On Thu, 2009-05-28 at 23:27 -0500, Mike Hoy wrote:
> xorg.conf:
> Section "Monitor"
>  22     Identifier  "Configured Monitor"
>  23 EndSection
>  24 
>  25 Section "Screen"
>  26     Identifier  "Default Screen"
>  27     Monitor     "Configured Monitor"
>  28     Device      "Configured Video Device"
>  29     SubSection "Display"
>  30         Virtual 1024 1536
>  31     EndSubSection
>  32 EndSection
>  33 
>  34 Section "Device"
>  35     Identifier  "Configured Video Device"
>  36 EndSection
>  37 
>         
> I wonder, can I just change the value of 'Virtual 1024 1536'? Also I
> recognize the 1024 (1024x768) but what's the 1536?
> 
> And here's lspci -v
> 00:00.0 Host bridge: ATI Technologies Inc Radeon 9100 IGP Host Bridge
> (rev 02)
>     Subsystem: ATI Technologies Inc Device 1234
>     Flags: bus master, 66MHz, medium devsel, latency 64
>     Memory at d2000000 (32-bit, prefetchable) [size=32M]
>     Memory at d0000000 (32-bit, non-prefetchable) [size=4K]
>     Capabilities: <access denied>
>     Kernel driver in use: agpgart-ati
>     Kernel modules: ati-agp
> 
> 00:01.0 PCI bridge: ATI Technologies Inc Radeon 9100 IGP AGP Bridge
>     Flags: bus master, 66MHz, medium devsel, latency 99
>     Bus: primary=00, secondary=01, subordinate=01, sec-latency=68
>     I/O behind bridge: 00009000-00009fff
>     Memory behind bridge: d0100000-d01fffff
>     Prefetchable memory behind bridge: e0000000-efffffff
>     Kernel modules: shpchp
> 
----
I doubt any changes that you make to the 'virtual' will matter.

It's clear that your setup is trying to configure 'on the fly' and it
may prove useful to actually configure a video card section in xorg.conf

It would use 'radeon' module. You have 32 Megabytes of video ram which
will easily handle a hefty size screen.

I would suspect that something similar to 'system-config-display
--reconfig' is available on Ubuntu to write the configuration for you.

Perhaps something like... 'sudo /usr/bin/X -config' will do it.

I am sorry but I am not knowledgeable about Ubuntu utilities.

Craig


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