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Subject: | Re: NTVDM Error and TVision. |
Date: | Thu, 3 Jan 2002 22:53:30 +1100 |
MIME-Version: | 1.0 |
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Reply-To: | djgpp-workers AT delorie DOT com |
I traced it further and found that the NTVDM error occurs in the int 0x10 call fail when run under Win XP in a window. The offending function is rh_restore_vga_state() in the vga.cc file. This function is called from....from..... via... and finally the TSsreen destructor. void rh_restore_vga_state() { if (useBIOS_VGA_State) {// SET: It fails for some Matrox boards. __dpmi_regs r; if (vga_state_segment == -1) return; r.x.ax = 0x1c02; r.x.es = vga_state_segment; r.x.bx = 0; r.x.cx = 0x0007; __dpmi_int(0x10,&r); } else { VGAStateLoad(vgaState); } } If I force the code to use the VGAStateLoad() function then it works fine (TV example and seteditor). Could I get some feedback from people on with regards to the following as the problem could be that my video card (Nvida MX (original, not 200 or 400)) could have a stuffed bios that causes a problem with the NTVDM:- 1) Could someone download the seteditor and run it with and without the -S option in a window mode and see if it works. The -S option forces useBIOS_VGA_State = 0, no -S option sets it to 1. 2) Could someone download the seteditor and run it under 2K or XP with a non Nvidia video card or non MX video card. This may confirm if it is video bios related or just 2K and XP releated. I tried the code on Win 98 with a TNT 2 and it worked fine. I can run seteditor without it causing any NTVDM errors if I run it with the -S option. A possible solutions could be to always set useBIOS_VGA_State to 0 under NT. By the way even with useBIOS_VGA_State = 0 I still get a NTVDM error in Rhide, one issue found now to move onto the next one. More debugging to be done.
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