From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: Radeon framebuffer weirdness in -mm2 Date: Fri, 21 Jan 2005 11:03:14 +1100 Message-ID: <1106265794.18397.17.camel@gaston> References: <20050120232122.GF3867@waste.org> <20050120153921.11d7c4fa.akpm@osdl.org> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.11] helo=sc8-sf-mx1.sourceforge.net) by sc8-sf-list1.sourceforge.net with esmtp (Exim 4.30) id 1CrmHa-00088y-2s for linux-fbdev-devel@lists.sourceforge.net; Thu, 20 Jan 2005 16:04:10 -0800 Received: from gate.crashing.org ([63.228.1.57]) by sc8-sf-mx1.sourceforge.net with esmtp (TLSv1:AES256-SHA:256) (Exim 4.41) id 1CrmHY-0007Ar-IV for linux-fbdev-devel@lists.sourceforge.net; Thu, 20 Jan 2005 16:04:10 -0800 In-Reply-To: <20050120153921.11d7c4fa.akpm@osdl.org> Sender: linux-fbdev-devel-admin@lists.sourceforge.net Errors-To: linux-fbdev-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Id: List-Post: List-Help: List-Subscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: Andrew Morton Cc: Matt Mackall , Linux Kernel list , ajoshi@shell.unixbox.com, Linux Fbdev development list On Thu, 2005-01-20 at 15:39 -0800, Andrew Morton wrote: > Matt Mackall wrote: > > > > I'm seeing radeonfb on my ThinkPad T30 go weird on reboot (lots of > > horizontal lines) and require powercycling to fix. Worked fine with 2.6.10. > > Which radeon driver? CONFIG_FB_RADEON_OLD or CONFIG_FB_RADEON? > > (cc Ben, who is the likely cuprit ;) > > Which -mm2, btw? 2.6.10-mm2 or 2.6.11-rc1-mm2? > > Did you try the corresponding -mm1? /me curses possible BIOS crap ... radeonfb tries to restore initial mode when the module is closed, which wouldn't work for a VGA text thing in fact... I suspect something cause driver remove() routines to be called on reboot, can you confirm ? Or is it a module that gets removed ? It may well be a problem that has always been there (regardless of the radeon driver version) and just triggered by something the kernel does on reboot... Ben. ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261268AbVAUAEe (ORCPT ); Thu, 20 Jan 2005 19:04:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261253AbVAUAEe (ORCPT ); Thu, 20 Jan 2005 19:04:34 -0500 Received: from gate.crashing.org ([63.228.1.57]:62861 "EHLO gate.crashing.org") by vger.kernel.org with ESMTP id S261274AbVAUAE0 (ORCPT ); Thu, 20 Jan 2005 19:04:26 -0500 Subject: Re: Radeon framebuffer weirdness in -mm2 From: Benjamin Herrenschmidt To: Andrew Morton Cc: Matt Mackall , Linux Kernel list , ajoshi@shell.unixbox.com, Linux Fbdev development list In-Reply-To: <20050120153921.11d7c4fa.akpm@osdl.org> References: <20050120232122.GF3867@waste.org> <20050120153921.11d7c4fa.akpm@osdl.org> Content-Type: text/plain Date: Fri, 21 Jan 2005 11:03:14 +1100 Message-Id: <1106265794.18397.17.camel@gaston> Mime-Version: 1.0 X-Mailer: Evolution 2.0.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2005-01-20 at 15:39 -0800, Andrew Morton wrote: > Matt Mackall wrote: > > > > I'm seeing radeonfb on my ThinkPad T30 go weird on reboot (lots of > > horizontal lines) and require powercycling to fix. Worked fine with 2.6.10. > > Which radeon driver? CONFIG_FB_RADEON_OLD or CONFIG_FB_RADEON? > > (cc Ben, who is the likely cuprit ;) > > Which -mm2, btw? 2.6.10-mm2 or 2.6.11-rc1-mm2? > > Did you try the corresponding -mm1? /me curses possible BIOS crap ... radeonfb tries to restore initial mode when the module is closed, which wouldn't work for a VGA text thing in fact... I suspect something cause driver remove() routines to be called on reboot, can you confirm ? Or is it a module that gets removed ? It may well be a problem that has always been there (regardless of the radeon driver version) and just triggered by something the kernel does on reboot... Ben.