linux-kernel - Re: [git pull] drm tree for 3.12-rc1

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Date:	Thu, 5 Sep 2013 15:32:43 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Dave Airlie <airlied@...ux.ie>,
	Chris Wilson <chris@...is-wilson.co.uk>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Paulo Zanoni <paulo.r.zanoni@...el.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	DRI mailing list <dri-devel@...ts.freedesktop.org>,
	"Beauchesne, Gwenole" <gwenole.beauchesne@...el.com>,
	Sean V Kelley <sean.v.kelley@...el.com>
Subject: Re: [git pull] drm tree for 3.12-rc1

On Thu, 5 Sep 2013 12:18:32 -0700
Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> On Thu, Sep 5, 2013 at 3:41 AM, Dave Airlie <airlied@...ux.ie> wrote:
> >
> > i915: Haswell PC8+ support and eLLC support, HDMI 4K support, initial per-process VMA pieces,
> >       watermark reworks, convert to generic hdmi infoframes, encoder reworking, fastboot support,
> 
> Hmm.
> 
> The first time I booted this, I just got a black screen on my Haswell
> desktop when X11 started up.  I could ctrl-alt-BS and ctrl-alt-del to
> reboot the machine, and neither the Xorg.0.log nor the dmesg contained
> anything interesting.

Did the console come back after ctl-alt-bs?  Or was it just a blind
reboot?  Troubling that it doesn't happen again...

> I was about to try to bisect it, but decided to see how repeatable it
> was, and it didn't happen again. But it also hasn't ever happened
> before, so I'm a bit worried.
> 
> This is with the DP cable, which has made my other Haswell issues go away.
> 
> I'm also a bit bummed that hw acceleration of video doesn't seem to
> work on Haswell, meaning that full-screen is now a jerky mess. I fear
> that that is user-space libraries/X.org, but I thought I'd mention it
> in the hope of getting a "oh, it's working for us, you'll get a fix
> for it soon".

AFAIK we have libva support out there for HSW.  The trick is getting
your stack to actually use it.  Gwenole or Sean may be able to help.

> Because my shiny new 65W haswell is really nice and does a "make
> allmodconfig" in half the time of my old machine, but the GPU side has
> been something of a step backwards...

Well we definitely don't want that...

-- 
Jesse Barnes, Intel Open Source Technology Center
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