Laptop does not wake up after suspend

This happens randomly. I have an П Павилион 17

When I suspend my laptop (whether by closing the сражение or any other way) sometimes it does not wake up afterwards. The only solution is to я вынудил - shut down my computer by холдинг the power button, and then turn it back on. It's getting annoying схвати I can't really predict when it will actually happen. Онлайн гve searched for solutions but I couldn't find anything useful.

Somewhere it was suggested that it was an Nvidia issue, but i don't have an Nvidia card. Upgrading from 14.04 to 15.04 didn't help either.

Is there any solution to this issue?

Thanks.