How to get full screen display?

[Vikas.Bhasin at britishairways.com]

Hi All,

I've recently installed Fedora on my Dell laptop which has got 15.4" 
screen. I tried all available resolutions but could not get proper display 
covering full screen Can anyone help me do the setting so as to get full 
15.4" screen display? 

Also, when i shuts down the system, after exiting out of GUI mode it 
displays information of services shutting down in text mode. At this time, 
the text does not display properly and i frequently get vertical lines on 
the display. Can this be rectified ?

Any help is appreciated.

Thanks and Regards,
Vikas
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