On %M 0, Fu-Dong Chiou wrote > Thanks for the info. I did used xf86config, repeatedly, but didn't seem > to set up everything correctly. Here's what I think is crucial, but not > sure how to do it correctly: > > 1. hsync in kHz: I choose 31.5: standard VGA, 640x480 @ 60 Hz, as mine is > a 640x480 STN LCD capable of 256 colors (although the manual says it can > use external VGA monitor of three types (640x480, 31.5kHz; 900x600, > 35.5kHz for 256 colors; 1024x768, 35.5kHz for 256 colors). >
This may be your problem. Most monitors nowadays accept a range of hsync frequencies, e.g. 31-50. I've had similar problems with a 'bi-sync' monitor (NEC MultiSync 2A) which is specced as working on two discrete, fixed frequencies (31.5, 35.2). In order to get the modes I expect, I have to specify these in xf86config as narrow ranges, rather than as discrete values (e.g., 31.4-31.6, 35.1-35.3). I suspect that the arithmetic in calculating scan rates required for the various video modes produces scan rates that are close enough to the spec value, but which is discarded because it is not an exact match. Try specifying hsync as, e.g., '31.4-31.6'. John P. -- [EMAIL PROTECTED] [EMAIL PROTECTED] "Oh - I - you know - my job is to fear everything." - Bill Gates in Denmark
