Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756201Ab1DXJdM (ORCPT ); Sun, 24 Apr 2011 05:33:12 -0400 Received: from ch-smtp05.sth.basefarm.net ([80.76.153.6]:53493 "EHLO ch-smtp05.sth.basefarm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755851Ab1DXJdI (ORCPT ); Sun, 24 Apr 2011 05:33:08 -0400 X-Greylist: delayed 499 seconds by postgrey-1.27 at vger.kernel.org; Sun, 24 Apr 2011 05:33:08 EDT Message-ID: <4DB3EC35.7000601@fastmail.fm> Date: Sun, 24 Apr 2011 11:24:05 +0200 From: Anders Eriksson User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20101003 Lightning/1.0b3pre Thunderbird/3.1.3 MIME-Version: 1.0 To: Alex Deucher , airlied@redhat.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, xorg-driver-ati@lists.x.org Subject: Re: Radeon jittery post 2.6.35 References: <4D7CCFC3.7030906@fastmail.fm> <4D7FD2FB.9090505@fastmail.fm> <4D8118EB.2070209@fastmail.fm> <4D831E18.9020904@fastmail.fm> In-Reply-To: <4D831E18.9020904@fastmail.fm> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Originating-IP: 83.252.234.43 X-Scan-Result: No virus found in message 1QDvYw-0000ER-I0. X-Scan-Signature: ch-smtp05.sth.basefarm.net 1QDvYw-0000ER-I0 a7bf6a6ddecaa620ff67442976a4dd09 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1961 Lines: 51 On 03/18/11 09:55, Anders Eriksson wrote: > On 03/16/11 21:09, Anders Eriksson wrote: > > On 03/15/11 22:46, Alex Deucher wrote: > > > Try booting with radeon.audio=0 on 2.6.38rc, some TVs have problems > > > with the hdmi packets we send by default. disabling audio will treat > > > the hdmi like dvi. > > > > > > Alex > > You seem to be on to something there. radeon.audio=0 removes > > what appears to be all of the jitter. I say "appear", because during > > my many test runs today, I've come across moments where my brain > > goes "wasn't what I just noticed on the TV something abnormal?" Both > > in fb mode (post KMS), and in X11. It's definetly improved from useless > > for family use, to perfectly ok though. > > > I was too early on this one. Yesterday (.38) , and today (38-rc8), > are both jittery in post-KMS fb mode and in X, even though I use > radeon.audio=0. > > A power cycling of the TV stabilizes it though. > > I'd be more than happy to test out any patches or ideas you might have. > > -A It turns out all the failure patterns I've thought I've seen so far up through .38.x are moot. However, now on .39-rc, the KMS'd console is stable, and starting X makes it bad again. It there anything useful I can pull from any logs on the startup of X? Either from the X server, or the kernel. Last time I looked at the drm log from the kernel It was unreadable to a mere mortal, but I hope you guys can point me to what debug knobs to enable to get a good view of the interesting parts (How does one start a minimal X, btw? "xinit" gives me an undecorated xterm with the jitter. Can one start something more minimal?) Currently running today's git xorg-server and xf86-video-dri. -Anders -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/