The following patch is required to provide support for the GG00ER chipset
Could you confirm, please that http://cgit.freedesktop.org/xorg/driver/xf86-video-mga/commit/?id=5f1b04e86e79938c8158055a777280a649f95510 is the patch you meant? Thank you
Yes. The attached patch correspond to the back port of this git patch.
Created attachment 475434 [details] patch to provide support
This was fixed in 5.7: * Mon Feb 14 2011 Adam Jackson <ajax> 1.4.13-2 - mga-1.4.13-g200er.patch: Update for G200ER. (#661286, #656962, #651468)