I've just installed Ubuntu 12.04 on my laptop (Asus X53sd). There was already windows 7 Professional installed, so I created new partitions and everything worked fine during the installation. (I installed windows and Ubuntu on the same day).
My laptop has 2 graphic cards: NVIDIA GeForce 610M and Intel(R) HD Graphics Family. I've installed the additional driver for NVIDIA which was recommended after the installation of the Ubuntu OS (which is NVIDIA-319). For the Intel card, no drivers were suggested.
Then suddenly , when working on the Linux environment, my screen started to freeze, while the laptop itself was still running (I noticed that since I was copying files from an external hard disk, I could hear it working and after I restarted the laptop, the files were all copied).
I've tried several possible solutions:
- change the driver to another possible one which was suggested (the previous version of the NVIDIA 319);
- install the driver manually, downloading it from the GeForce website. This solution didn't work because I was not able to install it.
- download several updates which were present but still didn't make my laptop working well;
- upgrade the system to Ubuntu 12.10. In this case, if I tried to change the driver, then I was no more able to log on my desktop, since my laptop was said to work in the "low graphics mode". If i left as it was, it kept on freezing.
Luckily I have an instant on/off button which allows me to switch off and on the laptop in less than 10 seconds, without losing my work, but it is still pretty annoying when the screen freezes.
All these problems are not present when I work on the windows partition.