Fix: Xmobar hidden by windows in Xmonad
I had this problem when I started up X this morning that Xmobar in my configuration was being hidden by windows, like they were displayed over it. My configuration had not changed in this regard for about 2 years and I had never come across this problem before, so I went to have a look on the Arch Forums. I came across this thread and whilst there is a number of solutions here what worked for me was the following:
$ vim ~/.xmonad/xmonad.hs # Check config $ xmonad --recompile
Then hit mod-q and it was back to normal.
Update
A day later, the same problem came up again when starting my work PC. I took another look at that same thread where the posters had suggested that it is a bug in Xmobar causing the problem. So I downgraded to 0.15-1 using the downgrade utility from AUR and this time my problem is resolved.
Update 2
This is seemingly fixed in 0.17-1.