==== TeamViewer for Dual-Screen Sharing ====

**Core Functionality:**
  - ✅ **Full desktop control** (view both host monitors simultaneously)
  - ✅ **Switch between monitors** during session
  - ❌ **No native simultaneous sharing** (like Zoom's multi-stream)

=== Key Features ===
| Capability          | TeamViewer          | Zoom               |
|---------------------|---------------------|--------------------|
| View both screens   | Yes (as thumbnails) | Yes (independent)  |
| Present both screens| No*                 | Yes                |
| Resolution          | Adaptive (max 4K)   | Fixed 1080p        |
| Cost (Commercial)   | $50.90/mo           | $149.90/yr         |

=== Workarounds ===
1. **Mirror Displays** (Windows):
   - `Win+P` → "Duplicate" → Share single screen
   - //Shows identical content on both monitors//

2. **Custom Resolution** (Advanced):
   - Create virtual super-wide display (NVIDIA Surround/AMD Eyefinity)
   - Share as single screen

=== Critical Limitations ===
  - Attendees **cannot choose** which screen to focus on
  - Business license required for **professional use**
  - Mobile attendees see **compressed view**

**Best For:**
  - IT support sessions
  - When **control** is needed (not just viewing)
  - Secure external collaborations

//Alternatives://
  - [[solutions:zoom|Zoom Multi-Share]] (better for presentations)
  - [[solutions:obs|OBS Virtual Cam]] (free but complex)