resume from deep sleep"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111623#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - No package C-states on Dell XPS 15 9570 after resume from deep sleep"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111623">bug 111623</a>
from <span class="vcard"><a class="email" href="mailto:don.hiatt@intel.com" title="Don Hiatt <don.hiatt@intel.com>"> <span class="fn">Don Hiatt</span></a>
</span></b>
<pre>(In reply to Tomas Janousek from <a href="show_bug.cgi?id=111623#c20">comment #20</a>)
<span class="quote">> Turns out I can reproduce this with i915/kbl_guc_ver9_39.bin +
> i915/kbl_huc_ver02_00_1810.bin...
>
> Anyway, it seems that on this Kaby Lake system, loading HuC without GuC
> submission leads to the GPU not entering rc6 and thus keeping the package
> out of C-states. Obviously then it doesn't matter what GuC version it is, be
> it 9.39 or 32.0.3 or whatever.</span >
Pretty much what I concluded, I just posted this for review, can you give it a
try? Thanks.
<a href="https://patchwork.freedesktop.org/patch/337552/">https://patchwork.freedesktop.org/patch/337552/</a></pre>
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