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 4DE6059CB2 for ; Thu, 14 Apr 2016 23:34:10 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id BFD0FE088D; Thu, 14 Apr 2016 23:33:53 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id B1169E087F for ; Thu, 14 Apr 2016 23:33:52 +0000 (UTC) Received: from [192.168.1.41] (pool-173-72-254-242.clppva.fios.verizon.net [173.72.254.242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jcallen) by smtp.gentoo.org (Postfix) with ESMTPSA id 19861340DE3 for ; Thu, 14 Apr 2016 23:33:51 +0000 (UTC) Subject: [gentoo-user] Re: KDE and the new plasma 5 thing To: gentoo-user@lists.gentoo.org References: <570C89C0.3060807@gmail.com> <2953081.zKoEVCfRZY@andromeda> <570F5313.1060005@yandex.ru> <11239581.vlvDZdi9DS@dell_xps> From: Jonathan Callen Message-ID: <571028DC.6010800@gentoo.org> Date: Thu, 14 Apr 2016 19:33:48 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.7.1 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 In-Reply-To: <11239581.vlvDZdi9DS@dell_xps> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Archives-Salt: 006cbd2e-a0f9-4ade-95a2-c658d90def29 X-Archives-Hash: 52029f7f8d42aa47325876c2439a9597 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 04/14/2016 03:39 PM, Mick wrote: > On Thursday 14 Apr 2016 11:21:39 Yuri K. Shatroff wrote: >> 14.04.2016 10:43, J. Roeleveld wrote: >>> On Thursday, April 14, 2016 10:33:10 AM Yuri K. Shatroff >>> wrote: >>>> 14.04.2016 00:49, Dale wrote: >>>>> Yuri K. Shatroff wrote: >>>> Hi Dale, >>>> >>>>> I'm not sure on where you got the black screen. If it is >>>>> when X started, did you switch to sddm or some other >>>>> compatible display manager? The old kdm isn't supported >>>>> and from what I read, doesn't work. That may explain the >>>>> black screen. >>>> >>>> Sddm worked as expected, not to mention its veeery slow >>>> interface (for that nvidia drivers can be blamed, but >>>> whatever). The black screen appeared after logging in. >>> >>> Slow interface? It works quite well on my laptop. Did you add >>> the "sddm" user to the "video" group as mentioned in the >>> upgrade guide? >> >> No I didn't because I had a much more blatant issue with the >> whole desktop than the 'SDDM display issues', I just didn't get >> to that. Thanks for pointing it out, next time I'll give it a >> try. > > I don't have NVidia or use the full plasma desktop environment on > my laptop (I use enlightenment instead with a Radeon card). > However, I have not added sddm to the video group and have not > noticed anything undue in my logs. I have however noticed that > sddm is slightly slower than kdm. > > Why is the video group needed? What does it do? > The sddm user only needs to be in the video group if using the proprietary NVIDIA driver, as it controls access to some low-level device nodes created by that driver for the use of the NVIDIA driver's userspace component. It may be possible to use those device nodes to perform certain privileged actions (the code behind them is in a binary blob in the kernel with no source), so they are protected such that only members of the video group can use them. - -- Jonathan Callen -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCgAGBQJXECjYAAoJEEIQbvYRB3mgJK8P/1Komec/lz7TYLKM4SW7LfzW 54QCZJdJMh+Vc+fBCt39jtpdABpnJXaqkbB1kVFeMcxA+0qwr7jZ+Ba49sUq/zDH LDCb+qBG+7Qn/5cVxHfiFj/mAQ7OEAPT1vTco5zfkFH8HhvqNEtte1P+5H5V2Yzq //kHXwQ7Hwrk9pb/yRn0Ta4LAQBwSO/NgGCslFXyKUwzhENcnVnMz2LlxKadQrqS pw6odg3yKBkFgruftsuj1m/4eayYCIDRGY+dFjLchMN48hq5uZ5HzXoEWoW9yqTB 1+uYo+kPr7lO+QhUyrLGv7UxNvpNOskZAcTr8Lk+8vndalV17IPRvrrKT6giVeGl rU3wnD3AU57wfdqNJcm/LcEgk30OzsHl9ElEInbyADCh6x1yi3Ekw2Wbu2Kirat2 hSFK4efQn+yxu/taOFAFmvrYuDpGTOxs9WtA6tvMex8QOPKnovMWHz/WLAO0095U M90slovPhSI1+gcxpHZgdMaBnwFm7ZNP31/EUKg3xQeiP2pATH11GC2a2kzIa5O7 9qUc8wX6nhJAO2to1snI5hhnwToRo0EvEO7Ia3MsUDwiN9GsGl/c5AD4jgk3iU6g /e93JWuGvcYs+fJPDNEcx1GTrG822d7mb1n3N7A0HE3xfwVIhsKeqS03i6FcKd1s fvJKT4IFNPvkZyrt45cg =H+8Z -----END PGP SIGNATURE-----