[Bug 111047] On IceLake machine GPU can't enter DC6
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Wed Jul 3 08:46:20 UTC 2019
https://bugs.freedesktop.org/show_bug.cgi?id=111047
--- Comment #1 from Cooper Chiou <cooper.chiou at intel.com> ---
>From drm log, I can see DC6 is enabled.
Jul 3 16:01:45 u-xxxx kernel: [ 17.967382] [drm:edp_panel_vdd_off_sync
[i915]] Turning eDP port A VDD off
Jul 3 16:01:45 u-xxxx kernel: [ 17.967519] [drm:edp_panel_vdd_off_sync
[i915]] PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067
Jul 3 16:01:45 u-xxxx kernel: [ 17.967563] [drm:intel_power_well_disable
[i915]] disabling DC off
Jul 3 16:01:45 u-xxxx kernel: [ 17.967610] [drm:skl_enable_dc6 [i915]]
Enabling DC6
Jul 3 16:01:45 u-xxxx kernel: [ 17.967650] [drm:gen9_set_dc_state [i915]]
Setting DC state from 00 to 02
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