[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 #78 from Ioannis Panagiotopoulos <yiannispana at hotmail.com> ---
(In reply to Julian from comment #76)
> (In reply to Ioannis Panagiotopoulos from comment #75)
> > Also tried this since I have the same problem, compiled the new_smc branch,
> > installed the kernel and the firmware, however the problem persists if I
> > boot it without radeon.dpm=0.
> 
> What card do you have?
> 
> You can try this as well: download and move the hawaii_k_smc.bin firmware
> image into /lib/firmware/radeon and rename it to hawaii_smc.bin (backup or
> delete the existing file). Boot into your normal unpatched Kernel and see if
> it works. That's what I'm doing right now and it works for me.
> 
> Just keep in mind that this might break your Linux install if it doesn't
> work (so having a live USB/CD and the backuped firmware file is handy).

I replaced the firmware file and run update-initramfs -u
The system still hangs when it starts X-server on boot.
My gpu is Club3D R9 390

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