Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

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 installed Ubuntu on my HP ProBook 4740s. When I tried to install new graphic card drivers, Unity doesn't start, or worse, I get the low graphic mode(and the screen freezes). I have tried installing the drivers directly from the manufacturer and changing the drivers in the Additional Hardware Driver menu from the default setting.

I would rather install them directly from the manufacturer.

Perhaps this is helpful:

Output of lspci | grep VG

00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Thames [Radeon 7550M/7570M/7650M]
share|improve this question
Can you disable the integrated Intel GPU in the BIOS? – meskobalazs Jul 25 '13 at 12:17
Not really an option because mostly I want to use the Intel GPU because it consumes less power and use the AMD one only when I need to.And I dont want to reboot always my computer to do that.For that I need the drivers and AMD Catalyst. – user178074 Jul 25 '13 at 15:20
Well, I am not entirely sure, but I think Catalyst does not support multi GPU setup. – meskobalazs Jul 25 '13 at 15:46

Your Answer


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

Browse other questions tagged or ask your own question.