Created attachment 116062 [details]
photo

This is my first bug report here, so I hope i got everything right.

My system is Fedora 22. My GPU is a Sapphire 280x OC. My secondary screen,
connected via dvi, is showing strange vertical stripes, ca 3 cm wide. It seems
like someone cut the actual image in stripes and glued it together slightly
overlapping with flickering borders. 

If I take a screenshot everything looks normal (as it actually should look).

If I use it as the only screen, the stripes are also there.
(Is it a problem with the screen or the dvi connection?) I tried the second dvi
connection with the same result.

Using Windows, the screen has no issues.

output of xrandr:
http://paste.fedoraproject.org/225798/67516614

output of glxinfo:
http://paste.fedoraproject.org/225799/43267525

As mentioned, screenshots show the image as it should be, I had to take a photo
of the screen. I used a text file with the repeated series if numbers from 1 to
7.So one can see where the overlapping I mentioned happens (also in the spacing
of the buttons, missing glyphs etc..)
for example, after the first 1-7 sequence, the 1 and 2 are left out and so on.
I am sorry but I found no better way to show it, except making a video

If you need more information please let me know.