Why does Ubuntu Freezes on ASUS K42DY laptop with RADEON HD6470M Graphics Card?

Posted by ix3 on Ask Ubuntu See other posts from Ask Ubuntu or by ix3
Published on 2012-11-04T02:26:45Z Indexed on 2012/11/04 5:23 UTC
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12.04

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64-bit

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asus

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hd6470m

Hi,I have an ASUS K42DY laptop with AMD Phenom II x2, 8 GB Ram , 500 GB Hard Drive and has a didicated ATI RADEON HD 6470M Graphics Card and I'm running Ubuntu 12.04 LTS 64bit on it. I have installed GNOME 3 and also followed this Make Ubuntu look like Mac OS X. I have also installed apps from the software center, getdeb & playdeb all of which worked fine. However, I noticed that Ubuntu freezes after inactivity let's say 1-3hrs. I have already set power setting to never standby or hibernate. This is completely annoying because all I can do is log-out via ctrl+alt+del or manually shut down and reboot my laptop. What should I do? By the way, this happens on all shells Unity, Gnome (even with the basic) and Cairo Dock.I set Swap Space at 8GB during installation.

Any help will be appreciated. Thanks!

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