From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Fitzhardinge Subject: Re: radeon in dom0/ivtv in domU: irq 16 nobody cared Date: Tue, 13 Apr 2010 13:43:44 -0700 Message-ID: <4BC4D780.7080302@goop.org> References: <20100408001916.GA10840@phenom.dumpdata.com> <201004090147.35140.mark.hurenkamp@xs4all.nl> <20100413125741.GA16475@phenom.dumpdata.com> <504848C9-52F2-46C5-BD0E-1C2B35BA1A02@xs4all.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <504848C9-52F2-46C5-BD0E-1C2B35BA1A02@xs4all.nl> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Mark Hurenkamp Cc: xen-devel@lists.xensource.com, Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org On 04/13/2010 01:05 PM, Mark Hurenkamp wrote: > I put a monitor in place, we'll see what happens. As far as i can see > now, > the radeon driver registers the IRQ, but doesn't seem to do much with it > during normal use (counter is still 0 after about 15 minutes running X > now). > Perhaps it is meant for opengl or some accelerated function, or my > xserver > is just not using the drivers full potential. > Which makes it all the easier to see a storm should it occur ;-) It probably only gets used if the X server is driving the card faster than it can keep up, so the queue starts getting filled. Its quite likely that normal X/text stuff just doesn't get close to exerting the card at all. If your setup allows it, you could try turning on "desktop effects" to see what happens then... J