From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753025AbZEVSTP (ORCPT ); Fri, 22 May 2009 14:19:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754239AbZEVSTA (ORCPT ); Fri, 22 May 2009 14:19:00 -0400 Received: from mail-ew0-f176.google.com ([209.85.219.176]:59448 "EHLO mail-ew0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754170AbZEVSS7 (ORCPT ); Fri, 22 May 2009 14:18:59 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=GEkHZhJdb45WmHdkwPzABGQs9mTVPWBbMA7x9g4TkhCPMZJNrA4Bu3Hrj9dXc1tAGi enVSk6NE2l0HU39Hs5By4d77WEf32+uom7jLLF347jzgOwGQ27FZzxI77aEU2SaB04Nx 4ZT2nRD8FNQ3JGTKBlzC1ANZxrV0pcc+5bQh8= Message-ID: <4A16EC72.1000802@gmail.com> Date: Fri, 22 May 2009 20:18:26 +0200 From: Niel Lambrechts User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1pre) Gecko/20090521 Shredder/3.0b3pre MIME-Version: 1.0 To: "linux.kernel" Subject: Re: BUG: blank screen - unless keyboard/synaptic combo References: <4A12FCB2.6090409@gmail.com> <4A15DC88.5070005@gmail.com> <1242963556.32574.59.camel@rzhang-dt> In-Reply-To: <1242963556.32574.59.camel@rzhang-dt> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (fixed top posting) On 05/22/2009 05:39 AM, Zhang Rui wrote: > On Fri, 2009-05-22 at 06:58 +0800, Niel Lambrechts wrote: > >> Cc's added, attached lspci output. >> >> On 05/19/2009 08:38 PM, Niel Lambrechts wrote: >> >>> I have a strange problem in that during a resume from hibernate my >>> text console (or X) remains blank - that is, until I simultaneously >>> press a keyboard key and touch the synaptic pad. It is not sufficient >>> to press just one or the other, it needs to be done simultaneously and >>> it resumes fine after doing this. >>> > is this a regression or it exists on all the kernel you've tried? > Hi Zhang, It is not a recent regression, all of the kernels I tried back to 2.6.28 shows the same problem. The test results I posted last night was with 2.6.30-rc6. I suspect it did not happen in 2.6.27, but I might be wrong since I could not bisect that far back (I am using EXT4 and have too many issues to bisect that far back). > please remote login the box after resume, and get the output of > "xrandr --verbose". > When I resume from suspend to RAM there is no problem. When I resume from hibernate, my laptop actually remains unusable until I do the combination of things I mentioned. I cannot log in from remote or even ping the laptop, except if I first press the mentioned key combo. Before this, the display is either entirely blank or sometimes there is a white cursor in the top left corner. The blank screen happens in runlevel 3 without X or "i915" loaded - I'm not sure but I suppose you want the "xrandr" output for another reason. It is interesting that it happens regardless of whether I am using Intel integrated graphics or Mobility Radeon HD 3650 (my laptop has both and I can enable one at a time). I boot the system with vga=791 and it is using vesafb for console. I attached the output you asked for below after hibernating an Xorg session, but this is from just after pressing the combo as I could not log in over the network with the laptop in the blank state. Thanks, Niel niella@linux-7vph:> xrandr --verbose Screen 0: minimum 320 x 200, current 1600 x 1024, maximum 3840 x 1200 VGA disconnected 1600x1024+0+0 (0x3d) normal (normal left inverted right x axis y axis) 0mm x 0mm Identifier: 0x3b Timestamp: 184631 Subpixel: unknown Clones: CRTC: 0 CRTCs: 0 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: 1600x1024 (0x3d) 136.4MHz *current h: width 1600 start 1704 end 1872 total 2144 skew 0 clock 63.6KHz v: height 1024 start 1025 end 1028 total 1060 clock 60.0Hz LVDS connected 1600x1024+0+0 (0x3d) normal (normal left inverted right x axis y axis) 331mm x 207mm Identifier: 0x3c Timestamp: 184631 Subpixel: horizontal rgb Clones: CRTC: 1 CRTCs: 1 Transform: 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 filter: EDID_DATA: 00ffffffffffff0030ae554000000000 0011010380211578ea87f594574f8c27 27505400000001010101010101010101 0101010101018c41807a71b011403020 33004bcf100000197434802071b01440 302026004bcf100000190000000f00d1 0a32d10a281101004ca35532000000fe 004c544e31353455322d4c30350a0011 PANEL_FITTING: full_aspect supported: center full_aspect full BACKLIGHT_CONTROL: combination supported: native legacy combination kernel BACKLIGHT: 4722 (0x00001272) range: (0,4722) 1600x1024 (0x3d) 136.4MHz *current +preferred h: width 1600 start 1704 end 1872 total 2144 skew 0 clock 63.6KHz v: height 1024 start 1025 end 1028 total 1060 clock 60.0Hz 1920x1200 (0x3e) 167.8MHz -HSync -VSync +preferred h: width 1920 start 1968 end 2000 total 2298 skew 0 clock 73.0KHz v: height 1200 start 1203 end 1206 total 1217 clock 60.0Hz 1920x1200 (0x3f) 134.3MHz -HSync -VSync h: width 1920 start 1968 end 2000 total 2208 skew 0 clock 60.8KHz v: height 1200 start 1202 end 1208 total 1220 clock 49.8Hz 1600x1200 (0x40) 162.0MHz +HSync +VSync h: width 1600 start 1664 end 1856 total 2160 skew 0 clock 75.0KHz v: height 1200 start 1201 end 1204 total 1250 clock 60.0Hz 1400x1050 (0x41) 122.0MHz +HSync +VSync h: width 1400 start 1488 end 1640 total 1880 skew 0 clock 64.9KHz v: height 1050 start 1052 end 1064 total 1082 clock 60.0Hz 1280x1024 (0x42) 108.0MHz +HSync +VSync h: width 1280 start 1328 end 1440 total 1688 skew 0 clock 64.0KHz v: height 1024 start 1025 end 1028 total 1066 clock 60.0Hz 1280x960 (0x43) 108.0MHz +HSync +VSync h: width 1280 start 1376 end 1488 total 1800 skew 0 clock 60.0KHz v: height 960 start 961 end 964 total 1000 clock 60.0Hz 1024x768 (0x44) 65.0MHz -HSync -VSync h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.4KHz v: height 768 start 771 end 777 total 806 clock 60.0Hz 800x600 (0x45) 40.0MHz +HSync +VSync h: width 800 start 840 end 968 total 1056 skew 0 clock 37.9KHz v: height 600 start 601 end 605 total 628 clock 60.3Hz 800x600 (0x46) 36.0MHz +HSync +VSync h: width 800 start 824 end 896 total 1024 skew 0 clock 35.2KHz v: height 600 start 601 end 603 total 625 clock 56.2Hz 640x480 (0x47) 25.2MHz -HSync -VSync h: width 640 start 656 end 752 total 800 skew 0 clock 31.5KHz v: height 480 start 490 end 492 total 525 clock 59.9Hz