LXPanel (v 0.5.12-2)
My monitor setup is like this:
Monitor 2 is a laptop screen, and 1 is stationary.
Whenever I plug in monitor 1, and run this configuration:
xrandr --output LVDS1 --mode 1600x900 --pos 1920x320 --rotate normal --output VGA1 --mode 1920x1080 --pos 0x0 --rotate normal
The panel will appear at the red line in the image (I assume, as I can only see the right side of the panel on monitor 2), and for some reason disappear completely after a minute.
As you might imagine, I am moving around a lot with the laptop. So making a permanent change in the config is undesirable.
I have not found any workaround for this, other than switching to Tint.