len@schur.math.nwu.edu (Len Evens) (08/29/90)
I have a Sun 3/110 on which I am running X-windows. This machine has a color graphics card, and a grey scale monitor. The color graphics frame buffer hardware has developed a problem which yields a pattern of vertical lines running through most of my screen. The vmunix kernel contains drivers both for color graphics (listed in the boot messages as) cgfour0 at obmem 0xff000000 pri 4 and b&w (listed as) bwtwo0 at obmem 0xff000000 The normal console uses the pure b&w mode, and there is no problem with it. Also, running sunview with the option -overlay_only eliminates the problem. I would like to be able to do the same with X-windows. I have experimented with choosing colors, but I can not eliminate the problem that way. Can anyone suggest a way to avoid the color graphics frame buffer? Leonard Evens len@math.nwu.edu 708-491-5537 Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208 Any help would be appreciated. if I make everything just black or white. Leonard Evens len@math.nwu.edu 708-491-5537 Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
mouse@LARRY.MCRCIM.MCGILL.EDU (08/30/90)
> I have a Sun 3/110 on which I am running X-windows. (I assume you mean the X Window System[%].) > This machine has [cg4 hardware], and a grey scale monitor. > The color graphics frame buffer hardware has developed a problem > which yields a pattern of vertical lines running through most of my > screen. > The normal console uses the pure b&w mode, and there is no problem > with it. > Also, running sunview with the option -overlay_only eliminates the > problem. I would like to be able to do the same with X-windows. I > have experimented with choosing colors, but I can not eliminate the > problem that way. Can anyone suggest a way to avoid the color > graphics frame buffer? You don't say what release of X you are running. The MIT R4 Sun server has an option -mono which either makes the monochrome screen the default or eliminates the color screen entirely, I forget which. You could also use -dev /dev/bwtwo0 (or bwtwo1, I forget which is overlay and which is overlay enable). I would also say it's time to call the field circus...er, service types. [%] Not to be snarky; it's just that I keep seeing this error and it eventually grated enough to provoke a response. As the R4 mit/README-R4 file says, It's a window system named X, not a system named X Window. der Mouse old: mcgill-vision!mouse new: mouse@larry.mcrcim.mcgill.edu