I'm currently investigating what makes my Dell Studio 1558 so slow sometimes.
I noticed that it was getting really hot, and started checking temperature. It seems that my GPU (AMD Radeon HD 5470) is getting really really hot (even on a laptop stand). While standing on a desk, it easily gets to 80°C (176°F)
I'm using the fglrx version that came with Ubuntu 11.10, the Catalyst 11.8 driver.
So, my questions now are:
- What are the risks of an overheated GPU?
- Does an overheated GPU cause my laptop to slow down?
- Can I fix this?
I tried installing Catalyst 11.12 manually, but it kept on saying it found an older installation (sudo apt-get purge fglrx* was not enough it seemed).
In "Additional Drivers", I am not able to install the post-release version of fglrx
When I remove fglrx, I only get a black screen at boot
Dell Studio 1558 - i5 CPU @ 2,40 GHz - 8GB DDR3 memory - AMD HD 5470