Graphics Glitch after suspending and resuming, only when pressing the sleep button

[Ashton van Niekerk]

Running Ubuntu 14.10

Going to the menu and clicking on the 'suspend' button, causes no problems on resume. Automatically suspending after a given time also has no problem.

However if I press the sleep button, it resumes with pixels of all colours randomly populating the screen.
When I move the mouse after that, my screen goes to sleep (like when the computer is turned off).
After moving my mouse again, the lockscreen displays as normal.

'sudo pm-suspend' results in only the Launcer having random coloured pixels on it. The checklist testing app had the same result. Clicking on a window reprints the launcer. Attached is an example.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Richard Casemore (skarard)]

I am experiencing exactly the same behaviour with Suspend from the menu and automatically suspending resuming normally.

I do not have a sleep button, though running 'sudo pm-suspend' results in a glitchy launcher on resume.

I first noticed the unity launcher glitching issue when I attached suspend to a hot key which runs this command:
dbus-send --system --print-reply --dest="org.freedesktop.UPower" /org/freedesktop/UPower org.freedesktop.UPower.Suspend