Re: [Ltsp-discuss] changing resolution on the fly with ctrl-alt-+ and ctrl-alt--

Jeff Roberts Thu, 06 May 2004 10:31:03 -0700

Awesome! Works like a charm. We finally have all of our hardware similar enough that we've done away with modelines and other extras. That has started me thinking though, I bet it would be fairly trivial to modify that even more to allow for a non gui session selection as well. If I come up with anything I think the list would be interested, I'll share.

Thanks again!
-Jeff

[EMAIL PROTECTED] wrote:

jeff,

Certainly it's possible. In fact, it probaby wouldn't be all that hard.

One of the first things the 'startx' screen script does, is grab the variables from the lts.conf file.
You could add code after the call to get the options, that displays a
menu.  Something like this:
LTSP Screen Resolutions
   1)  1024 x 768
   2)  800 x 600
   3)  640 x 480
Please enter a selection (1,2,3):
Then, they select 1, 2 or 3, and the script internally sets
the X_MODE_0 variable to either "1024x768", "800x600" or "640x480".
Here's the code that you can add to the top of the startx script:
====================================================================
if [ "${X_MODE_0}" = "ASK" ]; then
 X_MODE_0=""
 while [ -z "${X_MODE_0}" ]; do
   clear
   echo "LTSP Screen Resolutions"
   echo
   echo "  1)  1024 x 768"
   echo "  2)  800 x 600"
   echo "  3)  640 x 480"
   echo
   echo -e "Please enter a selection (1,2,3): \c"
   read MODE
   case "${MODE}" in
       1)  X_MODE_0="1024x768"
           ;;
       2)  X_MODE_0="800x600"
           ;;
       3)  X_MODE_0="640x480"
           ;;
       *)  echo "Invalid selection!"
           sleep 1
           ;;
   esac
 done
fi
===================================================================
All you need to put in lts.conf is:

X_MODE_0 = ASK

And it will ask the user what resolution they want.

it will get much trickier if you need to specify custom modeline info for the monitors, I'll leave that for an exersize for you.
Jim McQuillan
[EMAIL PROTECTED]
On Thu, 6 May 2004, Jeff Roberts wrote:
Is it possible to write a screen script in ltsp 4 to allow the user to select their resolution before running X? I have a lot of users that share terminals, and some of them still prefer 800x600 while most of them like 1024x768. I was able to get the ssh screen script running that was posted a while back but I really dont know where to start with creating one like I need.

-Jeff

[EMAIL PROTECTED] wrote:
On Mon, 3 May 2004, Jeff Roberts wrote:

I caught my typo while testing the lines on an ltsp 4 server.

It looks like these keys do work under ltsp 4, but the lower resolutions show a virtual desktop (viewport), is there any way to stop this, and show a full desktop?

Nope, X doesn't support that.

Also, I dont suppose there is an easy way to enable those keys on my older ltsp 3 box? How risky is updating my ltsp 3 to ltsp 4?

it should work exactly the same way on ltsp-3

Jim.
Jeff Roberts wrote:

hey everone,
I need to be able to use ctrl alt + and ctrl alt - to change resolutions
during a session.  I found a post that said I could do so if I had more
than one mode defined, but I cant seem to get it working.  I am using
the qvwm window manager and ltsp VERSION=3.0.4
here is my lts.conf:
[Default]
     SERVER             = 192.168.0.32
     XSERVER            = auto
     X_MODE_0 1024x768
     X_MODE_1 800x600
     X_MOUSE_PROTOCOL   = "PS/2"
     X_MOUSE_DEVICE     = "/dev/psaux"
     X_MOUSE_RESOLUTION = 400
     X_MOUSE_BUTTONS    = 3
     USE_XFS            = Y
     LOCAL_APPS         = N
     RUNLEVEL           = 5
Thanks,

Jeff

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Re: [Ltsp-discuss] changing resolution on the fly with ctrl-alt-+ and ctrl-alt--

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