Hi there,
I have the following:
OS: Linux Mint 18.3 Sylvia MATE 64-Bit
Monitor: Dell U3417W
http://www.dell.com/ed/business/p/dell- ... monitor/pd
Graphics Card: HIS IceQ X2 R9 280x
http://www.hisdigital.com/id/product2-772.shtml
Using the HDMI port, I cannot get a 3440x1440 resolution. 2650x1080 works. I have tried creating modes with lower refresh rates to no avail. The monitor will just go black until I disconnect/reconnect the HDMI port. I'm using a secondary monitor on the DVI port for troubleshooting.
If I use the Integrated graphics HDMI port on my mobo, I can get 3440x1440 no problem.
If someone can get me started, I can post some log dumps here...
Dell U3417W Monitor + R9 280X Graphics Card - Cannot achieve 3440x1440 resolution
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Re: Dell U3417W Monitor + R9 280X Graphics Card - Cannot achieve 3440x1440 resolution
Looks like I might just be out of luck with how little this graphics card is supported, as per the sticky.