[Bug 111088] [SLK] Screen freezes with PSR enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111088

--- Comment #11 from François Guerraz <kubrick at fgv6.net> ---
In case that's still helpful:

# cat /sys/kernel/debug/dri/0/i915_display_info
CRTC info
---------
CRTC 48: pipe: A, active=yes, (size=3200x1800), dither=no, bpp=24
        fb: 87, pos: 0x0, size: 3200x1800
        encoder 85: type: DDI A, connectors:
                connector 86: type: eDP-1, status: connected, mode:
                "3200x1800": 60 373250 3200 3248 3280 3360 1800 1803 1808 1852
0x48 0xa
        cursor visible? yes, position (450, 1196), size 256x256, addr
0x077c0000
        num_scalers=2, scaler_users=0 scaler_id=-1, scalers[0]: use=no, mode=0,
scalers[1]: use=no, mode=0
        --Plane id 31: type=PRI, crtc_pos=   0x   0, crtc_size=3200x1800,
src_pos=0.0000x0.0000, src_size=3200.0000x1800.0000, format=XR24 little-endian
(0x34325258), rotation=0 (0x00000001)
        --Plane id 38: type=OVL, crtc_pos=   0x   0, crtc_size=   0x   0,
src_pos=0.0000x0.0000, src_size=0.0000x0.0000, format=N/A, rotation=0
(0x00000001)
        --Plane id 45: type=CUR, crtc_pos= 450x1196, crtc_size= 256x 256,
src_pos=0.0000x0.0000, src_size=256.0000x256.0000, format=AR24 little-endian
(0x34325241), rotation=0 (0x00000001)
        underrun reporting: cpu=yes pch=yes 
CRTC 66: pipe: B, active=no, (size=1920x1080), dither=no, bpp=24
        underrun reporting: cpu=yes pch=yes 
CRTC 84: pipe: C, active=no, (size=0x0), dither=no, bpp=0
        underrun reporting: cpu=yes pch=yes 

Connector info
--------------
connector 86: type eDP-1, status: connected
        physical dimensions: 290x170mm
        subpixel order: Unknown
        CEA rev: 0
        DPCD rev: 12
        audio support: no
        fixed mode:
                "3200x1800": 60 373250 3200 3248 3280 3360 1800 1803 1808 1852
0x48 0xa
        DP branch device present: no
        modes:
                "3200x1800": 60 373250 3200 3248 3280 3360 1800 1803 1808 1852
0x48 0xa
                "3200x1800": 48 298600 3200 3248 3280 3360 1800 1803 1808 1852
0x40 0xa
connector 92: type DP-1, status: disconnected
connector 99: type HDMI-A-1, status: disconnected
connector 105: type DP-2, status: disconnected
connector 110: type HDMI-A-2, status: disconnected

# cat /sys/kernel/debug/dri/0/i915_edp_psr_status
Sink support: yes [0x01]
PSR mode: PSR1 enabled
Source PSR ctl: enabled [0x81f00626]
Source PSR status: IDLE [0x04050006]
Busy frontbuffer bits: 0x00000000

# cat /sys/kernel/debug/dri/0/i915_dmc_info
fw loaded: yes
path: i915/skl_dmc_ver1_27.bin
version: 1.27
DC3 -> DC5 count: 6
DC5 -> DC6 count: 0
program base: 0x09004040
ssp base: 0x00002fc0
htp: 0x00b40068

# cat /sys/kernel/debug/dri/0/eDP-1/i915_psr_sink_status
Sink PSR status: 0x2 [active, display from RFB]

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