Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932234Ab1D0MRU (ORCPT ); Wed, 27 Apr 2011 08:17:20 -0400 Received: from ch-smtp05.sth.basefarm.net ([80.76.153.6]:53839 "EHLO ch-smtp05.sth.basefarm.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756453Ab1D0MRT (ORCPT ); Wed, 27 Apr 2011 08:17:19 -0400 Message-ID: <4DB80901.9070405@fastmail.fm> Date: Wed, 27 Apr 2011 14:16:01 +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: Jerome Glisse CC: 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> <4DB3EC35.7000601@fastmail.fm> In-Reply-To: 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 1QF3fk-0007w1-GV. X-Scan-Signature: ch-smtp05.sth.basefarm.net 1QF3fk-0007w1-GV 102fdd0569c4307107071a899ddc6007 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2479 Lines: 64 On 04/25/11 16:53, Jerome Glisse wrote: > On Sun, Apr 24, 2011 at 5:24 AM, Anders Eriksson wrote: > > 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 > > > > > > Best is to open a bug and attach xorg log & kernel dmesg. > > https://bugs.freedesktop.org/ Done: https://bugs.freedesktop.org/show_bug.cgi?id=36630 I'd be happy to produce more detailed logs if you tell me what knobs to tweak. -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/