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.
Please attach your xorg log, dmesg output, and your xorg config if you are using one.
There is no Xorg.log, but I found that this should provide the same information: journalctl -b _COMM=gdm-x-session (if not, I don't know how I get it) output: http://paste.fedoraproject.org/225830/43268051/
Created attachment 116063 [details] output of dmesg after reboot output of dmesg.
xorg.conf only has these lines: # List of modules which, when loaded, should make # Xorg crashes non-reportable. # Names should be without "_drv.so" suffix: BlacklistedXorgModules = nvidia, fglrx, vboxvideo
I figured out that this problem only occurs in 1680x1050 resolution (the native screen resolution). As all the fpaste output is no longer readable i will reupload everything as a text file. sorry for that.
Created attachment 117223 [details] glxinfo
Created attachment 117224 [details] Xorg.log
Created attachment 117225 [details] xrandr
If I replace the r280x with an old hd5850 everything works fine. (with the same connections and resolutions)
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