fixes resolution setup

[leonardpitzu]

If the resolution is different from 1024x768 the script does not update the resolution any more.
This update allows the resolution and depth to be updated regardless of the current value.

[fcwu]

this line

sed -i "s/.*exec /usr/bin/Xvfb :1 -screen.*/exec /usr/bin/Xvfb :1 -screen 0 $RESOLUTION/" /usr/local/bin/xvfb.sh

It mixes sed separator "/" and path "/". Does this command run correctly?

[leonardpitzu]

It does for me - i tested it a few minutes ago. I just saw this fixes #136

[fcwu]

@leonardpitzu
I tried this command on Ubuntu 18.04 and returned error

$ sed "s/.*exec /usr/bin/Xvfb :1 -screen.*/exec /usr/bin/Xvfb :1 -screen 0 $RESOLUTION/" /etc/resolv.conf
sed: -e expression #1, char 15: unknown option to `s'

[leonardpitzu]

i used ash (changes things a bit). this works:

NEW=$(echo "exec /usr/bin/Xvfb :1 -screen 0 $RESOLUTION" | sed 's///\//g')
sed -i '/'"-screen"'/s/.*/'"${NEW}"'/' /usr/local/bin/xvfb.sh