[Mesa-dev] [Bug 97260] R9 290 low performance in Linux 4.7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97260

--- Comment #70 from tarpoon at gmx.de ---
(In reply to Alex Deucher from comment #69)
> (In reply to Alex Deucher from comment #68)
> > The firmware was fixed a while ago.  Please make sure your distro is using
> > the latest firmware.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

Thanks a lot for the reply. My Distro is Kubuntu 16.04 with Oibaf PPA for MESA.

Replacing the content of /lib/firmware/radeon with the files found in
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/radeon
(I just deleted and redownloaded everything) and doing a "sudo update-initramfs
-u" restored the performance to normal levels using radeon (haven't tried
amdgpu yet).

Shadow of Mordor Benchmark FPS:
Kernel Version | Menu | AVG | MAX | MIN
Kernel 4.6.7 | 100 | 58 | 161 | 30
Kernel 4.10 (with new Firmware) | 100 | 58 | 114 | 30

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