From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751671AbbCTJeS (ORCPT ); Fri, 20 Mar 2015 05:34:18 -0400 Received: from isrv.corpit.ru ([86.62.121.231]:38729 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751582AbbCTJeP (ORCPT ); Fri, 20 Mar 2015 05:34:15 -0400 Message-ID: <550BE995.2010104@msgid.tls.msk.ru> Date: Fri, 20 Mar 2015 12:34:13 +0300 From: Michael Tokarev Organization: Telecom Service, JSC User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.5.0 MIME-Version: 1.0 To: One Thousand Gnomes CC: Linux-kernel , dri-devel@lists.freedesktop.org Subject: Re: screen goes blank when loading gma500_gfx (atom D2500) References: <52F68BEF.5030305@msgid.tls.msk.ru> <20140210104431.63f1a754@alan.etchedpixels.co.uk> <52FFB1BE.8060408@msgid.tls.msk.ru> <533FBB96.5010602@msgid.tls.msk.ru> <53E1024A.2040309@msgid.tls.msk.ru> <53E1033E.8060605@msgid.tls.msk.ru> <550AAE69.8060502@msgid.tls.msk.ru> <20150319115641.61c4a53a@lxorguk.ukuu.org.uk> <550B2814.3000104@msgid.tls.msk.ru> <20150319200521.75a48aa9@lxorguk.ukuu.org.uk> In-Reply-To: <20150319200521.75a48aa9@lxorguk.ukuu.org.uk> OpenPGP: id=804465C5 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 19.03.2015 23:05, One Thousand Gnomes wrote: >> Yes, with video=LVDS-1:d boot parameter, kernel boots fine and there is >> graphics/video output on the screen, with the following message from kernel >> when loading gma500_gfx: >> >> [ 6.472859] [drm] forcing LVDS-1 connector OFF >> >> (and a few others). >> >> There's one funky thing still -- the screen size is not calculated correctly >> for the text (vga, d-sub) console, last text line is placed at about 3/4 of >> the screen size, with the rest - 1/4 - of the screen being blank. > > I've seen that in one other case, where what was in fact happening was > that forcing the connector "off" was actually effectively leaving it as > the BIOS set it. When I use LVDS-1:d in the kernel command line, that connector is not shown by utilities such as xrandr, at all. There is, however, another connector, named LVDS-0, and are also DVI-0, DVI-1, and DisplayPort-0, DisplayPort-1, while this mobo only have DVI & D-SUB (and LVDS soldered on board too) and no DP. At least as far as I can see. So at least one LVDS connector is shown anyway (LVDS-0, not LVDS-1), and that one is "not connected". Besides, DisplayPort-1 is shown as "connected" by xrandr, with monitor set to 1024x768 mode, -- I think this is why the text VGA size is calculated wrong.. Lemme see... ..nope. Adding video=DisplayPort-1:d to the kernel command line (in addition to video=LVDS-1:d) makes no difference, DisplayPort-1 is still shown by xrandr as connected @1024x768. > What happens if you then use xrandr to change the > display sizes ? X11 works fine as far as I can see. Xrandr works and changes video modes. Once I switch from X back to the text console the text size occupes 3/4 of the screen only, as if the monitor was smaller. I wonder if it will work with more than one monitor... ;) I'll try hopefully today. Thanks, /mjt