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Need of patched BIOS for Asus notebook A4L (SiS M661FX)

Posted: Tue Nov 11, 2014 5:57 pm
by kesk
Hello,

I am looking for a patched BIOS (for widescreen support) for my Asus notebook (A4L) with SiS M661FX graphics card.

The latest available BIOS is this one: https://drive.google.com/file/d/0B7XnXs ... sp=sharing

or the official link to the asus support page for this laptop: http://support.asus.com/download.aspx?S ... eNzO8wP18L

Thanks in advance, and sorry for my bad English.

Re: Need of patched BIOS for Asus notebook A4L (SiS M661FX)

Posted: Thu Nov 13, 2014 2:32 pm
by edwin
You do know that IF we patch it you can only use the external monitor? These laptop video bioses have been hacked in such a way that upgrading them with a factory bios upgrade can only operate the external screen, not the screen of the laptop.

Re: Need of patched BIOS for Asus notebook A4L (SiS M661FX)

Posted: Fri Nov 14, 2014 5:51 pm
by kesk
Yes, I know that. And I played with some BIOS patching tools and I actually got it to replace the VBIOS ROM with this one: https://www.bios-mods.com/resources/ind ... m741%29%2F (version 0.70).

It worked.. but i still have no support for widescreen. I have the newest AGP driver (version 1.21) and the newest graphics driver on Windows XP. I tried it on two displays, 1600x900 and 1920x1080 but none works. Only 4:3 resolutions do work.

Is there another VBIOS ROM I could try?