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Hi guys ! I have a laptop fujitsu AH531/GFO with an Intel HD 3000 and a Nvidia GT525m. After i installed everything and updated all the stuff i noticed that Linux was using the Intel video instead of the mobile one so i started reading all over the forums and found out that Linux isn't very mobile friendly and then found out that Bumblebee project and installed everything as mentioned in the guide what led me to the conclusion that i could finally use my GT525m But then after using the laptop for about like 6 hours i started having a headache which is not common for me because i spent like 8 hours per day on the computer but on Windows instead of Linux. So do you have any suggestions how could i fix the problem with the display???

Well you can only change the screen refresh rate. I would think 'nvidia-settings' would be the place to do that but I don't have an nvidia card so I can't check it.

From a terminal running:
Will output the available and current screen resolution and refresh rates. ( + is the best mode * is the current mode). Most laptops have a 60Mhz refresh rate, but if yours is capable of supporting higher refresh rates then you can change it with something like:
Which isn't permanent so you have to load it at each startup. See this post:

http://askubuntu.com/questions/59621/ho ... fresh-rate

xrandr
Screen 0: minimum 320 x 200, current 1360 x 768, maximum 8192 x 8192
LVDS1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
1366x768 60.0 +
1360x768 59.8* 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

This is the thing )) I fixed it now its only a matter of time thanks for the help

Jeratull wrote:how could i fix the problem with the display???

Turn on font hinting and antialiasing. You don't say what desktop environment you're using. In Cinnamon select Cinnamon Settings > Fonts - the last two options are what you want.