Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754337Ab3IXRxj (ORCPT ); Tue, 24 Sep 2013 13:53:39 -0400 Received: from mail-ie0-f171.google.com ([209.85.223.171]:55583 "EHLO mail-ie0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752829Ab3IXRxi (ORCPT ); Tue, 24 Sep 2013 13:53:38 -0400 MIME-Version: 1.0 In-Reply-To: References: From: Bjorn Helgaas Date: Tue, 24 Sep 2013 11:53:17 -0600 Message-ID: Subject: Re: [Bug 61811] New: kms mode breaks and using radeon.agpmode=-1 To: bruno@wolff.to Cc: "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , DRI mailing list , Dave Airlie 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 Content-Length: 2189 Lines: 50 [+cc Dave] On Mon, Sep 23, 2013 at 12:33 PM, Bjorn Helgaas wrote: > [+cc linux-pci, linux-kernel, dri-devel] > > On Sat, Sep 21, 2013 at 11:39 AM, wrote: >> https://bugzilla.kernel.org/show_bug.cgi?id=61811 >> >> Bug ID: 61811 >> Summary: kms mode breaks and using radeon.agpmode=-1 >> Product: Drivers >> Version: 2.5 >> Kernel Version: 3.12 >> Hardware: All >> OS: Linux >> Tree: Fedora >> Status: NEW >> Severity: normal >> Priority: P1 >> Component: PCI >> Assignee: drivers_pci@kernel-bugs.osdl.org >> Reporter: bruno@wolff.to >> Regression: No >> >> I need to use radeon.agpmode=-1 with my rv280 based graphics card due to a long >> (2+ years) standing bug with the driver. Recently I was no longer able to start >> X because modesetting is no longer working. At boot I no longer see the >> resolution change and I got log entries later in Xor.0.log saying "[KMS] drm >> report modesetting isn't supported." >> If I boot without radeon.agpmode=-1 X starts, though becomes unusable shortly >> due to the pre-existing but. kernel-PAE-3.12.0-0.rc0.git22.2.fc21.i686 works >> for me. kernel-PAE-3.12.0-0.rc0.git24.1.fc21.i686 doesn't work. (git23's build >> failed so I didn't test that one.) >> I did a git whatchanged d5d04bb..3711d86 which I think should have showed me >> the commits that were in git24 and not git22 and I didn't see any specifically >> directed at the radeon driver. I did see some PCI related commits. > > Thanks for the report! Can you attach the complete dmesg logs from > the working kernel and the failing one (booted with > "radeon.agpmode=-1") to the bugzilla? Also the output of "lspci -vv". I don't see any obvious PCI issue there, so I reassigned the bugzilla to the video folks. Bjorn -- 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/