Dear Maintainer,

There is a layout problem with Rhythmbox notifications on HiDPI screens, at
least on Cinnamon.

My setup:

  * A high-resolution screen, under Windows a factor of 1.5 (2 would be
Retina).
  * Having set the resolution to Double in Cinnamon settings. All applications
I use respect this setting.
  * With xrandr scaling the screen to 0.75x0x75, ending up with 1.5.

With GTK3 nearly everything is scaled well, including Rhythmbox. But a
notification in Cinnamon (I haven't tested Gnome 3), the layout is mangled. See
the attached screenshot. The image is also stretched wrong (width is twice the
size of the height).

Steps to reproduce under Cinnamon (or Gnome 3):

  * Set the resolution to Double in System Settings (in 'General')
  * Go to the end of a song.
  * Let Rhythmbox go to the next song, while the Rhythmbox window is not
focused.
  * See the notification that appears.

It should not be necessary to have a HiDPI screen, everything will just double
in size with a normal screen.

Both the notification immediately shown with the next song and the notification
in the list of notifications in the Cinnamon applet has the wrong layout.

This does not happen on a non-HiDPI screen.