Comment 15 for bug 958279

Hello everybody

I'm experiencing this bug too , I'm running Kubuntu 14.04 lts 64bit and using fglrx-updates (Radeon HD 7790)
I don't know if this applies to other setups... distros... different window-managers etc ... This is the only scenario
in which I could test and have this problem.

The steps I've taken to reproduce this behaviour are the following:

1 - Install fglrx-updates drivers

2 - Wait for the display to be switched off by the power-manager

3 - After the screen has fully switched off and entered stand-by mode, trying to move the mouse
or hitting any of the keys on your keyboard simply does not wake up the screen. Your display is permanently
stuck in sleep mode and you have to reboot your computer.

There's "just" something wrong with the computer telling the screen to wake up because
while the display is off, the system is still running I guess as I managed to avoid hard-resetting my computer
by using the terminal and issuing a shutdown command (going by memory, since the display is OFF).

I haven't tested the workarounds suggested above but I'll keep this post updated as soon as I try.