Device-specific documentation:
Manual pages:
Developer documentation:
Client-side:
Server-side:
Protocol specifications:
X11 Protocol & Extensions:
- X Window System Protocol, Version 11, Release 6.8 [PDF] [TXT]
- Big Requests Extension, Version 2.0 [PDF] [TXT]
- Composite Extension, Version 0.4
- DAMAGE Extension Protocol Version 1.1
- Display Power Management Signaling (DPMS) Extension, Version 1.0 [PDF] [TXT]
- Double Buffer Extension Protocol [PDF] [TXT]
- Extended Visual Information Extension [PDF] [TXT]
- DRI2 Extension Version 2.0
- X Generic Event Extension [PDF] [TXT]
- XFIXES Extension Version 5.0
- X Input Extension Version 1.5
- X Input Extension Version 2.x
- X Keyboard Extension [PDF] [TXT]
- MIT-SHM — The MIT Shared Memory Extension [PDF] [TXT]
- RandR — X Resize, Rotate and Reflect Extension Version 1.4.0
- Record Extension Protocol Specification, Version 1.13 [PDF] [TXT]
- X Rendering Extension Version 0.11
- X Resource Extension Version 1.2
- Security Extension Specification [PDF] [TXT]
- X Nonrectangular Window Shape Extension Protocol, Version 1.1 [PDF] [TXT]
- X11 Screen Saver Extension, Version 1.0 [PDF] [TXT]
- X Synchronization Extension Protocol, Version 3.1 [PDF] [TXT]
- XC-MISC Extension [PDF] [TXT]
- XTEST Extension Protocol, Version 2.2 [PDF] [TXT]
- X Video Extension Protocol Description Version 2
Other Protocols:
Other Specifications: