AMD 290X and 4k screen (displayport)

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swejuggalo
Baby Hen
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AMD 290X and 4k screen (displayport)

Post by swejuggalo » Mon Jul 04, 2016 8:20

1. Screen flickers a lot at 4k.
2. Switch to lower resolution.
3. Switch back to 4k and now without flicker :)

Not sure the reason behind this. I have a Samsung UE590, 4k 60Hz, freesync supported screen with DP.

What I do know is that this is not a Sabayon limited issue. Ubuntu has the same issue (and same fix).

Using the open source drivers.

swejuggalo
Baby Hen
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Joined: Sat Jul 02, 2016 7:52

Re: AMD 290X and 4k screen (displayport)

Post by swejuggalo » Tue Jul 05, 2016 8:38

Same flicker on login screen. Haven't tried to fix that yet since I guess I need to do that manually in a configuration file (separate resolution settings).

Stupot
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Re: AMD 290X and 4k screen (displayport)

Post by Stupot » Tue Jul 05, 2016 18:23

Are you using the pro userspace drivers, or all open source drivers?

swejuggalo
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Re: AMD 290X and 4k screen (displayport)

Post by swejuggalo » Wed Jul 06, 2016 7:40

Using the open source drivers.

swejuggalo
Baby Hen
Posts: 14
Joined: Sat Jul 02, 2016 7:52

Re: AMD 290X and 4k screen (displayport)

Post by swejuggalo » Fri Aug 12, 2016 15:42

I've found out that disabling the freesync support in the screen fixes the flickering issues even in the login screen

jj598964
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Re: AMD 290X and 4k screen (displayport)

Post by jj598964 » Mon Aug 29, 2016 9:21

that is a very nice post...well done
Graduated from Soran University with First Class Degree with Honours in Computer Science.

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