So now I am in funny situation.
I cannot install fglrx driver otherwise my display resolution is stuck to 1024x768 but I cannot stay with the default driver because laptop is boiling (overheating problem)
In LM13 I was able to install the proprietary driver very easily and resolution was prefect.
But of course LM13 couldn't support MTP so I couldn't connect my new smartphone (only MTP mode available).
I'm wondering why I don't go back to windows7...