linux-kernel - Re: i915 X lockup

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Message-Id: <1235780431.6992.14.camel@gaiman>
Date:	Fri, 27 Feb 2009 16:20:31 -0800
From:	Eric Anholt <eric@...olt.net>
To:	Sitsofe Wheeler <sitsofe@...oo.com>
Cc:	Jiri Slaby <jirislaby@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>, airlied@...ux.ie,
	keithp@...thp.com, dri-devel@...ts.sourceforge.net,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>
Subject: Re: i915 X lockup

On Fri, 2009-02-27 at 23:12 +0000, Sitsofe Wheeler wrote:
> On Fri, Feb 27, 2009 at 02:49:06PM +0100, Jiri Slaby wrote:
> > On 27.2.2009 14:04, Sitsofe Wheeler wrote:
> > >On Fri, Feb 27, 2009 at 02:32:31AM -0800, Andrew Morton wrote:
> > >>On Fri, 27 Feb 2009 10:28:51 +0100 Jiri Slaby<jirislaby@...il.com>  wrote:
> > >>
> > >>>everytime I run X, it gets stuck. Currently running on mmotm
> > >>>2009-02-26-16-58, but I think this is wider problem. I had i915 disabled
> > >>>for a long time (until I noticed today).
> > >
> > >Which version of X are you using? Does it support kernel modesetting? If
> > >not, did you disable kernel modesetting in the KConfig file for i915?
> > 
> > xorg-x11-server-7.4-17.3
> > which is
> > X.Org X Server 1.5.2
> > 
> > modesetting enabled:
> > CONFIG_DRM_I915_KMS=y
> > 
> > Which X version is needed for that?
> 
> Good question. I can see that 7.4 supports GEM but I see nothing about
> kernel modesetting (
> http://www.phoronix.com/scan.php?page=article&item=xorg_74_final&num=1).
> I know it's enabled in the Fedora (since Fedora 9) xorgs but I have no
> idea about openSUSE (which I believe is what you are using based on
> package numbers). Apparently kernel modesetting can be turned off on the
> kernel command line by using nomodesetting so that might be a quick
> thing to try...

KMS support is not a feature of the server but of your 2D driver.  You
want 2.6.2, or things will be bad.

-- 
Eric Anholt
eric@...olt.net                         eric.anholt@...el.com



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