From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 42616] New: Radeon Kernel Mode Setting sets wrong mode
Date: Fri, 20 Jan 2012 18:23:13 GMT
Message-ID: <bug-42616-2300@https.bugzilla.kernel.org/>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org>
Received: from bugzilla.kernel.org (bugzilla.kernel.org [198.145.19.204])
	by gabe.freedesktop.org (Postfix) with ESMTP id 9EEBA9E782
	for <dri-devel@lists.freedesktop.org>;
	Fri, 20 Jan 2012 10:23:14 -0800 (PST)
Received: from bugzilla.kernel.org (localhost [127.0.0.1])
	by bugzilla.kernel.org (8.14.5/8.14.5) with ESMTP id q0KINE8B031812
	for <dri-devel@lists.freedesktop.org>; Fri, 20 Jan 2012 18:23:14 GMT
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
	<mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org
To: dri-devel@lists.freedesktop.org
List-Id: dri-devel@lists.freedesktop.org

https://bugzilla.kernel.org/show_bug.cgi?id=42616

           Summary: Radeon Kernel Mode Setting sets wrong mode
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: thomas.jones@utoronto.ca
        Regression: No


I have a Radeon HD 3470, connected to a Dell P2010H monitor via Display Port.

The monitor's native resolution is 1600x900, and everything works correctly
with UMS, however if I use KMS I cannot use that mode, I can use at least
1024x768, 1280x1024, and 1152x864 with KMS, but no matter how I try I cannot
get it to work in 1600x900. I have tried with the CVT timings, (reduced
blanking and not) and with the ones provided in the monitor's EDID.

If I attempt to set any of those modes (the 1600x900) with KMS on the monitor
claims that I'm using an unsupported mode. UMS works just fine though.

I'm running Fedora, and I don't think this is a regression in the kernel since
I don't think this computer has ever worked with KMS.

Right now what I've done is I have set the kernel command line to boot with
1152x864 and KMS, then I tried to use xrandr to change modes and the monitor
just complained.

dmesg doesn't seem to have anything useful to say, and neither does Xorg.0.log

-- 
Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are watching the assignee of the bug.