RE: WD90C24 Anyone?
[mailto:[EMAIL PROTECTED] On Behalf Of Tim Roberts [EMAIL PROTECTED] wrote: I have an old ThinkPad 750P. It uses the WD90C24 chip, which was in the old svga driver. What would it take to port that to the new XFree86 code? I'm not above writing assembly code or digging in here, I just don't know where to start or how much effort it might take... swatting a fly or eating an elephant? Holy moly! You have a whopping 1 megabyte of video RAM there. Will it work with the VESA fb driver? If not, then you might as well give up. I have the source code for their old Windows 3.1 driver, and it is more than 76,000 lines of 16-bit x86 assembler. The blitter provided virtually no acceleration, so you won't really be giving anything up to use the fb driver. This machine didn't quite get the VESA in firmware. It was provided by a DOS TSR, which was required for the Win3.1 and Win95 drivers. I thought it was for use with VESA, but now I'm not sure. Anyway, I don't think it's a good idea to require a DOS TSR for video in Linux. There is source for this chip somewhere in the annals of X code. I think XFree86 supported it as late as 3.1. The only mode I've seen with modern distributions is 320x200x1. It's not pleasant. I'd also like to get the pen interface to work on it, but one step at a time! :) So what's that next step? Chris ___ Devel mailing list Devel@XFree86.Org http://XFree86.Org/mailman/listinfo/devel
Re: Framebuffer mapped adress
Hi, I can't address your question, but you might want to set your system clock. It looks to be about 6 weeks behind. People might lose your question. ayachi gherissi wrote: Hi Is there a way to get FbBase and FbStart from an X extension. Thank's __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Devel mailing list Devel@XFree86.Org http://XFree86.Org/mailman/listinfo/devel ___ Devel mailing list Devel@XFree86.Org http://XFree86.Org/mailman/listinfo/devel
Re: WD90C24 Port
Michael wrote: I've got an old laptop with a WD90C24 video chip. By default, X comes up in 320x200x1, which is not too useful. While I am a competent programmer, I have not done device drivers for Linux. As far as I remember that's a dumb framebuffer also known as ( or closely related to ) PVGA1A and maxed out at 640x400x8 ( with a 256kB board, I had one like that ages ago ) - no acceleration, 8 or 16bit ISA interface, slowish. Should be fully VGA compatible though, so 640x480 in 16 colours should be possible with the generic driver. This one (ThinkPad 750P) has 1MB video RAM, and maxed out at 640x480 with 256 colors with the old Windows drivers. calculating But it should be able to do 24-bit color with that amount of RAM. Dang. In any case, it currently has a grayscale screen, so 16 colors would do me just fine for the moment. I do have a TFT on a shelf, but I'd have to surrender the spiffy pen/tablet thing going on. More colors would be nice, but maybe later. Now that I've gone off topic, a pointer to get Slackware 10.1/X.org v.whatever to use the plain ol' VGA generic driver would be most appreciated. Many thanks, Chris ___ Devel mailing list Devel@XFree86.Org http://XFree86.Org/mailman/listinfo/devel
WD90C24 Port
Hello all, I've got an old laptop with a WD90C24 video chip. By default, X comes up in 320x200x1, which is not too useful. While I am a competent programmer, I have not done device drivers for Linux. How much effort would it take to port (part of) the svga driver to the latest XFree86 project? Chris ___ Devel mailing list Devel@XFree86.Org http://XFree86.Org/mailman/listinfo/devel
