Bug#869225: xmonad: Dropdowns and context menus broken

[Le Pu]

Package: xmonad
Version: 0.12-5+b1
Severity: important
Tags: newcomer upstream

Dear Maintainer,

Dropdowns and context menus either fail to get dispalyed or get
displayed on a different screen than the parent window. I have 3
monitors, one of which is a laptop screen.

This bug appears to be fixed upstream in version 0.13 (see:
https://github.com/xmonad/xmonad/issues/42). The temporary fixes listed
in the upstream bug report have (mostly) worked. Namely:

1. xprop -root -remove _NET_WORKAREA
2. ((modm, xK_b), sendMessage ToggleStruts)

The xprop fix does not work for windows in my laptop screen.
The ToggleStruts fix requires that (modm, xK_b) be pressed every time I
switch windows.

There is a 0.13 xmonad package in unstable that I have not been able to
test. Is it possible to get that backported?


-- System Information:
Debian Release: 9.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages xmonad depends on:
ii  libc6         2.24-11+deb9u1
ii  libffi6       3.2.1-6
ii  libgmp10      2:6.1.2+dfsg-1
ii  libx11-6      2:1.6.4-3
ii  libxext6      2:1.3.3-1+b2
ii  libxinerama1  2:1.1.3-1+b3
ii  libxrandr2    2:1.5.1-1
ii  x11-utils     7.7+3+b1

Versions of packages xmonad recommends:
ii  libghc-xmonad-dev  0.12-5+b1
ii  libghc-xmonad-doc  0.12-5
ii  xfonts-base        1:1.0.4+nmu1

Versions of packages xmonad suggests:
pn  gnome-session-flashback  <none>
ii  suckless-tools [dmenu]   42-2

-- no debconf information