The issue is that with some audio & video drivers under Linux, the Intel 915-based chipset is not supported properly.
Check this link (it's just a Google search)
and read through some of the results (some are here on LQ) for a general idea what the problems are, and what people may have done to get around it.
If you can identify exactly which driver(s) or kernel components is/are returning that message to you, there may be an alternate driver you can use. Alternatively, for example if the problem is the sound driver, and you can live without sound, then just ignore the error
If it were me, if everything appeared to boot/install/function properly, and the system is stable, I would ignore the error until such time as something was obviously malfunctioning because of it (like no video or something)..
Lock & Load