Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754824AbZLHNUE (ORCPT ); Tue, 8 Dec 2009 08:20:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754794AbZLHNUD (ORCPT ); Tue, 8 Dec 2009 08:20:03 -0500 Received: from mail-px0-f194.google.com ([209.85.216.194]:52324 "EHLO mail-px0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754793AbZLHNUB convert rfc822-to-8bit (ORCPT ); Tue, 8 Dec 2009 08:20:01 -0500 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=AtEGCz9Hbu+pUD+eSJOn6N2wJEpYBuek/BdxECSnbaocSEMllNYky4chrl+bSaIol4 q+uPC0UPTQvXJCDfTkfWi+g4MgjxhXGawShu/tk7qhHDDas5cnmY6d0YNPDtvFDgx0gT 8uyPbu7cXGq3O8opidXIAz93cUDz7yJG7u0+Y= MIME-Version: 1.0 In-Reply-To: References: <4B1A6F78.8010408@myrealbox.com> <50CA8D92EC%linux@youmustbejoking.demon.co.uk> <20091206173222.4c2d5aaa@jbarnes-piketon> Date: Tue, 8 Dec 2009 20:20:07 +0700 Message-ID: Subject: Re: 2.6.31 -> 2.6.32 Sound and video regressions From: Emmanuel Benisty To: Jesse Barnes Cc: Darren Salt , linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, luto@myrealbox.com, eric@anholt.net Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2712 Lines: 59 On Mon, Dec 7, 2009 at 8:38 PM, Emmanuel Benisty wrote: > On Mon, Dec 7, 2009 at 10:52 AM, Emmanuel Benisty wrote: >> On Mon, Dec 7, 2009 at 8:32 AM, Jesse Barnes wrote: >>> On Sat, 05 Dec 2009 23:44:55 +0000 >>> Darren Salt wrote: >>> >>>> I demand that Andy Lutomirski may or may not have written... >>>> >>>> > Emmanuel Benisty wrote: >>>> [snip] >>>> >> I just wanted to report 2 regressions I am having now with 2.6.32. >>>> >> Video >>>> >> Screen is flickering/glitching like crazy in X. It happens whether >>>> >> randomly or when conky is refreshed, when the mouse cursor moves >>>> >> and like hell when a page is loading in the browser. Not so easy to >>>> >> describe this issue. >>>> [snip] >>>> >>>> > That sounds like FIFO underruns, which (I think) were introduced >>>> > when self-refresh was enabled but should have been fixed. I >>>> > personally have no clue how to fix them, but if you told the Intel >>>> > people what kind of chip you have (lspci output), they can probably >>>> > fix it. >>>> >>>> It also sounds like what I'm seeing on my EeePC 901. It only happens >>>> after resume, which makes STR a little less than useful; the display >>>> will, sooner or later, show a single colour (which is, presumably, >>>> the result of a display engine hang, as described in the comment >>>> immediately before intel_calculate_wm) and, seemingly, be stuck like >>>> that until power-off or reboot. >>>> >>>> Whether it *is* the same problem, I couldn't say. >>>> >>>> Needless to say, this problem goes away if I disable KMS. >>> >>> Arg, there are a few reports of this now, but I haven't been able to >>> reproduce it.  I'll try harder...  (FYI the upstream >>> bugs.freedesktop.org # for it is 24314). >> >> It *seems* that we are facing two different issues here (I don't even >> use S2R and the problem is there since the very first second I start >> X). Anyway, I have bisected the problem on my box, it turns out to be >> this one: >> >> drm/i915: Fix render reclock availability detection >> >> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=181a5336d6cc836f05507410d66988c483ad0154 >> > So, I have reverted this commit and rebuilt 2.6.32. It completely > solved the issue described in my first post. > just FTR, it looks like I'm not alone: http://forums.gentoo.org/viewtopic-p-6087556.html#6087556 -- 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/