VBE executables causing crash with VBE 3.0 card

[sofakng]

I'm using an ICOP Vortex86DX SOM304RD-VI SOM module that has a built-in XGI Volari Z9s Chipset running MS-DOS 6.22.

According to SciTech Display Doctor (6.53 for DOS), this chip supports VBE 3.0:

However, when I launch FDOOMVBR.EXE or FDOOMVBD.EXE it crashes with a corrupt screen or a stack trace (?):

I can't use UNIVBE because this chip isn't supported but according to VBETEST the card already supports VBE 3.0? (other games such as Duke3D and Quake seem to be working in VBE modes)

[viti95]

Can you check if the 320x200 resolution it's supported in the 8-bit per pixle mode? Also can you try the utility NOLFB to check if the LFB it's the problem?

[sofakng]

SDD's VBETEST allows me to test [320x200x8, 128 page, Banked Only]. When it asks for refresh rate I've selected [BIOS Default] (60Hz I think?) and all tests are successful.

If I use the NOLFB utility, FDOOMVBD.EXE stops crashing but has flickering. However, FDOOMVBR.EXE appears to run perfectly!

Will I need to run this utility every time or can you implement a fix (or command-line option?)

Thanks so much for the help!

[viti95]

I'll add a fix, it seems to have problems with the LFB so the idea is to disable it (as NOLFB does). FDOOMVBD.EXE doesn't work without LFB, but at least FDOOMVBR.EXE will be totally usable.

[sofakng]

Sounds good. Thanks so much!

[viti95]

I've released a new version with this issue fixed (better late than never 😅). Thanks for your patience.