Feisty: x_mode does it works?

[Philipp Hanselmann]

Hi David

We have 350 schools, and their setups mostly have different brands of  
screens and refurbished computers. Our technicians don't have the 
technical capacitive to edit xf86config manually!

Our actual thin client solution called OpenLab supported these X_MODES. 
Meanwhile I noticed that this is fixed in Gusty, but I still need it for 
the actual version...;-(.

Philipp


David Van Assche schrieb:
> Hi Philip,
>   I ran into a similar problem, as in my school the computers are 
> practically all on widescreens, which are not detected correctly with 
> the auto X thin client setup. I too, tried to use the X_MODE variable 
> in lts.conf without too much luck. I asked on the #edubuntu channel 
> and was informed that these variables are not yet supported. There is 
> a work around though, the XF86CONFIG=/location/to/myownxorg.conf does 
> work, and allows you to set within it the specific details of each 
> computer that way. I have tried this only for [default] so I'm not 
> sure if this will work for each [mac:address:here] setup.
>
> Kind Regards,
> David Van Assche
>
> On 9/10/07, *Philipp Hanselmann* <philipp at schoolnet.na 
> <mailto:philipp at schoolnet.na>> wrote:
>
>     Hi
>
>     I our computer lab with refurbished thin clients we have different
>     sorts
>     of CRT screen. Mostly they have sizes between 15 and 17''.
>     Now we have some 17'' screen which get auto detected with a resolution
>     of 1600x1200 during the thin client start.
>
>     Like I know from previous ltsp versions, the resolution modes can be
>     defined in /opt/ltsp/i368/etc/lts.conf, like this:
>
>     X_MODE_1="1024x768"
>     X_MODE_2="800x600"
>
>     I did this but without any success up to know. I checked the client
>     boots script /opt/ltsp/i386/etc/init.d/ltsp-client-setup witch is
>     doing
>     the graphical setup, and found the following lines inside:
>
>     <snip>
>     X_MODE=$( echo "$X_MODE_0 $X_MODE_1 $X_MODE_2" | sed -r 's/ +/, /g;s/,
>     *$//g')
>     if [ -n "$X_MODE" ]; then
>         preseed $xserver_package/config/display/modes "$X_MODE"
>     fi
>     </snip>
>
>     So it looks like this is supported by Feisty!
>
>     I also tried directly from the client (CRTL-ALT-F1) this command:
>
>     echo 'set  xserver-xorg/config/display/modes 800x600' |
>     debconf-communicate xserver-xorg
>
>     With the hope that after a restart of X11 (CRTL-ALT-BACKSPACE), the
>     client will choose 800x600 as his resolution, but I only got this
>     error
>     message:
>
>     debconf: DbDriver "config" could not write
>     /var/cache/debconf/config.dat-new: Read-only filesystem
>
>
>     Addistionaly I tried the same on the server:
>
>     1.) chroot /opt/ltsp/i368
>     2.) echo 'set  xserver-xorg/config/display/modes 800x600' |
>     debconf-communicate xserver-xorg
>
>     This time without an error message. I figured out that I get
>     applied in
>     /opt/ltsp/i386/var/cache/debconf/config.dat.
>
>     But still there is no effect on the client screen after a reboot.
>
>     The only thing, what was helping is this manually way, which must be
>     done after reboot ;-(.
>
>     1.) login  on the client as root (CTRL-ALT-F1)
>     2.) edit with vi /etc/X11/xorg.conf
>     3.) delete all not needed modes
>     4.) restart the X11 screen (CRTL-ALT-BACKSPACE)
>
>     May somebody can  assist here?
>
>     Philipp
>
>
>     But
>
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SchoolNet NA - Youth Empowerment through Information and Communication Technology

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Philipp Hanselmann
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