[Bug 87171] 3.18: i855GM KMS regression

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87171

--- Comment #3 from Bruno <bonbons67 at internet.lu> ---
Kernel log extract, with 3.18:
[    0.893782] Linux agpgart interface v0.103
[    0.893893] agpgart-intel 0000:00:00.0: Intel 855GM Chipset
[    0.893960] agpgart-intel 0000:00:00.0: detected gtt size: 131072K total,
131072K mappable
[    0.894634] agpgart-intel 0000:00:00.0: detected 32768K stolen memory
[    0.894992] agpgart-intel 0000:00:00.0: AGP aperture is 128M @ 0xe8000000
[    0.895201] [drm] Initialized drm 1.1.0 20060810
[    0.897913] [drm] Memory usable by graphics device = 128M
[    0.897973] [drm] Replacing VGA console driver
[    0.898927] Console: switching to colour dummy device 80x25
[    0.901093] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.901109] [drm] Driver supports precise vblank timestamp query.
[    0.901357] vgaarb: device changed decodes:
PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
[    0.990220] [drm] GMBUS [i915 gmbus panel] timed out, falling back to bit
banging on pin 3
[    1.020916] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    1.047516] [drm] initialized overlay support
[    1.047632] [drm] Initialized i915 1.6.0 20140905 for 0000:00:02.0 on minor
0
[    1.100281] [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit
banging on pin 2
[    1.121264] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    1.200224] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit
banging on pin 5
[    1.215077] fbcon: inteldrmfb (fb0) is primary device
[    1.810166] Console: switching to colour frame buffer device 175x65
[    1.820984] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    1.821053] i915 0000:00:02.0: registered panic notifier
[  122.817020] [drm:i9xx_check_fifo_underruns] *ERROR* pipe B underrun
[  122.831035] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  155.129274] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  432.772681] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  498.863614] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  524.688752] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  526.163628] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  543.921330] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  545.472861] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  562.710908] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  565.496726] [drm:i9xx_check_fifo_underruns] *ERROR* pipe B underrun
[  565.510848] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[  624.522935] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe B underrun

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