Trouble shooting: xrandr, external monitor remains blank (black)

[Steven Webb]

Hi Alex,

I had a bit of trouble compiling ati 6.9.0, but I've finally managed
it. Unfortunately the result is still the same.

I also tried manually specifying my configuration but got a Sig11

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x7e) [0x80c780e]
1: [0xb7fb3420]
2: /usr/bin/X(xf86RandR12SetRotations+0x6b) [0x80f9d2b]
3: /usr/bin/X(xf86CrtcScreenInit+0x9e) [0x80f588e]
4: /usr/lib/xorg/modules/drivers//radeon_drv.so(RADEONScreenInit+0x1853)
[0xb7b213a3]
5: /usr/bin/X(AddScreen+0x1fc) [0x8073d9c]
6: /usr/bin/X(InitOutput+0x21e) [0x80a9c4e]
7: /usr/bin/X(main+0x296) [0x8074526]
8: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7d49450]
9: /usr/bin/X(FontFileCompleteXLFD+0x201) [0x8073a91]

Fatal server error:
Caught signal 11.  Server aborting

The reason I had trouble compiling 6.9.0 was that ./configure didn't
pick up all of the dependencies. I'm not entirely sure what it missed
but one of:

build-essential
xserver-xorg-dev
x11proto-xinerama-dev
x11proto-xf86misc-dev
x11proto-gl-dev
mesa-common-dev

Cheers.

Steve.

2008/7/10 Alex Deucher <alexdeucher at gmail.com>:
> On Thu, Jul 10, 2008 at 2:53 AM, Steven Webb
> <steven.daniel.webb at gmail.com> wrote:
>> 5 minutes later it stopped working again. Any advice on how to debug
>> this would be greatly appreciated.
>>
>
> If you are not already, can you try ati 6.9.0?
>
> Alex
>
>> Steve.
>>
>> 2008/7/10 Steven Webb <steven.daniel.webb at gmail.com>:
>>> Update:
>>>
>>> My computer froze and when I rebooted (sysrq + RUB) the memcheck
>>> displayed on the external monitor (which it hadn't been doing) and
>>> then everything resumed correctly. I'm not sure why the external
>>> monitor was working correctly under microsoft windows and nowhere
>>> else.
>>>
>>> Steve.
>>>
>>> 2008/7/9 Steven Webb <steven.daniel.webb at gmail.com>:
>>>> Problem: The external ViewSonic VA1912w monitor attached to my laptop
>>>> at work stays blank (black) and refuses to display anything. The light
>>>> on the monitor stays orange (no signal?). My external NEC monitor at
>>>> home works correctly. The ViewSonic works correctly when I boot into
>>>> microsoft windows; therefore, I do not believe that the problem is
>>>> hardware based.
>>>>
>>>> xrandr appears to work correctly; however, the monitor does not switch on:
>>>>
>>>> two:~/>xrandr
>>>> Screen 0: minimum 320 x 200, current 1280 x 800, maximum 2720 x 900
>>>> VGA-0 connected (normal left inverted right x axis y axis)
>>>>  1440x900       59.9 +   59.9
>>>>  1152x864       74.8
>>>>  1024x768       84.9     75.1     70.1     60.0
>>>>  832x624        74.6
>>>>  800x600        84.9     72.2     75.0     60.3     56.2
>>>>  640x480        84.6     75.0     72.8     66.7     60.0
>>>>  720x400        70.1
>>>> LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
>>>>  1280x800       59.5 +   60.0*
>>>>  1280x768       60.0
>>>>  1024x768       60.0
>>>>  800x600        60.3
>>>>  640x480        59.9
>>>> S-video disconnected (normal left inverted right x axis y axis)
>>>> two:~/>xrandr --output LVDS --pos 0x100 --output VGA-0 --pos 1280x0 --auto
>>>> two:~/>xrandr
>>>> Screen 0: minimum 320 x 200, current 2720 x 900, maximum 2720 x 900
>>>> VGA-0 connected 1440x900+1280+0 (normal left inverted right x axis y
>>>> axis) 410mm x 256mm
>>>>  1440x900       59.9*+   59.9
>>>>  1152x864       74.8
>>>>  1024x768       84.9     75.1     70.1     60.0
>>>>  832x624        74.6
>>>>  800x600        84.9     72.2     75.0     60.3     56.2
>>>>  640x480        84.6     75.0     72.8     66.7     60.0
>>>>  720x400        70.1
>>>> LVDS connected 1280x800+0+100 (normal left inverted right x axis y
>>>> axis) 0mm x 0mm
>>>>  1280x800       59.5 +   60.0*
>>>>  1280x768       60.0
>>>>  1024x768       60.0
>>>>  800x600        60.3
>>>>  640x480        59.9
>>>> S-video disconnected (normal left inverted right x axis y axis)
>>>>
>>>> OS: Ubuntu Hardy Herron 8.04
>>>> Laptop: Toshiba A70/7001
>>>> Video Card: ATI Radeon Mobility 9100IGP
>>>> External Monitor: ViewSonic VA1912w
>>>> Native res on external monitor 1400x900
>>>>
>>>> This laptop/monitor combination works correctly under microsoft
>>>> windows, but only when I enable composite synchronization (I don't
>>>> know how to do this under X).
>>>>
>>>> Any information/advice would be greatly appreciated. I hope I have
>>>> provided all relevant info.
>>>>
>>>> Cheers.
>>>>
>>>> Steve.
>>>>
>>>
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