Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932187AbaDIGy5 (ORCPT ); Wed, 9 Apr 2014 02:54:57 -0400 Received: from mail-bk0-f54.google.com ([209.85.214.54]:42965 "EHLO mail-bk0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750862AbaDIGyz (ORCPT ); Wed, 9 Apr 2014 02:54:55 -0400 MIME-Version: 1.0 In-Reply-To: References: <878urg9ttv.fsf@intel.com> Date: Wed, 9 Apr 2014 16:54:54 +1000 Message-ID: Subject: Re: [Intel-gfx] i915 DVI resolution regression (3.13.7+) From: Dave Airlie To: Daniel J Blueman Cc: Jani Nikula , Daniel Vetter , "intel-gfx@lists.freedesktop.org" , Linux Kernel Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 9, 2014 at 4:07 PM, Daniel J Blueman wrote: > On 9 April 2014 11:41, Dave Airlie wrote: >> On Tue, Apr 8, 2014 at 5:32 PM, Daniel J Blueman wrote: >>> On 8 April 2014 15:14, Jani Nikula wrote: >>>> On Tue, 08 Apr 2014, Daniel J Blueman wrote: >>>>> Ville et al, >>>>> >>>>> It looks like commit e3ea8fa6beaf55fee64bf816f3b8a80ad733b2c2 (or >>>>> another commit in 3.13.7) broke modes which require DVI-D dual-link, >>>>> eg 2560x1440 with my panel. >>>>> >>>>> I don't see these modelines in 3.13.7 or later (eg 3.14): >>>>> >>>>> [ 5.582] (II) intel(0): Modeline "2560x1440"x60.0 312.25 2560 >>>>> 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync (89.5 kHz eP) >>>>> [ 5.582] (II) intel(0): Modeline "2560x1440"x60.0 312.25 2560 >>>>> 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync (89.5 kHz eP) >>>>> [ 5.582] (II) intel(0): Modeline "1920x1200"x59.9 193.25 1920 >>>>> 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync (74.6 kHz e) >>>>> >>>>> My monitor is a Dell U2713HM; mobo uses an H87 chipset with i5-4670. >>>> >>>> By allowing those modes we regressed setups which were not capable of >>>> displaying them. So you've got an HDMI->DVI converter? >>>> >>>> https://bugzilla.kernel.org/show_bug.cgi?id=72961 >>> >>> I am using a dual-link DVI-D to DVI-D cable to this monitor, since I >>> previously couldn't get 2560x1440 via HDMI. >> >> Intel hw has dual-link DVI-D? I'm not sure I've ever seen that, is >> this SDVO device or plain DVI-D? > > It's the DVI-D connector on: https://www.asus.com/Motherboards/H87IPLUS/ The link which says " Integrated Graphics Processor - Supports HDMI with max. resolution 4096 x 2304 @ 24 Hz - Supports DVI with max. resolution 1920 x 1200 @ 60 Hz - Supports RGB with max. resolution 1920 x 1200 @ 60 Hz I'm even wondering electrically how a HDMI->dual-link DVI adapter works. Dave. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/