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Date: Fri, 22 May 2009 20:18:26 +0200
From: Niel Lambrechts <niel.lambrechts@...il.com>
To: "linux.kernel" <linux-kernel@...r.kernel.org>
Subject: Re: BUG: blank screen - unless keyboard/synaptic combo
(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@...ux-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
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