From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Rp2ZO-0003CI-4G for garchives@archives.gentoo.org; Sun, 22 Jan 2012 18:55:14 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B0890E0B98; Sun, 22 Jan 2012 18:54:45 +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 A1AC7E0B77 for ; Sun, 22 Jan 2012 18:52:22 +0000 (UTC) Received: by bkbzt19 with SMTP id zt19so509510bkb.40 for ; Sun, 22 Jan 2012 10:52:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=ftEtKiyN48CC8OjFfkJswA/LffyD2N1ItUrRWSMmf4I=; b=Phke0K0Y3gW0JOB4pDmdAW3pFFGpECKpawgr9yuCmra9FV8Gx98xPwVSEk0oR3r9Fv 9ktqbHMsUjhYkQ7pEm2NSt0x3BlRnFJ/eyRSe+0zB37T598/qvsqgtgEAmui54mW7Esm xEkpbcLoVF/S6WUCggnWOvaSPIfZ+SDkZtArE= 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 10.204.130.150 with SMTP id t22mr2057211bks.1.1327258341786; Sun, 22 Jan 2012 10:52:21 -0800 (PST) Received: by 10.204.177.18 with HTTP; Sun, 22 Jan 2012 10:52:21 -0800 (PST) In-Reply-To: References: Date: Sun, 22 Jan 2012 13:52:21 -0500 Message-ID: Subject: Re: [gentoo-user] KVM problems - anyone know _why_ it happens? From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 X-Archives-Salt: bd59229e-af29-4b2f-9d5d-718092d54723 X-Archives-Hash: b8fdf1dadde8ee7b99a23d5584a38747 On Sun, Jan 22, 2012 at 12:47 PM, Stroller wrote: > > On 22 January 2012, at 15:54, Mark Knecht wrote: >> ... >> Basically, I looked around in Google for anyone that had real info >> about why this problem occurs, couldn't find any that made sense, and >> am wondering how to choose a KVM that's going to work out of the box >> short of asking for model numbers, etc. > > For all you've written, I'm afraid the best answer you're likely to get it "buy a KVM you can return" (or buy secondhand at a price you can resell without loss). > > Video resolutions / refresh rates / timing / &c is a bit of a black art. What the heck is a modeline? A modeline is a one-liner way of representing a display driver mode. I always preferred the block form; it's far more readable. It's been almost a decade since I've written one, though. Haven't really needed to since XFree86 4 came out. I don't remember all of the bits of information in it, but here are some of the highlights: * Vertical refresh rate (in kHz): how rapidly the CRT's electron beam crosses the screen horizontally. * Horizontal refresh rate (in Hz): how rapidly the CRT's electron beam crosses the screen vertically. * Some horizontal and vertical overdraw values I don't remember the specifics of, but it amounts to realizing that the electron beam is active past the bezel of your monitor. "xvidtune", by the way, was an awesome way to do live testing and configuration of these values, and it would emit a modeline for you when you asked it. -- :wq