I tried to contact the author of the program, but doesn't seem to get any response, and since this isn't integrated into Xorg (yet), it would be nice to have the support here. (This does not apply for the 830M chip as it doesn't have integrated graphics support) The ebuild description should also be updated to Utility to patch VBIOS of Intel 830/845/852/855/865/910/915/945 chipsets
Created attachment 103514 [details, diff] 915resolution-0.5.2-830.patch
Created attachment 103515 [details, diff] 915resolution-0.5.2-830.patch 830M/MG not MP
New revision 0.5.2-r1 added that uses this patch, thanks.