From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: Sandy Bridge Desktop - 1920x1080i interlace not working Date: Wed, 18 Jan 2012 21:12:34 +0100 Message-ID: <20120118201234.GF4002@phenom.ffwll.local> References: <4f15cfbd.c39dec0a.71a1.07a8SMTPIN_ADDED@mx.google.com> <20120117202512.GW4093@phenom.ffwll.local> <20120117202551.GX4093@phenom.ffwll.local> <20120117213407.GY4093@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ww0-f43.google.com (mail-ww0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTP id 0EC289EB26 for ; Wed, 18 Jan 2012 12:12:37 -0800 (PST) Received: by wgbdr11 with SMTP id dr11so4011297wgb.12 for ; Wed, 18 Jan 2012 12:12:37 -0800 (PST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Alfonso Fiore Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Wed, Jan 18, 2012 at 05:08:55PM +0100, Alfonso Fiore wrote: > On Tue, Jan 17, 2012 at 10:34 PM, Daniel Vetter wrote: > > > > On Tue, Jan 17, 2012 at 09:59:18PM +0100, Alfonso Fiore wrote: > > > Hi, > > > > > > here is mine. Let me know if you need any other log. > > > > Ok, your TV only reports 1080i as a mode (at least that's the only thing > > your kernel can decode). The i915 driver then rejects it because it's > > interlaced (we unfortunately do not yet support interlaced everywhere we > > could). Which leaves you with no modes, so as a fallback the kernel just > > adds a bunch of default VGA modes which your TV can't cope with properly. > > Hi Daniel, > > would you agree that these are two separate bugs? > I'd like the Intel driver to both: > - allow me to use 1920x1080i > - allow me to use 1024x768p without reverting to nomodeset Yep, that's correct. For the first issue Peter Ross is working on some patches, for the later I suspect the missing CEA support. Please try this out by grabbing the kernel tree I've told you and running it. Peter's patches are on this mailing list, if it's easier for you I could create a quick git branch somewhere. > If I want to see a video where a progressive resolution brings better > results than an interlaced resolution (despite the less pixels) I'd > like to be able to. > > Right now, with nomodeset I can only play video using VLC which has > its own hardware acceleration. With the embedded xbmc player I can't > watch any video. > > Will a proper way to see 1024x768 be added? kernel 3.0.0-12.20 (Ubuntu > 11.10) was working fine with the i3 550. Hm, that smells like a regression. Was this also with nomodeset? -Daniel -- Daniel Vetter Mail: daniel@ffwll.ch Mobile: +41 (0)79 365 57 48