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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [guc/huc] Deep Package C-states never reached after laptop screen is turned off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111594#c16">Comment # 16</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [guc/huc] Deep Package C-states never reached after laptop screen is turned off"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111594">bug 111594</a>
from <span class="vcard"><a class="email" href="mailto:kitestramuort@autistici.org" title="kitestramuort@autistici.org">kitestramuort@autistici.org</a>
</span></b>
<pre>i915 is compiled in, along with the required firmware.
Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 0.264710] [drm] HuC: Loaded firmware i915/kbl_huc_ver02_00_1810.bin
(version 2.0)
[ 0.276705] [drm] GuC: Loaded firmware i915/kbl_guc_32.0.3.bin (version
32.0)
[ 0.284788] [drm] CT: enabled
[ 0.305613] [drm] Initialized i915 1.6.0 20190619 for 0000:00:02.0 on minor
0
# turbostat --quiet --show CPU%c7,GFX%rc6,Totl%C0,Any%C0,GFX%C0 sleep 10
10.004035 sec
CPU%c7 GFX%rc6 Totl%C0 Any%C0 GFX%C0
96.69 99.06 4.74 4.13 0.32
95.04 99.06 4.74 4.13 0.32
97.03
97.29
97.41
# rtcwake -s 30 -m disk
# turbostat --quiet --show CPU%c7,GFX%rc6,Totl%C0,Any%C0,GFX%C0 sleep 10
10.002372 sec
CPU%c7 GFX%rc6 Totl%C0 Any%C0 GFX%C0
96.35 5.20 7.43 6.78 80.83
91.77 5.20 7.43 6.78 80.83
99.09
96.83
97.71
The dreadful 5.20...
After that...
# turbostat --show Pkg%pc8
Pkg%pc8
0.00
0.00</pre>
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