Created attachment 108906 [details] 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
Created attachment 108907 [details] dmesg
Can you try with /etc/X11/xorg.conf.d/intel.conf: Section "Device" Identifier "igfx" Option "DRI" "2" EndSection
Thanks, but no effect. The underrun messages appear very early in the boot, so it appear that things go awry quickly.
Ok, I was hoping that the underruns would be transient, and you just had an easy userspace issue to fix... Next up is a drm.debug=6 dmesg.
Created attachment 108920 [details] dmesg drm.debug=6
Is this a regression somehow? We've had i855gm support since ages ...
Yeah, this used to work fine back in the Fedora 17 days. Unfortunately I don't know when this broke as the machine was not in use for a while.
Fedora 3.17 is about kernel 3.0. So you could just grab that one and double-check it works, then start the bisect. Becuase bisect only takes log(num_commits) test points it will not take much longer than bisecting just one kernel release (14 tests usually for one kernel release, 4-5 more for 3.0 till today).
Timing out on this one. Please re-open with bisect results if this is still an issue.
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