Lago
95 lines
2.4 KiB
Markdown
95 lines
2.4 KiB
Markdown
# Internal KVM Switch
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FastAPI dashboard and polling service for Alienware-only KVM switching.
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## Trigger Logic
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The app targets Alienware AW3423DWF for switching and uses Samsung as trigger-only.
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Monitor filtering:
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- Alienware target monitor: description contains `AW3423DWF`
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- Samsung trigger monitor: Samsung-only descriptions (`SAM...` / `SAMSUNG`)
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- Other non-Alienware DDC monitors are ignored for trigger selection
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Configure only one value per machine:
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- this device Alienware target port: `DP1`, `DP2`, or `HDMI`
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- optional auxiliary trigger monitor: selected in UI; if not set, auto-detection is used
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Samsung trigger input codes (for diagnostics only):
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- `DP1` -> `15`
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- `DP2` -> `19` (or `16` on some setups)
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- `HDMI` -> `17`
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- If the auxiliary external monitor is present, the app checks Alienware current input and enforces the configured `device_port` via `monitorcontrol`.
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Retry behavior:
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- Only attempts switching while the Samsung screen is connected
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- After each switch attempt, waits `5` seconds and rechecks
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- Tries at most `3` times per Samsung-connected session
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- After success, it will not try again until the Samsung screen disconnects and reconnects
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## Run
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```powershell
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uv run kvm-switch
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```
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The dashboard is served at `http://localhost:4000`.
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## Test
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```powershell
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uv run pytest -q
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```
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## Diagnostic Script
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Use this to inspect connected DDC/CI monitors and current input values:
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```powershell
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uv run monitorcontrol_main.py
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```
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## Autostart
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### Recommended: one-command installer
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From the project folder, run:
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```powershell
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powershell -ExecutionPolicy Bypass -File .\install_autostart.ps1
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```
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This creates or updates a Startup shortcut for the current Windows user and points it to this folder's `start_kvm_switch_background.vbs`.
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No hardcoded `C:\Users\...` path is required, so it works across tower/laptop deployments.
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### Manual option: Startup folder
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1. Press `Win + R`
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2. Run `shell:startup`
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3. Create a shortcut to this repo's `start_kvm_switch_background.vbs`
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The launcher resolves its own folder dynamically, so the project can live in different user directories.
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### Cleaner option: Task Scheduler
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Use Task Scheduler if you want it to start automatically at logon with better control.
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Program/script:
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```text
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wscript.exe
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```
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Arguments:
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```text
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"<full-path-to-project>\\start_kvm_switch_background.vbs"
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```
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Set the trigger to `At log on`. Optional: enable `Hidden` in task settings.
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