Hi. So finally registered in Linuxforums.

I've an ATI RS690m which requires firmware loaded to work properly and thus churn sustainable FPS.

On Debian the kernel logs state the following -

[ 1.051984] platform radeon_cp.0: firmware: requesting radeon/RS690_cp.bin
[ 21.793047] b43 ssb0:0: firmware: requesting b43/ucode5.fw
[ 22.038421] b43 ssb0:0: firmware: requesting b43/pcm5.fw
[ 22.165589] b43 ssb0:0: firmware: requesting b43/b0g0initvals5.fw
[ 22.262402] b43 ssb0:0: firmware: requesting b43/b0g0bsinitvals5.fw
[ 22.477041] b43-phy0: Loading firmware version 410.2160 (2007-05-26 15:32:10)
However Gentoo's kernel logs have no mention of the term 'firmware'. It's a custom kernel. It should at least request for the firmware, but that never happens.

I've enabled userspace kernel loading.