Re: Info: mapping multiple BARs. Your kernel is fine.

Dave Jones
2014-04-17T20:53:55Z

On Thu, Apr 17, 2014 at 04:03:52PM -0400, Dave Jones wrote:
> On Thu, Apr 17, 2014 at 10:01:27PM +0200, Borislav Petkov wrote:
> > On Thu, Apr 17, 2014 at 03:52:40PM -0400, Dave Jones wrote:
> > > Just as X starts up, I see this in dmesg..
> > >
> > > [ 42.879049] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun
> >
> > FWIW, I have that too. It should be something i915-related:
> >
> > [ 0.617673] [drm] Memory usable by graphics device = 2048M
> > [ 0.694445] i915 0000:00:02.0: irq 42 for MSI/MSI-X
> > [ 0.694549] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> > [ 0.694631] [drm] Driver supports precise vblank timestamp query.
> > [ 0.695313] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> > [ 0.788300] [drm] GMBUS [i915 gmbus dpb] timed out, falling back to bit banging on pin 5
> > [ 0.799829] fbcon: inteldrmfb (fb0) is primary device
> > [ 1.176845] [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun
>
> Can you send me your .config off-list ?
> I wonder if this is something config specific that's causing me to see
> this, and you not, given we've apparently got similar machines.

ok, with your config I get back to a console after the modesetting
switch, but then it hangs in USB init.

Hrmm.

Dave