Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751984Ab0FGPD7 (ORCPT ); Mon, 7 Jun 2010 11:03:59 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:36661 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750897Ab0FGPD6 convert rfc822-to-8bit (ORCPT ); Mon, 7 Jun 2010 11:03:58 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=u4hvpTMOapFGYSgHBcfYdsas60FDeUkMZdSyLDVzJiv847XCgbolmZXY2v4EcFORrv 7+rpOWAPhu6ZWeq1gkG9jAJegTrFK9vpmYpPT5VJck8RPTv4lhFywsHNdxtjC9x4cUkE b/YLdPn2KOxY0GmA8uxzubmFxAzQK4lMeuBx0= MIME-Version: 1.0 In-Reply-To: References: <4BFD2901.20800@ladisch.de> <4BFE5AA1.7070103@ladisch.de> <4BFE66CA.5070400@ladisch.de> Date: Mon, 7 Jun 2010 11:03:56 -0400 Message-ID: Subject: Re: [alsa-devel] No mixers on ATI RS780 Azalia From: Alex Deucher To: Jan Engelhardt Cc: Clemens Ladisch , Takashi Iwai , Dave Airlie , alsa-devel@alsa-project.org, Linux Kernel Mailing List , dri-devel@lists.freedesktop.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2044 Lines: 58 On Mon, Jun 7, 2010 at 8:49 AM, Jan Engelhardt wrote: > On Thursday 2010-05-27 14:34, Clemens Ladisch wrote: >>Clemens Ladisch wrote: >>> Please do not assume that the "HDMI" device is the right one, since you >>> never got either one to work in Linux. >> >>Hmm, that computer is separate from the actual LCD, which has an HDMI >>input, so it's possible that the HDMI output would be correct. >> >>In that case, it's likely that you've run into this bug: >>https://bugs.freedesktop.org/show_bug.cgi?id=28030 >> >>You might try the patch mentioned there, or radeonhd, or fglrx. > > Cc'ing drm. > > I conclude further tests. > > * Linux 2.6.35-rc2 > - fbcon:radeondrmfb using "modprobe radeon modeset=1" > ?- sound ok > - Xorg (7.4) with 'radeonhd' > ?- fbcon ok, no sound in Xorg - I figure radeonhd is obsolete > - Xorg with 'radeon' > ?- fbcon ok, xorg ok. > ? ?There is a small breakdown when switching between fbcon and xorg > > * Linux 2.6.33.5 > - like 2.6.35-rc2, but had a bug that prevented radeon.ko to go into > ?graphics mode when initially loaded; workaround: modprobe fglrx; > ?rmmod fglrx; modprobe radeon modeset=1 > - or fglrx, also makes sound work > > - fglrx bug aside: switching from Xorg to console (either 80x25 or > ?radeondrmfb) makes a fugly "pop" noise, and if the target is > ?radeomdrmfb, display is garbled. > > > So I'm happy. > Conclusive questions however: > > * Why is it that I am only allowed to have sound in graphics mode? HDMI audio is only enabled on active outputs during modeset. > > * The radeon.ko module does not have any PCI IDs defined, thus does not > get autoloaded like i915.ko. Is this intentional? It also seems > to default to modeset=0. What kernel are you using? It definitely has pci ids and autoloads just fine. Alex -- 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/