Created attachment 121387 [details] dmesg_dc-status Setup: ====== Platform: Broxton P A0 Platform CPU Name : Intel(R) @ 1.2 GHz (family: 6, model: 92, stepping: 8) – 4 cores SoC : BROXTON-P A0 CRB : Apollo Lake RVPC1 Fab1 Reworks : R14, R06C and R16 Software: ========= BIOS (IFWI Version): APLK_IFWI_X64_R_2015_41_5_02 KSC : 1.02 Linux distribution: Ubuntu 15.10 64 bits Kernel: drm-intel-nightly 4.4.0 8114b00 from http://cgit.freedesktop.org/drm-intel/ drm: tag libdrm-2.4.66 e342c0f from http://cgit.freedesktop.org/mesa/drm/ mesa: tag mesa-11.0.8 261daab from http://cgit.freedesktop.org/mesa/mesa/ cairo: tag 1.15.2 db8a7f1 from http://cgit.freedesktop.org/cairo waffle: master bb29b2a from https://github.com/waffle-gl/waffle xorg-server-macros: master d7acec2 from git://git.freedesktop.org/git/xorg/util/macros libva: tag libva-1.6.1 cb418f6 from http://cgit.freedesktop.org/libva/ vaapi-intel-driver: tag 1.6.1 2110b3a from http://cgit.freedesktop.org/vaapi/intel-driver Steps: ------ 1. Boot in text mode 2. Let the system idle 3. Execute command: dmesg |grep DC Actual result: --------------- 3. Command returns: [ 0.785079] [drm:intel_power_well_enable] enabling DC off [ 0.785080] [drm:gen9_set_dc_state] Setting DC state from 00 to 00 [ 0.785083] [drm:gen9_set_dc_state] Setting DC state from 00 to 00 Expected result: ---------------- 3 Log shows DC6 status: [enable_dc6] Enabling DC6 Info: ----- I was able to see DC9 status
DMC used: https://01.org/linuxgraphics/downloads/broxton-dmc-1.06
Reproduced with all PM options activated in Bios (S0ix, Cx, PCx, Render C6, GT PM ...)
(In reply to cprigent from comment #2) > Reproduced with all PM options activated in Bios (S0ix, Cx, PCx, Render C6, > GT PM ...) Runtime PM disabled atm on BXT due to stability issues. We will re-enable it once these problems are fixed.
Let's close it as not a bug. It will be tested again.
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