Quick answer
🖥️ Where to connect Luna Display on custom PCs? Luna Display must:
Plug directly into the GPU
OR
If plugged into the Motherboard, the port must support displays and be connected to the GPU via DisplayPort-In cable. Your components will typically come with a cable for this if it is possible.
💡 Key connection rules:
Connect to GPU: Plug into dedicated graphics card, if possible. Motherboard only if the USB-C ports supports it, AND has a way to connect directly to the GPU via DisplayPort-In.
No PCI-e cards: Thunderbolt/USB-C expansion cards won't work
No daisy chaining: Cannot connect through other monitors
No adapters: Direct connection required
📊 Understanding Graphics Processing
📊 Understanding Graphics Processing
🎮 Dedicated vs Integrated Graphics
Understanding your graphics setup helps ensure proper Luna Display connection:
Dedicated Graphics (GPU):
Separate graphics card installed in your PC
Better performance for gaming, design, and video work
Luna Display connects directly to GPU ports
Compatible port usually located on back of graphics card
Integrated Graphics (iGPU):
Built into your CPU (processor)
Uses system memory for graphics processing
Luna Display connects to motherboard ports (less likely to function)
Common in budget builds and laptops
💡 Best Performance: Luna Display works best when connected to a dedicated GPU rather than integrated graphics.
📋 Connection Guidelines for Custom PCs
USB-C Limitations:
Most GPUs do not have USB-C ports
USB-C Luna Display mainly for newer systems
Check your graphics card specifications first
🚫 What NOT to Use
❌ PCI-e Expansion Cards
Do not use Luna Display with:
Thunderbolt PCI-e cards
USB-C expansion cards
Any add-in cards that provide additional ports
Why this doesn't work: These cards are not typically directly connected to your graphics card, so Luna Display cannot access the graphics processing it needs.
⚠️ Important note: If you are able to get your expansion card connected directly to your dedicated GPU, a Thunderbolt PCI-e card may work. However, this is not something our support team can assist you with.
❌ Other Unsupported Connections
Daisy chaining: Cannot connect Luna Display through another monitor
Adapters: No HDMI-to-USB-C or other adapter connections
Motherboard ports: Only use if you have compatible integrated graphics with a display-capable port (no dedicated GPU)
🎞️ How to Identify Your Graphics Setup
🎞️ How to Identify Your Graphics Setup
🔍 Finding Your Graphics Connection
If you have a dedicated graphics card:
Look for ports on the back of your graphics card (usually lower on the PC)
Ignore motherboard video ports (usually higher up)
Connect Luna Display to graphics card if there is a USB-C port
🗒️ Note for newer motherboards: If your motherboard has a video port with DisplayPort In capabilities, the manual for your PC and its components will typically have instructions on how to properly connect the port to your GPU.
If you only have integrated graphics:
Use the motherboard video ports (no graphics card installed)
Connect Luna Display to motherboard display-capable USB-C port.
Integrated graphics on a desktop PC often are unable to support displays at higher resolutions, so please keep this in mind when configuring your display connected through Luna.
💡 Quick check: If you're gaming or doing graphics work, you likely have a dedicated GPU. If it's a basic office computer, you might only have integrated graphics.
🛠️Troubleshooting Connection Issues
🛠️Troubleshooting Connection Issues
🔧 Connection Problems?
If Luna Display isn't working properly:
Verify GPU connection: Make sure you're plugged into the graphics card, not motherboard
Check for adapters: Remove any adapters or dongles
Try different GPU port: Use another port on your graphics card
Update GPU drivers: Ensure your graphics drivers are current
⚠️ Important: Luna Display requires the hardware unit to be connected for all connection types. The software alone will not work.
Additional Compatibility Notes
📋 System Requirements
Remember that Luna Display for Windows requires:
Windows 10 (64-bit, Build 1809 or newer) or later
Compatible graphics card with DirectX 11 support
Direct connection to graphics processing hardware
🔗 Need more help?
Check our full system requirements for complete compatibility information: