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Date:      Sat, 21 Mar 2009 19:47:55 -0700
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        Robert Noland <rnoland@FreeBSD.org>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: drm on i965GM is very sluggish
Message-ID:  <20090322024755.GA48794@troutmask.apl.washington.edu>
In-Reply-To: <1237689169.1756.5.camel@balrog.2hip.net>
References:  <20090322021852.GA48543@troutmask.apl.washington.edu> <1237688696.1756.3.camel@balrog.2hip.net> <20090322022846.GA48644@troutmask.apl.washington.edu> <1237689169.1756.5.camel@balrog.2hip.net>

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On Sat, Mar 21, 2009 at 09:32:49PM -0500, Robert Noland wrote:
> On Sat, 2009-03-21 at 19:28 -0700, Steve Kargl wrote:
> > On Sat, Mar 21, 2009 at 09:24:56PM -0500, Robert Noland wrote:
> > > On Sat, 2009-03-21 at 19:18 -0700, Steve Kargl wrote:
> > > > Kernel and world are from today sources.  If I start firefox3,
> > > > redraws become painfully slow.  Top(1) shows
> > > 
> > > Todays, -CURRENT or -STABLE?
> > > 
> > 
> > -current.  This is a Dell Latitude D530 laptop.  Do you need
> > any other info.
> 
> I assume that it is fine before a vt switch, then bad after.  Does that
> match with what you are seeing?
> 

I boot.  Login in at a vt, then almost immediately do

ssh-agent startx -- -depth 16 >& ~/tmp/.x.out

I do not switch from X11 back to a console.  

Note xterm works fine.  The sluggish only appears when I
fire up firefox3, but I haven't tried other big apps like
openoffice.

Also, note I just installed a kernel without drm.  Starting
firefox3 with this new kernel does not cause the sluggish
behavior.

I also just noticed that dmesg had

drm0: <Intel i965GM> on vgapci0
info: [drm] MSI enabled 1 message(s)

Is it possible to disable MSI and still run drm?
-- 
Steve



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