[Bug 104412] RX 460 HDMI 4k 60fps not working, DisplayPort is.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104412

--- Comment #14 from S.H. <anaxi at aikq.org> ---
(In reply to Alfe from comment #12)
> (In reply to S.H. from comment #6)
> > Hello,
> > Last night I was able to get my hands on a Gigabyte RX460 and did some
> > testing.
> > Booting and normal startup with the Gigabyte also only used 4k at 30Hz but I
> > was able to reach 4k at 60Hz by adding a modeline via xrandr.
> > With the Saphhire I am not able to get 4k at 60Hz even with a custom modeline
> > set via xrandr.
> > Something seems broken here and I don't think both vendors messed up their
> > cards.
> 
> Hi!  Since I'm also trying around with this, it would be really helpful if
> you shared your modeline with which you were able to achieve 4k at 60Hz ;-)
> 
> Cheers, Alfe

Hi,
I use these three lines to achieve 60Hz output:
xrandr --newmode "mymode" 594  3840 4016 4104 4400  2160 2168 2178 2250 +hsync
+vsync
xrandr --addmode HDMI-A-0 mymode
xrandr --output HDMI-A-0 --mode mymode

Cheers,
Sven

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