EGLKeepalive 1.0.0

Keep a GPU from sleeping by nudging an EGL context

EGLKeepalive

Mini script using ModernGL to keep a GPU from entering D3cold, by nudging an EGL context every second. Useful if you have a Nvidia Optimus laptop and the delay of GPU activation is annoying.

Installing

Available on PyPI as EGLKeepalive

Recommended install using pipx:

$ pipx install EGLKeepalive

Example effect

$ cat /sys/class/drm/card*/device/power_state
D3cold
D0
$ # lazy Nvidia GPU is fast asleep; power saving or something...

$ DRI_PRIME=0 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: Mesa Intel(R) HD Graphics 630 (KBL GT2)
$ # not this one

$ DRI_PRIME=1 glxinfo | grep "OpenGL renderer"
OpenGL renderer string: NV136
$ # this one, so use DRI_PRIME=1

$ DRI_PRIME=1 egl-keepalive &
$ # wakey wakey

$ cat /sys/class/drm/card*/device/power_state
D0
D0
$ # it's OpenGL time