I am trying for days now to enable 3d of my ATI X 1900 under Debian GNU/Linux 7.6. I installed the xserver-xorg-drivers-radeon package, however this does not work. Specifically, I receive a similar error message as the user here: How to configure FOSS ATI drivers on Debian Wheezy and ATI RS880 [Radeon HD 4250]?
This is (drivers names etc. below are not mine, but similar):
[ 8.121829] [drm] Loading RS780 Microcode [ 8.156063] r600_cp: Failed to load firmware "radeon/RS780_pfp.bin" [ 8.156092] [drm:r600_startup] *ERROR* Failed to load firmware!
The hint usually given in the internet is to install the firmware-linux-nonfree package.
So my question is: Do you in any case have to install proprietary firmware, even when using free dirvers? Isn't it possible to stay completely free?