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bc-250-archlinux

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Setup Asrock BC-250 to use as game/desktop pc

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# bc-250-archlinux

Arch Linux setup script for the ASRock BC-250 mini PC to optimize it for gaming and desktop use.

## Overview

This repository contains an automated setup script that configures Arch Linux for optimal performance on the ASRock BC-250, which features AMD Van Gogh APU hardware. The script handles GPU configuration, thermal monitoring, and CPU governor setup.

## Requirements

- **Operating System**: Arch Linux
- **Kernel Version**: 6.x or higher
- **Mesa Version**: 25.1.x or higher
- **Privileges**: sudo access

## Features

The setup script automatically:

1. **GPU Configuration**: Disables compute shaders via `RADV_DEBUG=nocompute` to work around Van Gogh APU limitations
2. **AMDGPU Options**: Configures `sg_display=0` option for better display compatibility
3. **Thermal Monitoring**: Enables the NCT6683 sensor module for hardware monitoring
4. **CPU Governor**: Installs and enables `cyan-skillfish-governor-smu` for optimized CPU frequency scaling
5. **Memory Management**: Removes zram and configures zswap with 8GB compressed memory limit using LZ4 compression
6. **Initramfs Update**: Rebuilds initramfs to apply early-boot configurations

## Installation

1. Clone this repository:
   ```bash
   git clone https://github.com/dannybastos/bc-250-archlinux.git
   cd bc-250-archlinux
   ```

2. Run the setup script:
   ```bash
   chmod +x bc-250-archlinux-setup.sh
   ./bc-250-archlinux-setup.sh
   ```

3. Restart your system after the script completes:
   ```bash
   sudo reboot
   ```

## What Gets Configured

### Environment Variables
- `/etc/environment.d/99-radv-bc250.conf`: Sets `RADV_DEBUG=nocompute`

### Kernel Module Options
- `/etc/modprobe.d/amdgpu-bc250.conf`: AMDGPU display configuration
- `/etc/modprobe.d/nct6683-bc250.conf`: NCT6683 sensor force-load option
- `/etc/modules-load.d/nct6683-bc250.conf`: Auto-load NCT6683 at boot

### Kernel Parameters (Bootloader)
- **zswap configuration**: Adds `zswap.enabled=1 zswap.compressor=lz4 zswap.max_pool_percent=50 zswap.zpool=z3fold`
- Supports both GRUB (`/etc/default/grub`) and systemd-boot (`/boot/loader/entries/*.conf`)
- Original configurations backed up automatically

### Services
- `cyan-skillfish-governor-smu.service`: CPU frequency governor service

### Memory Management
- **zram**: Removed if present (zram-generator uninstalled)
- **zswap**: Configured with ~8GB compressed memory pool (50% of RAM with LZ4 compression)

## Troubleshooting

If the script fails:
- Ensure you're running Arch Linux with kernel 6.x+
- Verify Mesa drivers are version 25.1.x or higher
- Check that you have sudo privileges
- Review error messages for specific component failures

### Verifying zswap After Reboot

Check if zswap is active:
```bash
cat /sys/module/zswap/parameters/enabled
# Should output: Y

grep -r . /sys/module/zswap/parameters/
# Shows all zswap configuration
```

Check zswap statistics:
```bash
grep -r . /sys/kernel/debug/zswap/
# Shows pool size, compression ratio, etc.
```

## License

MIT

## Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

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