---
name: "glxheads"
section: "1"
platform: "linux"
package: "mesa-utils"
version: "9.0.0-2+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/glxheads"
---

# glxheads(1)

exercise multiple GLX connections

## NAME

glxheads - exercise multiple GLX connections

## SYNOPSIS

**glxheads** \[*display* ...\]

## DESCRIPTION

The *glxheads* program will try to open GLX connections on multiple X displays as specified on the command-line. If a connection can be made it will try to create a direct GLX context (and fallback to using indirect contexts if that fails) and open a window displaying a spinning green triangle.

If no display names are specified, *glxheads* will default to opening a single local connection on display 0.

## EXAMPLE

To open a local connection on display 0 and two remote connections to the hosts *mars* (display 0) and *venus* (display 1), run glxheads with the following command-line:

```
$ glxheads :0 mars:0 venus:1
```

## AUTHOR

glxheads was written by Brian Paul \<brian.paul@tungstengraphics.com\>.

This manual page was written by Thierry Reding \<thierry@gilfi.de\> for the Debian project (but may be used by others).