On Monday 28 Dec 2015 21:05:56 john wrote: > Hmm, > thanks, I have now tried an old monitor and its screen > resolution was good (ie 1920x1080) so I think it's the monitor. > I have a R9 280 radeon card which is pretty new but the monitor is very > new (display port only, acer xb240h model) so I guess it's something do > do with that, perhaps EDID but not really sure. The whole graphics > stack is pretty bemusing and I would love to make sense of it all.
Have a look here for setting up your card: https://wiki.gentoo.org/wiki/Amdgpu and here for setting up the driver 'x11-drivers/xf86-video-displaylink' to get your DP going: https://wiki.gentoo.org/wiki/DisplayLink -- Regards, Mick
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