Cannot set resolution to 512x384x8B on ThinkPad 600 in DOS

[¿°¿]

If I try to set the video resolution to 512x384x8B in DOS, the emulator crashes, freezes the computer (and the drive busy light stays on) and gives an error. This happens on any game, or even when no game is loaded. The error is, with no game loaded:

Page fault at eip=001be16c, error=006
eax=01010100 ebx=00000001 ecx=00000000 edx=00001cde esi=005de178 edi=00000200
ebp=004e3350 esp=00575c58 program=C:\WINDOWS.98\DESKTOP\ZSNES.EXE
cs: sel=00a7 base=10000000 limit=00f8ffff
ds: sel=00af base=10000000 limit=00f8ffff
es: sel=010f base=e0000000 limit=001cffff
fs: sel=00ff base=00041230 limit=000001ff
gs: sel=0107 base=00041230 limit=0000ffff
ss: sel=00af base=10000000 limit=00f8ffff
App stack: [00575cac..004f5cac Exceptn stack: [004f5c00..004f3cc0

Call frame traceback EIPs:
0x001be16c
General Protection Fault in RMCB at eip=10cf; flags=3002
eax=015f0001 ebx=000010b6 ecx=00000000 edx=004f5cff esi=000014e4 edi=000020bc
ebp=00000000 esp=000020a8 cs=2b ds=3b es=33 fs=33 gs=0 ss=33 error=00a4


I don't think there's any typos, I checked it twice, but if something doesn't make sense, ask me and I'll find out.

[¿°¿]

I forgot to mention, it's version 1.42. Sorry 'bout that.

[Deathlike2]

If you don't have a VESA2 compliant video card, it's probably not going to work...

[¿°¿]

It works with all the other VESA2 modes. 512x384x8B is the ONLY one it doesn't work with.

[Deathlike2]

I'm not too familar with the resolutions VESA2 supports...

It could just be that this resolution just doesn't work on your system.

[¿°¿]

Another thing I should have said at the start: It works fine on this resolution, using the DOS version under Windows 98.

[Deathlike2]

I personally think this issue is just specific to you.. unless some other DOS user can verify your claim.

[The Dumper]

Probably your Video BIOS doesn't support this VBE mode. In DOS you either need the Video BIOS to support it or a 3rd party VBE tsr such as Scitech Display Doctor (now free for download from their ftp site although it hasn't been updated in a few years for new hardware) or univbe. In Windows DOS the card's Windows display driver will be handling the VBE mode (no VBE BIOS support required unless you shutdown to MSDOS mode in which case it probably doesn't work there either).

[¿°¿]

I think I'll try the Video Doctor, and maybe contact IBM about it.

[Deathlike2]

Scitech Display Doctor generally helps older video cards... so you may be fortunate...

However, IBM will most likely do nothing to update older technology (there could be a video BIOS update or a VESA BIOS TSR to use, but whatever I guess).

[¿°¿]

It will probably help, then. My laptop will be 8 years old in may. Still has all the stickers, too!