[X2Go-User] xrandr settings - how do you handle this?

[Andrey Malyshev]

Hi Michael:
Thanks for the input, it is very useful for me as I had no idea about
wmctrl. As far as I can understand though, wmctrl would change the window
size on the local side, so if I connect to a desktop session it would be
just rescaled, which is not always what I want. I want to change the
resolution on the remote side so it coincides with the native resolution on
the local one. Then I need xrandr on the remote. The combination of the two
can actually do what I want: remove some blurring due to interpolation etc.
Regards,
Andrey

On Mon, Feb 13, 2023 at 8:44 PM Michael Ashley <m.ashley at unsw.edu.au> wrote:

> Hi Andrey & Neal,
>
> Another command that might be helpful is wmctrl, from the man page:
>
>   wmctrl is a command that can be used to interact with an X Window
> manager that is compatible with the EWMH/NetWM specification.  wmctrl can
> query the window manager for information, and it can request that certain
> window management actions be taken.
>
> And here is something I use to resize and position an X2GO session on one
> monitor:
>
>   wmctrl -r X2GO -e 0,0,0,3768,2123
>
> Regards,
> Michael
>
> On Mon, Feb 13, 2023 at 02:11:37PM +0100, Andrey Malyshev wrote:
> >
> >    Hi Neal,
> >    Here how I do it:
> >    $cat  ~/bin/setdisplaymode
> >    #!/bin/bash
> >    #
> >    if [ -z $1 ]; then
> >            echo "Usage: $0 mode, e.g:"
> >            echo "$0 1920x1200"
> >            echo "$0 1680x1050"
> >            echo "$0 1280x1024"
> >            echo "$0 1280x960"
> >            exit -1
> >    fi
> >    MODE=$1
> >    # find a connected monitor
> >    #
> >    MONITOR="`xrandr --listmonitors | awk '/0:/ {print $4}'`"
> >    if [ ! -z $MONITOR ]; then
> >            echo "Setting $MODE mode on $MONITOR"
> >            # set the resolution
> >            xrandr --output $MONITOR --mode $MODE 2>&1 >/dev/null
> >    else
> >            # try to set the resolution using some standard monitor names
> >            echo "Trying to set $MODE mode..."
> >            xrandr --output DVI-I-1 --mode $MODE 2>&1 >/dev/null
> >            xrandr --output DVI-D-0 --mode $MODE 2>&1 >/dev/null
> >    fi
> >    On Mon, Feb 13, 2023 at 1:55 PM Neal Becker <[2]ndbecker2 at gmail.com>
> >    wrote:
> >
> >    Do you connect to a running x2go session using screens with different
> >    resolutions?
> >    Let's say I started an x2go session (xfce) from my laptop, which
> >    happens to be 1920x1600.  Later I connect to that same session, this
> >    time using a monitor with say 3840x2160.  Now I need to resize
> >    everything.  Going the other way is even worse.
> >    How do you handle this?
> >    Thanks,
> >    Neal
> --
> Professor Michael Ashley                          School of Physics
> University of New South Wales     http://www.phys.unsw.edu.au/~mcba
>
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