I had the same issue:
- close the lid of my ubuntu 14.04 laptop
- laptop goes in suspend
- wake up to a black screen (reboot or console and kill x to get desktop back)
fiddled around with powertools and no luck.
BUT:
Light locker (screensaver) settings where also set to start a screen saver etc.
===Disabled light locker and now===
Close lid->suspend->open lid->wakeup is working!
So check if multiple screen savers/powertools are interfering...
I had the same issue:
- close the lid of my ubuntu 14.04 laptop
- laptop goes in suspend
- wake up to a black screen (reboot or console and kill x to get desktop back)
fiddled around with powertools and no luck.
BUT:
Light locker (screensaver) settings where also set to start a screen saver etc.
===Disabled light locker and now===
Close lid->suspend->open lid->wakeup is working!
So check if multiple screen savers/powertools are interfering...