[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Thu May 14 12:45:04 PDT 2015
https://bugs.freedesktop.org/show_bug.cgi?id=73530
--- Comment #96 from Nicolas Werner <nicolas.werner at ymail.com> ---
(In reply to Alex Deucher from comment #95)
> Created attachment 115780 [details] [review]
> add some debugging output
>
> Can you attach the dmesg output with the attached patch?
Seems like we're getting somewhere, looks like a bad pointer?
[ 5.645981] [drm] radeon_dp_getdpcd
[ 5.645988] [drm] dig_connector ffff8802a21c42c0
[ 5.645991] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[ 5.677325] [drm] fb mappable at 0xD047B000
[ 5.677330] [drm] vram apper at 0xD0000000
[ 5.677332] [drm] size 8294400
[ 5.677335] [drm] fb depth is 24
[ 5.677337] [drm] pitch is 7680
[ 5.677542] fbcon: radeondrmfb (fb0) is primary device
[ 5.677635] [drm:radeon_dp_set_link_config] *ERROR* corrupt dpcd, updating
[ 5.678223] [drm] radeon_dp_set_link_config, 540000, 1
[ 5.678224] [drm] dig_connector ffff8802a21c42a0
[ 5.678225] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 6.818832] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[ 6.819418] [drm] radeon_dp_set_rx_power_state, 0
[ 6.819420] [drm] dig_connector ffff8802a21c42a0
[ 6.819421] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 7.953814] [drm:radeon_dp_link_train] *ERROR* corrupt dpcd, updating
[ 7.954642] [drm] radeon_dp_link_train
[ 7.954644] [drm] dig_connector ffff8802a21c42a0
[ 7.954645] [drm] DPCD: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 7.954646] [drm] dp_info dpcd: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 7.954647] [drm:radeon_dp_set_rx_power_state] *ERROR* corrupt dpcd,
updating
[ 7.954950] [drm] radeon_dp_getdpcd
[ 7.954951] [drm] dig_connector ffff8802a21c42a0
[ 7.954952] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[ 7.954954] [drm] radeon_dp_set_rx_power_state, 17
[ 7.954955] [drm] dig_connector ffff8802a21c42a0
[ 7.954956] [drm] DPCD: 11 0a 02 00 00 00 00 00 00 00 00 00 00 00 00
[ 7.962990] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery tried 5
times
[ 7.962991] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed
[ 8.361691] radeon 0000:00:01.0: fb0: radeondrmfb frame buffer device
[ 8.390386] [drm] Initialized radeon 2.40.0 20080528 for 0000:00:01.0 on
minor 0
[ 10.548765] [drm] radeon_dp_getdpcd
[ 10.548773] [drm] dig_connector ffff8802a21c42c0
[ 10.548777] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[ 10.579288] [drm] radeon_dp_getdpcd
[ 10.579297] [drm] dig_connector ffff8802a21c42c0
[ 10.579300] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[ 10.638418] [drm] radeon_dp_getdpcd
[ 10.638425] [drm] dig_connector ffff8802a21c42c0
[ 10.638428] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
[ 10.667255] [drm] radeon_dp_getdpcd
[ 10.667263] [drm] dig_connector ffff8802a21c42c0
[ 10.667267] [drm] DPCD: 11 0a 84 01 00 0b 01 01 02 00 00 00 00 00 00
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