vizskywalker 0 Report post Posted January 13, 2005 I started working in assembler about a year ago. Several months ago I attempted to use SVGA graphics mode. However, when I use the VESA standards I run into a problem where the refresh rate that the program sets with a mode is outside the operating parameters of the monitor. Does anyone know of any sites that explain how to solve this problem, or can anyone explain it themself? Thanks. Share this post Link to post Share on other sites
osknockout 0 Report post Posted January 21, 2005 I haven't programmed for VESA in years,but I think you can still manually change therefresh rate. Could you tell what environmentyou're using? Share this post Link to post Share on other sites
vizskywalker 0 Report post Posted January 23, 2005 Yeah, thanks, it's windows (xp and 98), pentium 1 through 4, and VESA 1.0 to 3.0. I'm trying to use gtf timings to generate the pixel clock I need, but they don't make the fomula public, and I know it's been done, so i was wondering if anyone here might know them or an alternate method. Thank you so much. Share this post Link to post Share on other sites
osknockout 0 Report post Posted February 2, 2005 Sorry for the long time...I was busy with some other stuff.Ah pixel clock...there are a bunch of more methods, seehttp://forums.xisto.com/no_longer_exists/Yes, you are right, they didn't release it out.But, there is a way, Xfree86:http://www-uxsup.csx.cam.ac.uk/manuals/redhat/index.htmlgoto section 6.3 - yes hack xfree86 source Share this post Link to post Share on other sites
vizskywalker 0 Report post Posted February 2, 2005 That's okay, but it appears as if the pixel clock method not specific to Xfree86 doesn't have a way to take a refresh rate and get a pixel clock yet, and the Xfree86 page is specific to Xfree86, and I'm working on Windows XP. If you know of any other sites that can help generate the pixel clock or have methods for a CRT Controller I would appreciate it. Thanks for your help. Share this post Link to post Share on other sites
osknockout 0 Report post Posted February 5, 2005 Sorry, I don't know that much asm :Dbest of luck though, and if you thinkof starting to hack XFree86 code, contactthe Delphi&Asm forum when you haveproblems. Share this post Link to post Share on other sites
vizskywalker 0 Report post Posted February 6, 2005 Thanks anyway. Share this post Link to post Share on other sites
