[Bug 59841] Internal display not shown with intel X driver

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=59841





--- Comment #9 from jkp <jkp at iki.fi>  2013-06-18 18:51:47 ---
At least one difference - with rc1 which works:

43123] [drm:intel_dp_compute_config], DP link computation with max lane count 2
max bw 0a pixel clock 138780KHz
Jun 18 21:30:38 assu kernel: [    1.843126] [drm:intel_dp_compute_config], DP
link bw 0a lane count 2 clock 270000 bpp 24
Jun 18 21:30:38 assu kernel: [    1.843127] [drm:intel_dp_compute_config], DP
link bw required 333072 available 432000
Jun 18 21:30:38 assu kernel: [    1.843128] [drm:intel_dp_compute_config],
clamping display bpc (was 24) to eDP (18)
43129] [drm:intel_modeset_pipe_config], [CRTC:3]
Jun 18 21:30:38 assu kernel: [    1.843130] [drm:intel_modeset_pipe_config],
plane bpp: 24, pipe bpp: 18, dithering: 1
Jun 18 21:30:38 assu kernel: [    1.843131] [drm:__intel_set_mode], set mode
pipe masks: modeset: 1, prepare: 1, disable: 4
Jun 18 21:30:38 assu kernel: [    1.843132] [drm:ironlake_edp_panel_vdd_on],
Turn eDP VDD on
Jun 18 21:30:38 assu kernel: [    1.843134] [drm:ironlake_edp_panel_vdd_on],
eDP VDD already on
Jun 18 21:30:38 assu kernel: [    1.843135]
[drm:intel_panel_actually_set_backlight], set backlight PWM = 0
Jun 18 21:30:38 assu kernel: [    1.843139] [drm:ironlake_edp_backlight_off], 

With rc2, fails:

[    1.442933] [drm:intel_dp_compute_config], DP link computation with max lane
count 2 max bw 0a pixel clock 138780KHz
[    1.442935] [drm:intel_dp_compute_config], DP link bw 06 lane count 2 clock
162000 bpp 18
[    1.442935] [drm:intel_dp_compute_config], DP link bw required 249804
available 259200
[    1.442937] [drm:intel_modeset_pipe_config], [CRTC:3]
[    1.442938] [drm:intel_modeset_pipe_config], plane bpp: 24, pipe bpp: 18,
dithering: 1
[    1.442938] [drm:__intel_set_mode], set mode pipe masks: modeset: 1,
prepare: 1, disable: 4
[    1.442940] [drm:ironlake_edp_panel_vdd_on], Turn eDP VDD on
[    1.442942] [drm:ironlake_edp_panel_vdd_on], eDP VDD already on
[    1.442943] [drm:intel_panel_actually_set_backlight], set backlight PWM = 0
[    1.442947] [drm:ironlake_edp_backlight_off],

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