Geoffrey McRae 82c59cecf2
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[idd] helper: retry topology after desktop access failure
The interactive Helper can start when the console user token exists but
before WinSta0\Default is ready. SetDisplayConfig then returns
ERROR_ACCESS_DENIED while recovery exit caches the failure and keeps
topology enforcement suppressed.

Keep the recovery request pending while desktop access is transient.
Move the pipe worker to the input desktop and retry without caching
intermediate failures. Leave an exhausted access failure uncached so a
later replay can recover.

Restore the periodic enforcement timer and retry topology without
reapplying a display mode that Windows has already accepted.
2026-08-21 01:02:10 +10:00
2017-12-14 22:22:44 +11:00
2026-08-20 16:53:10 +10:00
2026-05-31 15:13:57 +10:00
2018-05-31 13:28:36 +10:00
2017-10-31 19:07:16 +11:00

Looking Glass

Looking Glass lets you use a Windows virtual machine from Linux with very low display and input latency. The current recommended setup uses the Looking Glass Indirect Display Driver (IDD) in the Windows guest and the Looking Glass Client on the Linux host.

Start here

The Linux client is currently distributed as source code and must be built before it can be installed. The end-user guide covers the complete process:

  1. Build the Linux client.
  2. Configure shared memory for the virtual machine.
  3. Install the Looking Glass IDD in Windows.
  4. Install and run the client.

See the Looking Glass documentation for the current requirements and setup guide.

Source archives

IMPORTANT

This project contains submodules that must be checked out if building from the git repository! If you are not a developer and just want to compile Looking Glass, please download the source archive from the website instead:

https://looking-glass.io/downloads

Source code for the documentation can be found in the doc directory.

You may view this locally as HTML by running make html with python3-sphinx and python3-sphinx-rtd-theme installed.

Description
An extremely low latency KVMFR (KVM FrameRelay) implementation for guests with VGA PCI Passthrough.
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