[Bug 85865] New: [855GM] i915 black screen on LVDS

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85865

            Bug ID: 85865
           Summary: [855GM] i915 black screen on LVDS
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: orion at cora.nwra.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 108906
  --> https://bugs.freedesktop.org/attachment.cgi?id=108906&action=edit
Xorg.0.log

Dell Latitude X300.  On startup, X vt is completely black, no cursor.

3.17.2-300.fc21.i686
xorg-x11-drv-intel-2.99.916-2.fc21.i686
mesa-dri-drivers-10.3-1.20140927.fc21.i686

00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated
Graphics Device (rev 02) (prog-if 00 [VGA controller])
        Subsystem: Dell Latitude X300
        Flags: bus master, fast devsel, latency 0, IRQ 10
        Memory at e8000000 (32-bit, prefetchable) [size=128M]
        Memory at e0000000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at 1800 [size=8]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [d0] Power Management version 1
        Kernel driver in use: i915
        Kernel modules: i915

# dmesg | grep drm
[    2.882322] [drm] Initialized drm 1.1.0 20060810
[    3.316536] [drm] Memory usable by graphics device = 128M
[    3.316544] [drm] Replacing VGA console driver
[    3.320973] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    3.320981] [drm] Driver supports precise vblank timestamp query.
[    3.386614] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    3.404587] [drm] initialized overlay support
[    3.448627] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    3.484557] fbcon: inteldrmfb (fb0) is primary device
[    4.204177] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    4.204795] [drm] Initialized i915 1.6.0 20140725 for 0000:00:02.0 on minor
0
[    4.273772] [drm:i9xx_check_fifo_underruns] *ERROR* pipe B underrun
[    4.314672] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    4.359447] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[    6.576672] SELinux: initialized (dev drm, type drm), not configured for
labeling
[   61.106599] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[   61.150541] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[   65.267186] [drm:i9xx_set_fifo_underrun_reporting] *ERROR* pipe A underrun
[   65.267197] [drm:i8xx_irq_handler] *ERROR* pipe A underrun
[   65.333986] [drm:i8xx_irq_handler] *ERROR* pipe A underrun

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