Checklist
What happened?
After the changes introduced in build #8432, some systems with integrated Cirrus Logic CL‑GD5428 ISA/VLB graphics now experience display freezes or glitches when booting Windows 3.1. DOS remains unaffected.
The system boots normally when the discrete equivalent is used.
I also want to report that the Vectra 486VL’s integrated GPU appears to be a CL‑GD5426 rather than a CL‑GD5428.
Configuration file
[Cirrus Logic GD5428 (ISA) (On-Board)]
memory = 512
[Sound Blaster 16 #1]
base = 0220
base401 = 0330
irq = 5
dma = 1
dma16 = 5
gameport = 1
opl = 1
control_pc_speaker = 1
receive_input = 1
receive_input401 = 1
[Sound Blaster v1.0 #1]
base = 0220
irq = 7
gameport = 1
opl = 1
receive_input = 1
[Sound Blaster v2.0 #1]
base = 0220
mixaddr = 0250
irq = 5
gameport = 1
opl = 1
cms = 1
receive_input = 1
[General]
emu_build_num = 8436
force_43 = 1
host_cpu = 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
sound_gain = 18
uuid = 78369d35-e272-5274-8531-8fb134044647
vid_renderer = qt_opengl3
[Machine]
cpu_family = i486sx
cpu_multi = 1
cpu_speed = 25000000
cpu_use_dynarec = 0
machine = vect486vl
mem_size = 4096
[Video]
gfxcard = internal
[Input devices]
keyboard_type = keyboard_ps2
mouse_type = ps2
[Network]
net_01_link = 0
net_02_link = 0
net_03_link = 0
net_04_link = 0
[Hard disks]
hdd_01_fn = Maxtor 7120AT.vhd
hdd_01_ide_channel = 0:0
hdd_01_parameters = 17, 14, 1024, 0, ide
hdd_01_speed = 7131AT
[Floppy and CD-ROM drives]
fdd_01_audio = epson_sd800_80t
fdd_01_fn = D:/IBM PC/Drivers/Cirrus Logic GD5428 Drivers (1993)(Cirrus Logic)/Win31/Version 1.43 (1994)/GD5428 v1.43.IMA
fdd_01_image_history_01 = D:/IBM PC/Drivers/Cirrus Logic GD5428 Drivers (1993)(Cirrus Logic)/Win31/Version 1.30 (1993)/GD5428 v1.30.IMA
fdd_01_image_history_02 = D:/IBM PC/Drivers/Cirrus Logic GD5428 Drivers (1993)(Cirrus Logic)/DOS/avga3_5422_5424_or_6_or_8.img
fdd_01_image_history_03 = D:/IBM PC/Drivers/Cirrus Logic GD5428 Drivers (1993)(Cirrus Logic)/Win31/Version 1.41 (1994)/GD5428 v1.41.img
fdd_01_image_history_04 = D:/IBM PC/Drivers/Cirrus Logic GD5428 Drivers (1993)(Cirrus Logic)/Win31/Version 1.41 (1994)/GD5428 v1.41.IMA
fdd_01_image_history_05 = D:/IBM PC/Drivers/Creative Sound Blaster 2.0 Deluxe Rev 3/T2S_DISK1.img
fdd_01_image_history_06 = D:/IBM PC/Drivers/Creative Sound Blaster 2.0 Deluxe Rev 3/T2S_DISK2.img
fdd_01_image_history_07 = D:/IBM PC/Drivers/Creative Sound Blaster 2.0 Deluxe Rev 3/SB20_DISK3.img
fdd_01_image_history_08 = D:/IBM PC/Drivers/Creative Sound Blaster 2.0 Deluxe Rev 3/SB20_DISK2.img
fdd_01_image_history_09 = D:/IBM PC/Drivers/Creative Sound Blaster 2.0 Deluxe Rev 3/SB20_DISK1.img
fdd_01_image_history_10 = D:/IBM PC/Drivers/Logitech MouseWare 6.30 (3.5)(1993)(Logitech)/disk1.img
fdd_01_type = 35_2hd
fdd_02_type = none
[GL3 Shaders - crt-geom-mini.glslp]
g_in = 2
CURV = 0
scanlines = 0.25
MASK = 0.2
INTERL = 0
SAT = 1
[GL3 Shaders]
shader0 = D:/WinBox for 86Box/glsl-shaders-master/crt/crt-geom-mini.glslp
shaders = 1
[Sound]
sndcard = sb2.0
[Cirrus Logic GD5428 (ISA)]
memory = 512
[Cirrus Logic GD5426 (ISA)]
memory = 512
Operating system
Windows 11 26H1
86Box version
8436
Build architecture
Windows - x64 (64-bit)
Build type
Additional context
HP Vectra 486_25VL.zip
Checklist
What happened?
After the changes introduced in build #8432, some systems with integrated Cirrus Logic CL‑GD5428 ISA/VLB graphics now experience display freezes or glitches when booting Windows 3.1. DOS remains unaffected.
The system boots normally when the discrete equivalent is used.
I also want to report that the Vectra 486VL’s integrated GPU appears to be a CL‑GD5426 rather than a CL‑GD5428.
Configuration file
Operating system
Windows 11 26H1
86Box version
8436
Build architecture
Windows - x64 (64-bit)
Build type
Additional context
HP Vectra 486_25VL.zip