Re: BUG: blank screen - unless keyboard/synaptic combo

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please attach the dmesg output after S4 resume.

thanks,
rui

On Sat, 2009-05-23 at 02:12 +0800, Niel Lambrechts wrote:
> (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
> 

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