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KDE Neon install problem ( Ryzen 2400G )

onenew
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Hello there,

I'm rather new to Linux desktop ( had Debian for server for a while ) and wanted to try KDE Neon. My system is

AMD Ryzen 5 2400G ( therefore Vega 11 Onboard graphics )
Asus B450M-A
LG 34UM69 Ultra Wide monitor ( 2560 x 1080 )

When I tried to install from usb stick, I get splash logo then a blank screen after a while a warning about IOMMU perf counter and then screen goes all blank and no progress. I searched for a solution but all ones are after installing ( via grub options etc ) which I couldn't manage yet.

There are fair number of people here on this forum having similar issue , I think it would be nice if someone helps for " integrating " Vega drivers to install or have a custom ISO etc. or simply a solution letting people to install Neon.

Thanks in advance

PS : I also tried installing Debian-stable but had a problem with screen getting scrambled but it has an " excuse " of having ancient kernel.
j8a
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Hi,
I think whether you can search this on the browser and find some useful solutions.
IOMMU perf counter

Please, also take a look at this post.
https://forum.manjaro.org/t/amd-vi-unab ... er/56777/5
User avatar robgriff444
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Neon is on 4.15 kernel and your Ryzen needs later than that. Phoronix have a few articles but I think 4.17 is where it gets good enough support. Take a look at this article and see what else you can find on phoronix:

https://www.phoronix.com/scan.php?page=article&item=ryzen-2400g-may&num=1

 
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