On Tue, Jun 24, 2014 at 02:24:30PM +0200, Thomas Meyer wrote: > Am Dienstag, den 24.06.2014, 12:57 +0100 schrieb Chris Wilson: > > On Tue, Jun 24, 2014 at 02:06:24PM +0300, Jani Nikula wrote: > > > On Tue, 24 Jun 2014, Thomas Meyer <thomas@xxxxxxxx> wrote: > > > > the i915 driver is still broken in 3.16-rc2. Resume from ram crashes the > > > > X server. > > > > > > This is not new to 3.16-rc2; apparently we've had it since v3.15-rc4 > > > [1]. Also related [2]. > > > > > > Chris, any fresh ideas? > > > > Nope. The bug is https://bugs.freedesktop.org/show_bug.cgi?id=76554 > > everything we know and have tried is there. Which is not much more than > > at time of the original incarnation: > > > > commit 50aa253d820ad4577e2231202f2c8fd89f9dc4e6 > > Author: Keith Packard <keithp@xxxxxxxxxx> > > Date: Tue Oct 14 17:20:35 2008 -0700 > > > > i915: Fix up ring initialization to cover G45 oddities > > > > G45 appears quite sensitive to ring initialization register writes, > > sometimes leaving the HEAD register with the START register contents. Check > > to make sure HEAD is reset correctly when START is written, and fix it up, > > screaming loudly. > > -Chris > > > > Hi, > > so why not revert 78f2975eec9faff353a6194e854d3d39907bab68 (drm/i915: > Move all ring resets before setting the HWS page) ? Because that patch was in response to a boot time regression. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
