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 58D72138CC4 for ; Sat, 28 Mar 2015 17:47:38 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9BC44E08D9; Sat, 28 Mar 2015 17:47:32 +0000 (UTC) Received: from mail.web-xs.org (mail.web-xs.org [148.251.4.204]) (using TLSv1.1 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 55363E084B for ; Sat, 28 Mar 2015 17:47:31 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.web-xs.org (Postfix) with ESMTP id 9BBF26EC1CDD for ; Sat, 28 Mar 2015 18:47:29 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at mail.web-xs.org Received: from mail.web-xs.org ([127.0.0.1]) by localhost (mail.web-xs.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id d0aP51uGZgs5 for ; Sat, 28 Mar 2015 18:47:28 +0100 (CET) Received: from server-1.localdomain (p54A718EA.dip0.t-ipconnect.de [84.167.24.234]) (Authenticated sender: lukas@der-erste-sinn.de) by mail.web-xs.org (Postfix) with ESMTPA id 14CFD6EC1CA2 for ; Sat, 28 Mar 2015 18:47:27 +0100 (CET) Received: from hal9000.localdomain (hal.localdomain [192.168.0.2]) by server-1.localdomain (Postfix) with ESMTP id 6C16B3F681 for ; Sat, 28 Mar 2015 18:47:27 +0100 (CET) Date: Sat, 28 Mar 2015 18:45:09 +0100 From: To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] [OT] Purchase and setup of monitor calibration device Message-ID: <20150328184509.4ed9c3b5@hal9000.localdomain> In-Reply-To: <20150328114155.GB5901@kern.lan> References: <20150328114155.GB5901@kern.lan> 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 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 07422713-bb9c-432e-a482-f1b084193905 X-Archives-Hash: 994ee692e6180270d12b6ec36672e043 Frank Steinmetzger wrote: > Hey gurus >=20 > I may soon get me a shiny (not in the sense of glossy, mind you) new > monitor. Along with it, I=E2=80=99m planning on purchasing a colorimeter = to > properly calibrate it. Can anyone give me a recommendation for a > device that runs well with Linux? >=20 > It doesn=E2=80=99t have to be a super-pro device, but no el-cheapo either. > I=E2=80=99ll need it mostly for photo editing and the warm feeling of hav= ing > an above-average setup. *g* Oh and I want to improve my laptop > experience, because those things usually come with crappy screens in > the first place. So I=E2=80=99m looking at a price range of no more than = 150=E2=82=AC. >=20 > Also, I=E2=80=99m looking for info on how to set up KDE (or the entire > system?) to use the thusly generated colour profiles. So any food for > thought? >=20 > Thanks If you don't wanna spent much money you can buy a used Datacolor Spyder device on ebay. The older ones (e.g. Spyder2) are really cheap, but also very slow. :-) If your monitor has a wide color gamut then you probably need a more sophisticated device however. In that case a ColorHug AFAIK probably would also not work for you. If your monitor don't have a wide gamut but have a LED backlight then some of the cheaper colorimeters are also not suitable because LEDs doesn't emit a continuous spectrum and thus can "confuse" older colorimeters like the Spyder2 AFAIK. You really should check this out because if your colorimeter doesn't work proper for your monitor the result will be worse than without calibration. :-) A good software is media-gfx/argyllcms. Some time ago I tested it with a Spyder2 and also with a X-Rite i1 Display Pro. Argyll was better then the software delivered with both colorcheckers. Nevertheless it was not possible to proper calibrate my wide color gamut monitor because it was a rarely used model (Acer AL2723W) that is not supported by the Spyder2 or i1 Display Pro. There are ways to calibrate such a unsupported wide gamut monitor with a Spyder2 or i1 Display Pro (and other colorimeters) anyhow, but then you need a calibration file for argyll made with an spectrometer especially for this kind of monitor or a calibration software from the monitor manufacturer that is adapted for the monitor model. That's the reason why I bought a new monitor (Samsung U32D970Q) some weeks ago that is able to do a hardware calibration (different colorimeters an spectrometers are supported).=20 One advantage with hardware calibration is that you don't have to deal with icc profiles.=20 If you work with icc profiles you often have problems with color banding/clipping and improper greyscales. This also depends on how you can adjust colors and gamma with the settings of the monitor itself. If you do all the calibration with an icc profile and the colors/gamma of your monitor are way off then the result will be probably not very good. Sorry, but my English is not good enough to explain the whole background in an understandable way. :-) -- Regards wabe