Bill Gee composed on 2024-01-25 06:40 (UTC-0600):
> This is probably more of a hardware question than a FreeDOS question.
> However, I think the people on this list are likely to have some
> experience with this kind of problem.
> The upcoming change to Wayland in the Fedora world is going to force me
> to change out my PS/2 KVM switch for one that supports HDMI. There are
> KVM switches which can accept either HDMI/USB or VGA/PS2, but they are
> VERY expensive, like well over $1k. A KVM that is HDMI/USB only is
> under $200.
> The only machine I have that cannot be easily converted to HDMI/USB is
> my FreeDOS system. I found what I think might be a way to make it work,
> and I am interested in any experience you might have with this.
> Display: I currently have an old Permedia Labs VGA card (PCI bus) in
> the system. I tried a $10 VGA-to-HDMI adapter, but found it works ONLY
> for 1920x1080 resolution. It will not take 640x480.
> The mainboard supports AGP display adapters. I can get an AGP display
> adapter with a DVI-D output for reasonably cheap at eBay. DVI-D to HDMI
> is an easy conversion.
> Question - Will that work with the resolution modes that FreeDOS supports?
> Keyboard and mouse: I found a project which uses a Raspberry Pi Pico to
> convert USB keyboard and mouse to PS/2 keyboard and mouse.
> https://github.com/No0ne/ps2x2pico
> I already have a Pico and some suitable PS/2 cables. The logic level
> converter is $5 at Sparkfun. It is cheap, so I will give it a try.
> Question - Has anyone else tried something like this? Are there any
> other suggestions?
IME, the last of the ATI Radeon AGP cards well support the same modes as
pre-Radeon ATI cards:
Using no cabling adapters:
# inxi -CMS --vs
inxi 3.3.31-00 (2023-11-02)
System:
Host: k8mmv Kernel: 5.14.21-150500.55.44-default arch: x86_64 bits: 64
Desktop: Trinity v: R14.1.1 Distro: openSUSE Leap 15.5
Machine:
Type: Desktop Mobo: MICRO-STAR model: MS-7142 v: 1.00 serial: N/A
BIOS: Phoenix v: 6.00 PG date: 06/27/2006
CPU:
Info: single core model: AMD Sempron 3000+ bits: 64 type: UP cache:
L2: 128 KiB
Speed (MHz): 1800 min/max: N/A core: 1: 1800
# inxi -Gaz
Graphics:
Device-1: AMD R300 [Radeon 9700/9700 PRO] driver: radeon v: kernel
alternate: amdgpu arch: Rage-8 code: R300 process: TSMC 130nm built: 2002-07
ports: active: DVI-I-1,VGA-1 empty: SVIDEO-1 bus-ID: 01:00.0
chip-ID: 1002:4e44 class-ID: 0300
Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: radeon
unloaded: fbdev,modesetting,vesa dri: r300 gpu: radeon display-ID: :0
screens: 1
Screen-1: 0 s-res: 3600x1200 s-dpi: 108 s-size: 846x282mm (33.31x11.10")
s-diag: 892mm (35.11")
Monitor-1: DVI-I-1 mapped: DVI-0 pos: primary,left model: NEC EA243WM
serial: <filter> built: 2011 res: 1920x1200 hz: 60 dpi: 94 gamma: 1.2
size: 519x324mm (20.43x12.76") diag: 612mm (24.1") ratio: 16:10 modes:
max: 1920x1200 min: 640x480
Monitor-2: VGA-1 mapped: VGA-0 pos: right model: Dell P2213
serial: <filter> built: 2012 res: 1680x1050 hz: 60 dpi: 90 gamma: 1.2
size: 473x296mm (18.62x11.65") diag: 558mm (22") ratio: 16:10 modes:
max: 1680x1050 min: 720x400
API: EGL v: 1.5 hw: drv: amd r300 platforms: device: 0 egl: 1.4 drv: r300
device: 1 drv: swrast gbm: egl: 1.4 drv: r300 surfaceless: egl: 1.4
drv: r300 x11: egl: 1.4 drv: r300 inactive: wayland
API: OpenGL v: 4.5 compat-v: 2.1 vendor: x.org mesa v: 22.3.5 glx-v: 1.4
direct-render: yes renderer: ATI R300 device-ID: 1002:4e44 memory: 125 MiB
unified: no
# xrandr
Screen 0: minimum 320 x 200, current 3600 x 1200, maximum 4096 x 4096
VGA-0 connected 1680x1050+1920+0 (normal left inverted right x axis y axis)
473mm x 296mm
1680x1050 59.95*+
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08
DVI-0 connected primary 1920x1200+0+0 (normal left inverted right x axis y
axis) 519mm x 324mm
1920x1200 59.95*+
1680x1050 59.88
1400x1050 59.95
1280x1024 60.02
1440x900 59.90
1280x960 60.00
1280x800 59.91
1280x720 60.00 59.94
1024x768 60.00
800x600 60.32 56.25
720x480 60.00 59.94
640x480 60.00 59.94
S-video disconnected (normal left inverted right x axis y axis)
#
Using a DVI output adapter on a HDMI cable:
# inxi -Gaz
Graphics:
Device-1: AMD R300 [Radeon 9700/9700 PRO] driver: radeon v: kernel
alternate: amdgpu arch: Rage-8 code: R300 process: TSMC 130nm built: 2002-07
ports: active: DVI-I-1 empty: SVIDEO-1,VGA-1 bus-ID: 01:00.0
chip-ID: 1002:4e44 class-ID: 0300
Display: x11 server: X.Org v: 1.21.1.4 driver: X: loaded: radeon
unloaded: fbdev,modesetting,vesa dri: r300 gpu: radeon display-ID: :0
screens: 1
Screen-1: 0 s-res: 1680x1050 s-dpi: 108 s-size: 395x246mm (15.55x9.69")
s-diag: 465mm (18.32")
Monitor-1: DVI-I-1 mapped: DVI-0 model: Dell P2213 serial: <filter>
built: 2012 res: 1680x1050 hz: 60 dpi: 90 gamma: 1.2
size: 473x296mm (18.62x11.65") diag: 558mm (22") ratio: 16:10 modes:
max: 1680x1050 min: 720x400
API: EGL v: 1.5 hw: drv: amd r300 platforms: device: 0 egl: 1.4 drv: r300
device: 1 drv: swrast gbm: egl: 1.4 drv: r300 surfaceless: egl: 1.4
drv: r300 x11: egl: 1.4 drv: r300 inactive: wayland
API: OpenGL v: 4.5 compat-v: 2.1 vendor: x.org mesa v: 22.3.5 glx-v: 1.4
direct-render: yes renderer: ATI R300 device-ID: 1002:4e44 memory: 125 MiB
unified: no
# xrandr
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 4096 x 4096
VGA-0 disconnected (normal left inverted right x axis y axis)
DVI-0 connected primary 1680x1050+0+0 (normal left inverted right x axis y
axis) 473mm x 296mm
1680x1050 59.95*+
1280x1024 75.02 60.02
1152x864 75.00
1024x768 75.03 60.00
800x600 75.00 60.32
640x480 75.00 59.94
720x400 70.08
S-video disconnected (normal left inverted right x axis y axis)
#
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
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