Info will be added here from the amiga side:

If you’ve ever turned on your Amiga setup and found it’s defaulting to HDMI output when you really want to use the classic RGB display, you’re not alone. In today’s quick tutorial, we walk you through how to force your Amiga to boot into RGB video mode — step by step.

🎬 Watch the Tutorial
📹 Watch on YouTube

🛠️ Step-by-Step Instructions
Check the Boot State
If your machine is booted up and playing audio but your screen remains blank on RGB, it’s likely defaulting to HDMI.

Reset the Amiga

Press and hold Ctrl + Amiga + Amiga to reset.

Hold both mouse buttons down as it reboots.

Access the Boot Menu

When the boot menu appears, don’t let go just yet.:

As soon as you click on “Boot,” hold both buttons down again.

Force RGB Mode

This double-button trick forces the system to boot using the RGB display.

You should now see the welcome screen saying: “This is Amiga speaking — Welcome to Captain.”

🧩 Customize Your Setup
Once booted into RGB mode:

Adjust your keyboard and mouse settings

Explore screen mode options

Switch between Low Res and High Res

Personalize your theme

📝 Final Tips
Sometimes older buttons can be finicky. Be sure both mouse buttons are firmly pressed during the process. If you ever get stuck in HDMI again, just repeat this trick!

E-UAE can be configured either:

by command-line options (-s key=value)

or by plain-text config files (usually called .uaerc or default.uaerc depending on platform)

🔧 Basic Config File Format
Plain text file: key=value (one option per line)

Lines starting with # are comments.

Blank lines are ignored.

Default config file locations:

Linux: .uaerc in current directory or home folder.

macOS: default.uaerc (since Finder hides dot files).

🖥 Main Configuration Categories
1️⃣ CPU Options
Key Meaning
cpu_type= CPU model (68000, 68010, 68ec020, 68020, 68040, 68060)
cpu_speed= real, max, or fine-tune (1–20)
finegrain_cpu_speed= Precise speed adjustment
cpu_compatible= Enable more accurate 68000 compatibility
cpu_cycle_exact= Full cycle-accurate timing

2️⃣ JIT (Just-In-Time Compiler) Options (x86 only)
Key Meaning
cachesize= JIT cache size (0 disables JIT)
compfpu= Translate FPU instructions natively

3️⃣ Chipset Options
Key Meaning
chipset= ocs, ecs_agnus, ecs, aga
ntsc= true (NTSC) or false (PAL)
immediate_blits= Faster blits (less accurate)
collision_level= Collision emulation level (none, sprites, playfields, full)

4️⃣ ROM Options
Key Meaning
kickstart_rom_file= Path to Kickstart ROM image
kickstart_key_file= Cloanto ROM decryption keyfile
kickstart_ext_rom_file= Extended ROM (for CD32/CDTV)

5️⃣ RAM Options
Key Meaning
chipmem_size= Chip RAM in 512KB blocks (1–16 → up to 8MB)
bogomem_size= Slow RAM in 256KB blocks (up to ~1.8MB)
fastmem_size= Zorro II Fast RAM (up to 8MB)
z3mem_size= Zorro III Fast RAM (up to 512MB)
gfxcard_size= RTG VRAM (up to 32MB, Picasso96)

6️⃣ Floppy Options
Key Meaning
floppy= Assign disk images to DF0–DF3
floppy_speed= Floppy drive emulation speed (100–800%)

7️⃣ Hard Disk / Filesystem Options
Key Meaning
filesystem2= Mount host directories as Amiga volumes
hardfile2= Mount hard disk image files

8️⃣ Display Options
Key Meaning
gfx_framerate= Frameskip (1=full, higher=faster/less accurate)
gfx_width_windowed= Window width
gfx_height_windowed= Window height
gfx_fullscreen_amiga= Fullscreen mode
gfx_lores= Lo-res output (faster, more compatible)
gfx_linemode= none, double, or scanlines
gfx_correct_aspect= Correct aspect ratio
gfx_center_horizontal= Centering options
gfx_center_vertical= Centering options
show_leds= Show LED indicators on screen

9️⃣ Sound Options
Key Meaning
sound_output= none, normal, exact
sound_bits= 8 or 16-bit sound
sound_frequency= Audio sample rate (44100Hz typical)
sound_channels= mono, stereo, or mixed
sound_latency= Audio buffer latency in ms
sound_interpol= Sound smoothing (none, rh, crux, sinc)

🔟 Input Device Options
Key Meaning
joyport0= / joyport1= Joystick and mouse emulation modes
scsi= Enable SCSI device access
bsdsocket_emu= Enable bsdsocket networking

✅ Advanced Platform-Specific Options
X11, SDL, AmigaOS, and ALSA sections include special extensions depending on what host you are running on.

🔥 In Practice:
For casual use: Use GUI config or edit .uaerc file.

For advanced setups: Use command-line with -s key=value overrides.

JIT provides best speed (x86 only).

Real 68000 compatibility needs cpu_compatible=true.

For WHDLoad compatibility: usually Chip RAM 2MB + some Fast RAM.

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