It seems that this card works (properly) only with Chameleon versions up to 2210.
Newer versions (2215 and up) just won't recognise the card and NO framebuffer personality is loaded (regardless of input type and/or number of displays)
After reporting ^^this^^ to...
I have recently changed my graphics card from XFX HD4890 to XFX HD6570 (deviceID=6759, dual DVI + miniHDMI, HD-657X-ZNH3). The old one died, and I really hated the noise it was making, so I got the only passive cooled ATI I could find. I know the performance difference is huge...