From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755474AbaFUVHI (ORCPT ); Sat, 21 Jun 2014 17:07:08 -0400 Received: from mail.fireflyinternet.com ([87.106.93.118]:63060 "EHLO fireflyinternet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754410AbaFUVHH (ORCPT ); Sat, 21 Jun 2014 17:07:07 -0400 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Date: Sat, 21 Jun 2014 22:06:52 +0100 From: Chris Wilson To: Pavel Machek Cc: Daniel Vetter , "Rafael J. Wysocki" , kernel list , intel-gfx Subject: Re: 3.16, i915: less colors in X? Message-ID: <20140621210652.GA14025@nuc-i3427.alporthouse.com> Mail-Followup-To: Chris Wilson , Pavel Machek , Daniel Vetter , "Rafael J. Wysocki" , kernel list , intel-gfx References: <20140514155759.GB9723@amd.pavel.ucw.cz> <20140514182046.GA13342@amd.pavel.ucw.cz> <20140607120614.GB5309@amd.pavel.ucw.cz> <20140607231124.GA3611@amd.pavel.ucw.cz> <20140609102328.GA25332@amd.pavel.ucw.cz> <20140621202901.GA3840@amd.pavel.ucw.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140621202901.GA3840@amd.pavel.ucw.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jun 21, 2014 at 10:29:01PM +0200, Pavel Machek wrote: > Hi! > > I just test-booted 3.16-rc1, and background in X looked just wrong -- > very noticeable bands on the background gradient. I thought that maybe > it is just my eyes, but I went back to older kernel, and background is > ok now. > > I'm trying to figure out how to ask X what color depth it is using...? > > This is thinkpad x60 with Debian 6.0.9. > > Any ideas? That suggests that the panel dithering changed. Compare intel_reg_dumper output for both kernels, especially PIPE.CONF. -Chris -- Chris Wilson, Intel Open Source Technology Centre From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: 3.16, i915: less colors in X? Date: Sat, 21 Jun 2014 22:06:52 +0100 Message-ID: <20140621210652.GA14025@nuc-i3427.alporthouse.com> References: <20140514155759.GB9723@amd.pavel.ucw.cz> <20140514182046.GA13342@amd.pavel.ucw.cz> <20140607120614.GB5309@amd.pavel.ucw.cz> <20140607231124.GA3611@amd.pavel.ucw.cz> <20140609102328.GA25332@amd.pavel.ucw.cz> <20140621202901.GA3840@amd.pavel.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from fireflyinternet.com (mail.fireflyinternet.com [87.106.93.118]) by gabe.freedesktop.org (Postfix) with ESMTP id 35A8D6E36F for ; Sat, 21 Jun 2014 14:06:58 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20140621202901.GA3840@amd.pavel.ucw.cz> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Pavel Machek Cc: Daniel Vetter , intel-gfx , "Rafael J. Wysocki" , kernel list List-Id: intel-gfx@lists.freedesktop.org On Sat, Jun 21, 2014 at 10:29:01PM +0200, Pavel Machek wrote: > Hi! > > I just test-booted 3.16-rc1, and background in X looked just wrong -- > very noticeable bands on the background gradient. I thought that maybe > it is just my eyes, but I went back to older kernel, and background is > ok now. > > I'm trying to figure out how to ask X what color depth it is using...? > > This is thinkpad x60 with Debian 6.0.9. > > Any ideas? That suggests that the panel dithering changed. Compare intel_reg_dumper output for both kernels, especially PIPE.CONF. -Chris -- Chris Wilson, Intel Open Source Technology Centre