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joncampbell123 / dosbox-x

DOSBox-X fork of the DOSBox project
GNU General Public License v2.0
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Windows 95 and screen resolution 1920x1080 #4976

Closed pgcsw closed 2 months ago

pgcsw commented 2 months ago

Question

Hello

i've installed Windows 95 (OSR1) in dosbox-x according to this guide: https://github.com/joncampbell123/dosbox-x/wiki/Guide:Installing-Windows-95/c6894fd3c687213e3466603941f4b0490c42b898

I've installed the VBEMP driver (from the 032MB directory) because i'll use Windows 95 with a screen resolution of 1920x1080 with 256colors. But it is only a maximum screen resolution of 1280x1024 available in Windows 95. If I understand this guide correctly - chapter (Emulated video adapter and video mode), this should be possible to use a screen resolution of 1920x1080 in Windows 95 with the VBEMP driver. What am I doing wrong that i can't select a screen resolution of 1920x1080?

My win95.conf file is:

[sdl]
autolock=true
fullscreen=false
fullresolution=1920x1080

[dosbox]
title=Windows 95
memsize=32

[video]
allow high definition vesa modes=true
allow unusual vesa modes=true
allow low resolution vesa modes=false

[dos]
ver=7.0
hard drive data rate limit=0
floppy drive data rate limit=0

[cpu]
cputype=pentium_mmx
core=normal

[sblaster]
sbtype=sb16vibra

[fdc, primary]
int13fakev86io=true

[ide, primary]
int13fakeio=true
int13fakev86io=true

[ide, secondary]
int13fakeio=true
int13fakev86io=true
cd-rom insertion delay=4000

[render]
scaler=none

[autoexec]
IMGMOUNT 0 empty -fs none -t floppy
IMGMOUNT 1 empty -fs none -t floppy -size 512,15,2,80
IMGMOUNT C win95-hdd.img -ide 1m
IMGMOUNT D empty -t iso -ide 2m
BOOT C:

Thank you in advance.

Best regards

I have tryed to use the VESAMOED command bevore i run Windows 95 to set the screen resolution of 1920x1080 according to this issue: https://github.com/joncampbell123/dosbox-x/issues/1187 But it does not work for me.

Screenshot: guest os_001

joncampbell123 commented 2 months ago

Please try adding the vmemsize option. Try vmemsize=8.

[video]
vmemsize=8
pgcsw commented 2 months ago

Thank you for your response. I now see the mistake that i made. I've the lines "vesa modelist width limit=0" "vesa modelist height limit=0" overwritten and vmemsize=8 not listed. Now it works and i can use the screen resolution of 1920x1080 with 256 colors in Windows 95.

Here is my working win95.conf file if this is of interest to other people.

[sdl]
autolock=true
fullscreen=true

[dosbox]
title=Windows 95
memsize=32

[video]
vmemsize=8
vesa modelist width limit=0
vesa modelist height limit=0
allow high definition vesa modes=true
allow unusual vesa modes=true
allow low resolution vesa modes=false

[dos]
ver=7.0
hard drive data rate limit=0
floppy drive data rate limit=0

[cpu]
cputype=pentium_mmx
core=normal

[sblaster]
sbtype=sb16vibra

[fdc, primary]
int13fakev86io=true

[ide, primary]
int13fakeio=true
int13fakev86io=true

[ide, secondary]
int13fakeio=true
int13fakev86io=true
cd-rom insertion delay=4000

[render]
scaler=none

[autoexec]
IMGMOUNT 0 empty -fs none -t floppy
IMGMOUNT 1 empty -fs none -t floppy -size 512,15,2,80
IMGMOUNT C win95-hdd.img -ide 1m
IMGMOUNT D empty -t iso -ide 2m
BOOT C:

Thank you.

Best regards.

guest os_005