2014-05-16 13:53 GMT+02:00 Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>: > On Tue, May 13, 2014 at 06:38:32PM +0200, Daniel Vetter wrote: >> On Tue, May 13, 2014 at 05:21:49PM +0200, Jörg Otte wrote: >> > 2014-05-13 15:22 GMT+02:00 Daniel Vetter <daniel@xxxxxxxx>: >> > > On Tue, May 13, 2014 at 12:38:41PM +0200, Daniel Vetter wrote: >> > >> On Tue, May 13, 2014 at 12:29 PM, Jörg Otte <jrg.otte@xxxxxxxxx> wrote: >> > >> >>> Branch drm-intel-nightly as of >> > >> >>> ed60c27 drm-intel-nightly: 2014y-05m-09d-21h-51m-45s integration manifest >> > >> >>> looks badly: >> > >> >>> - KDE splash screen on boot-up is not visible >> > >> >>> - x-windows don't have title and menu bars >> > >> >>> - KDE system menu is not visible >> > >> >>> - moving windows around destroys its content >> > >> >> >> > >> >> Ugh, that's ugly. Nothing else change like e.g. the version of >> > >> >> xfree-video-intel? >> > >> > >> > >> > (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so >> > >> > (II) Module intel: vendor="X.Org Foundation" >> > >> > compiled for 1.11.3, module version = 2.17.0 >> > >> > Module class: X.Org Video Driver >> > >> > ABI class: X.Org Video Driver, version 11.0 >> > >> >> > >> Chris, any ideas? It's an ivybridge apparently. >> > >> >> > >> For the fifo underruns I think we've fully confirmed that they only >> > >> happen on boot-up. I'll try to come up with some ideas what could have >> > >> gone wrong there. >> > > >> > > Please test the below patch. >> > > -Daniel >> > > >> > > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c >> > > index b10fbde1d5ee..63ced2dee027 100644 >> > > --- a/drivers/gpu/drm/i915/i915_irq.c >> > > +++ b/drivers/gpu/drm/i915/i915_irq.c >> > > @@ -427,9 +427,6 @@ bool __intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev, >> > > >> > > ret = !intel_crtc->cpu_fifo_underrun_disabled; >> > > >> > > - if (enable == ret) >> > > - goto done; >> > > - >> > > intel_crtc->cpu_fifo_underrun_disabled = !enable; >> > > >> > > if (enable && (INTEL_INFO(dev)->gen < 5 || IS_VALLEYVIEW(dev))) >> > > @@ -441,7 +438,6 @@ bool __intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev, >> > > else if (IS_GEN8(dev)) >> > > broadwell_set_fifo_underrun_reporting(dev, pipe, enable); >> > > >> > > -done: >> > > return ret; >> > > } >> > > >> > > -- >> > >> > Doesn't work for me, I still have an underrun at boot-up. >> >> I'm at a loss tbh with ideas. We successfully disable both pipes, then >> enable pipe A and it all works. >> >> Then we enable pipe B and _both_ pipes underrun immediately afterwards. >> Really strange. Can you please reproduce the issue again on >> drm-intel-nightly (latest -nightly should also have the display >> corruptions fixed, so good to retest anyway) and attach a new dmesg with >> drm.debug=0xe. > > I see a few underrun on my IVB as well. But it seems to be limited to > cases that involve the VGA connector, which doesn't actually exist on > this machine so I can't be sure if it's really properly set up on the > PCH. But so far with just two HDMI connectors I was unable to reproduce > it. > >> >> Meanwhile I'll try to come up with new theories and ideas. > > I was thinking that we might frob with the PCH refclk during driver init > and that might cause the PCH underrun for Jörg, but it looks like the > underruns really happen at the modeset time which is much later than the > PCH refclock init. > > For the 1<->n pipe transition, I don't think we handle it correctly at > the moment. I have a fix as part of my remaining watermark patches. I > rebased those and I'll repost them soon. In the meantime I pushed them > to [1]. Jörg, can you give that branch a go? > > [1] git://gitorious.org/vsyrjala/linux.git watermarks_intm_31_notrace > Unfortunately not working for me. It gives me some more errors: [drm:ivybridge_set_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on pipe A [drm:ivb_err_int_handler] *ERROR* Pipe A FIFO underrun [drm:ivybridge_set_fifo_underrun_reporting] *ERROR* uncleared fifo underrun on pipe B [drm:ivb_err_int_handler] *ERROR* Pipe B FIFO underrun [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder A [drm:cpt_serr_int_handler] *ERROR* PCH transcoder A FIFO underrun [drm:cpt_set_fifo_underrun_reporting] *ERROR* uncleared pch fifo underrun on pch transcoder B [drm:cpt_serr_int_handler] *ERROR* PCH transcoder B FIFO underrun Thanks, Jörg _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
