Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have very strange problem. After suspending to ram notebook doesn't wakes up, only leds and fan switches on, no HDD activity and display stays off(without backlights-completly off).

If I press numlock- led doesn't switches, all buttons are not warkable. I have installed uswsusp and tryed to use s2ram, but result is exactly similar. I tryed to remove fglrx, but useless.

I have HP Pavilion dv6 2055er with Ubuntu 12.04 on board and: 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4500/5100 Series]

How can I solve this problem?

share|improve this question

You can try this mate -

Good luck! :)

share|improve this answer
While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. – Mitch Oct 15 '12 at 5:43
Thank you, but useless.. This workaround helps when "the screen remains lit but black when you wake your machine" but I have no backlight on totally black screen. – Speranskiy Nov 22 '12 at 5:10

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.