I've tried Mesa 9.2.2-1 and 10.0.0-1 on Debian Sid and Lubuntu 13.10.
Unfortunately both have issued false colors in games. They appear to be ABGR
instead of RGBA, thus blue becomes green, red becomes alpha etc.
Mesa 8.0.5-4 and Mesa 9.1.6 have no color problem.
I've created a bug report on freedesktop.org.
Bug report 72877:
The transitional solution is to install the old Mesa 8.0.X with "Force Version"
with the Synaptic package manager on new distributions.
AmigaOne X1000 (Nemo)
PA Semi Dual-core PA6T-1682M, 1.8GHz PowerISA™ v2.04+ CPU
"Xena" 500MHz XMOS XS1-L2 124
8GB DDR2 SDRAM
HIS Radeon HD 6870, 1 GB RAM
OCZ600MXSP 600 Switching power supply
RTL 8139/8139C/8139C+ network card
TSSTcorp CDDVDW SH-224BB dvd drive
ATA ST2000DM001-9YN1 SEAGATE HD
ATA ESA 3SF1240GB HD