Doc. # 1-0002196
Date Updated 06-01-2004 Date Created 07-27-2000
Document Type Knowledge Base Related OS
Related Product PPC-120/ PPC-140/ PPC-150
Need to display 640 x 480 picture to full screen in PPC-120 and 140
Solution:
###### Customer's Mail ######## This question as been asked before, but I want to verify if there has now been enough world-wide demand for changes. I see that there is a 640 x 380 resolution BIOS (AUK.BIN) v 2.11, dated 6-9-98 for the PPC-120T (PCM-5868) that only stretches the display and is not a true "VGA". Even though the PPC-120/140/150 are listed as SVGA or XVGA and are able to do XVGA, customers still want to do a full screen 640 x 480 because of their old application being written for VGA and they don't to re-write their software. Does ACL now have a BIOS for just plain full screen VGA (not 640 x 380) or is the closest BIOS and Pentium PPC that will do full screen VGA is the PPC-102S for a special order? I don't see in Notes that this issue is being addressed again. Our customers are very reluctant to rewrite their application software for SVGA or XVGA or to settle for a virtual screen or the screen in the middle being surrounded by a 2" boarder, etc. ##### Solution ########### The attached BIOS is for PPC-140 and 120. The BIOS for PPC-140 is the same as PPC-150. The registers has been changed as below: FR 40: Horizontal compensation register value to 21h FR 48: Vertical compensation register value to 17h That will expend the 640 x 480 to 1024 x 768 (PPC-120). Note that the attached BIOS is for old version of PPC. If you have new version of PPC (rev. B) , Please extract the VGA BIOS. Then, combine them.