[Bug 91880] Radeonsi on Grenada cards (r9 390) exceptionally unstable and poorly performing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91880

--- Comment #115 from Jonas <jojonintendo at tutanota.com> ---
I'll try to sum up, to help a little if some people are confused about the
process of "workarounding" it.


1) Go here: https://people.freedesktop.org/~agd5f/radeon_ucode/hawaii
2) Download every file.
3) Go here https://people.freedesktop.org/~agd5f/radeon_ucode/k/
4) Download hawaii_k_smc.bin
5) Rename this file to hawaii_smc.bin (to replace the one you have from step 2)
6) Put all those files in your "firmware" folder (in my case
/usr/lib/firmware/radeon), make a backup of those before, if you want.
7) Reboot & enjoy.

For some people it seems necessary to update initrd, but in my case (Arch
Linux), only a reboot gives me good DPM support and it almost never crashes. On
every firmware update on your system, you might have to repeat all the steps
(until those files are used on your distro by default).

I hope it is somewhat easier to get it working.

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