Re: [BUG] i915 boot got black screen with 2.6.37-rc5+

[Maciej Rutecki]

I created a Bugzilla entry at 
https://bugzilla.kernel.org/show_bug.cgi?id=25242
for your bug report, please add your address to the CC list in there, thanks!

On Åroda, 15 grudnia 2010 o 09:33:29 Hui Zhu wrote:
> The right log with 2.6.37-rc3+:
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.569871] [drm] Initialized
> drm 1.1.0 20060810
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.882768] i915
> 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.882775] i915
> 0000:00:02.0: setting latency timer to 64
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.894778] mtrr: type
> mismatch for d0000000,10000000 old: write-back new: write-combining
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.894781] [drm] MTRR
> allocation failed. Graphics performance may suffer.
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.895367] i915
> 0000:00:02.0: irq 43 for MSI/MSI-X
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.895610] vgaarb: device
> changed decodes:
> PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.895927] [drm] initialized
> overlay support
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.981492] Console:
> switching to colour frame buffer device 210x65
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.986676] fb0: inteldrmfb
> frame buffer device
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.986678] drm: registered
> panic notifier
> Dec 15 16:13:03 teawater-workpc kernel: [ 14.986761] [drm] Initialized
> i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
> 
> The black log with 2.6.37-rc5+:
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.418419] [drm] Initialized
> drm 1.1.0 20060810
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.945240] i915
> 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.945246] i915
> 0000:00:02.0: setting latency timer to 64
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.957555] mtrr: type
> mismatch for d0000000,10000000 old: write-back new: write-combining
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.957559] [drm] MTRR
> allocation failed. Graphics performance may suffer.
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.958502] i915
> 0000:00:02.0: irq 42 for MSI/MSI-X
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.958806] vgaarb: device
> changed decodes:
> PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> Dec 15 16:10:51 teawater-workpc kernel: [ 12.959124] [drm] initialized
> overlay support
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.980020] No connectors
> reported connected with modes
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.980025] [drm] Cannot find
> any crtc or sizes - going 1024x768
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.986063] Console:
> switching to colour frame buffer device 128x48
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.988296] fb0: inteldrmfb
> frame buffer device
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.988298] drm: registered
> panic notifier
> Dec 15 16:10:51 teawater-workpc kernel: [ 13.988425] [drm] Initialized
> i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
> 
> Thanks,
> Hui
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-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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