From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 142EC13800E for ; Fri, 27 Jul 2012 20:59:35 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E23C621C019; Fri, 27 Jul 2012 20:59:16 +0000 (UTC) Received: from mail-bk0-f53.google.com (mail-bk0-f53.google.com [209.85.214.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 4D82921C004 for ; Fri, 27 Jul 2012 20:57:04 +0000 (UTC) Received: by bkwj4 with SMTP id j4so2074433bkw.40 for ; Fri, 27 Jul 2012 13:57:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=BXpC1v42VtRgLWgKJr07M7JXXFwOreebYDUB5OPd7F0=; b=sX+/k9k/87HM1sC7MoGsdG4GG7MgCPmPQWAJOJ14HSyfG7OCKfgm9rzu/TRO7XKTrc 5m2k7D6rqjJnb++jST86wYhHvNMENqSkcSBZBXQgTryt1lmiOj2yBJpegF7dOjMVT95m TiMYWmp72wWQKBKIbOK7Jry6V8wMfAoa4Pu/+uXsEBWU6HjXZdOh/t+CJMEWhQQWxYvN PX4G9Z9GNc/Suslej7C9BvPxnspuy/gHZ94SliUdyFQE8RrSKiaYxn6CEcnfNgW42zNB meoZDzojbZUlwe/Aa9/BSh8erWwieBzKRSG6WxzN5lbmX970WW9j9isYwL8MAjPmDTMl uY6w== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.205.136.3 with SMTP id ii3mr1511511bkc.101.1343422623426; Fri, 27 Jul 2012 13:57:03 -0700 (PDT) Received: by 10.204.10.12 with HTTP; Fri, 27 Jul 2012 13:57:03 -0700 (PDT) In-Reply-To: <5012FC72.8070200@binarywings.net> References: <5012FC72.8070200@binarywings.net> Date: Fri, 27 Jul 2012 16:57:03 -0400 Message-ID: Subject: Re: [gentoo-user] intel HD graphics 4000 and viewing DVDs From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: 9374a897-353e-4a4b-8194-fba28324dbc5 X-Archives-Hash: f99a5ea0c45b16d51c64ddc10846907a On Fri, Jul 27, 2012 at 4:39 PM, Florian Philipp wrote: > Am 27.07.2012 22:22, schrieb Michael Mol: >> On Fri, Jul 27, 2012 at 4:10 PM, Allan Gottlieb wrote: >>> I am getting a new laptop. (likely dell 6430). >>> The two graphics options are intel HD 4000 and nvidia NVS 5200M. >>> Dell is as expected suggesting the 5200M. >>> >>> I do not need 3D or fast response. Dell hinted that DVDs might not play >>> with the intel HD 4000. This seems weird to me as the 4000 is supposed >>> to be a big improvement over the 3000 and I can't believe dell or others >>> would have sold laptops that can't play dvds >>> >>> Any comments or experiences? >> >> My Duron 750MHz was able to decode DVDs in realtime. After that, all >> you're doing is blitting (or using xv) the frames to the screen. I >> would be absolutely shocked if the Intel HD 4000 GPU couldn't handle >> that basic of a 2D acceleration function. >> >> Now, DVDs use MPEG2. Blu-Ray uses h.264, which is a much harder beast >> to decode in realtime. It's possible the HD 4000 GPU can't handle >> hardware decode of h.264, but I don't know. I've never looked into it. >> (Software decode of 1080p h.264 on my Phenom 9650 worked somewhat, but >> highly active scenes would cause frame drops.) >> > > I've experienced issues playing DVDs on fullscreen with the OSS radeon > driver. Therefore I'm cautious of assumptions that something works > simply because the input is easy to decode. Upscaling to large displays > with high resolutions can be an issue. > > I'm not saying the Intel driver cannot handle it. I'm just saying you > should try it or look for reports. How high is 'high' resolution? I was upscaling to 1600x1200 using an a Radeon 9600; that card would now be almost ten years old. A bit later, I did the same on a 2.4GHz Pentium 4 using an i845-based Intel graphics card. Here's the line from lspci, as run in May of 2007: 00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01) Hardware scaling a 2D image is one of the most trivial hardware-accelerated options GPUs perform. If someone had difficulties upscaling a 480p (roughly what DVDs are) to 1080p at 24 or 33fps, I would be very highly suspicious of a software misconfiguration. That kind of scaling should even be comfortably doable in software on any modern x86-derived processor. (With the plausible exclusion of the Atom CPU) -- :wq