On 09/09/2013 12:42 PM, g wrote: > tho it maybe a bad screen as suggested, i would try booting a live cd/dvd, > or, install cd/dvd from an earlier release than fedora 20, just to insure > that it is not a driver problem. You also need to remember that F20 is still in testing, and that the appropriate testing list might have more help for you.