Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262617AbVDHAob (ORCPT ); Thu, 7 Apr 2005 20:44:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262638AbVDHAob (ORCPT ); Thu, 7 Apr 2005 20:44:31 -0400 Received: from rproxy.gmail.com ([64.233.170.197]:28641 "EHLO rproxy.gmail.com") by vger.kernel.org with ESMTP id S262617AbVDHAoX (ORCPT ); Thu, 7 Apr 2005 20:44:23 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=eJw/5VS/Lvdet8B+Gzaa6Wlbsu+dEzTxjoZGPas0CN4EVW8k9F+lIargY2dJblIRWUTwGVkxAx3fLohvEoUB3spTh5zYkRiwhg8QmqXbgxZ7gv0PEr3WyFC+DHRIrUsaaaapmyiiwlz9fBgQFOtwrEk4AuiipYxK0xFJLuAnSU8= Message-ID: <29495f1d05040717445728af5@mail.gmail.com> Date: Thu, 7 Apr 2005 17:44:23 -0700 From: Nish Aravamudan Reply-To: Nish Aravamudan To: Benjamin Herrenschmidt Subject: Re: Linux 2.6.12-rc2 Cc: Moritz Muehlenhoff , Linux Kernel list In-Reply-To: <1112913902.9568.304.camel@gaston> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit References: <1112827342.9567.189.camel@gaston> <20050407175026.GA5872@informatik.uni-bremen.de> <29495f1d05040711544695ce89@mail.gmail.com> <1112913902.9568.304.camel@gaston> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1918 Lines: 39 On Apr 7, 2005 3:45 PM, Benjamin Herrenschmidt wrote: > On Thu, 2005-04-07 at 11:54 -0700, Nish Aravamudan wrote: > > On Apr 7, 2005 10:50 AM, Moritz Muehlenhoff wrote: > > > Benjamin Herrenschmidt wrote: > > > > > 1. When resuming from S3 suspend and having switched off the backlight > > > > > with radeontool the backlight isn't switched back on any more. > > > > > > > > I'm not sure what's up here, it's a nasty issue with backlight. Can > > > > radeontool bring it back ? > > > > > > Before suspending I power down the backlight with "radeontool light off" > > > and with 2.6.11 the display is properly restored. With 2.6.12rc2 the > > > backlight remains switched off and if I switch it on with radeontool it > > > becomes lighter, but there's still no text from the fbcon, just the blank > > > screen. > > > > FWIW, I have the same problem on a T41p with 2.6.11 and 2.6.12-rc2, > > except that neither returns from suspend-to-ram with video restored on > > the LCD. I believe I was able to get video restored on an external CRT > > in either 2.6.12-rc2 or 2.6.12-rc2-mm1, but the LCD still didn't > > restore (can verify later today, if you'd like). I had dumped out the > > radeontool regs values before & after the sleep, in case they help. > > They are attached. > > > > I posted these problems in the "Call for help S3" thread, but no one responded. > > I would say the different value in LVDS_GEN_CNTL explains it. I'll see > if I can force radeonfb to save/restore this. Great! That seemed odd to me, as well. I'll be more than happy to try any patches (I'll take a look at the code tonight myself). Thanks, Nish - 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/