DRM database property: ACTIVE

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Details

Name
ACTIVE
Flags
atomic
Type
range
Attached to
CRTC
Specification
[0, 1]

Documentation

Atomic property for setting the power state of the CRTC. When set to 1
the CRTC will actively display content. When set to 0 the CRTC will be
powered off. There is no expectation that user-space will reset CRTC
resources like the mode and planes when setting ACTIVE to 0.

User-space can rely on an ACTIVE change to 1 to never fail an atomic
test as long as no other property has changed. If a change to ACTIVE
fails an atomic test, this is a driver bug. For this reason setting
ACTIVE to 0 must not release internal resources (like reserved memory
bandwidth or clock generators).

Note that the legacy DPMS property on connectors is internally routed
to control this property for atomic drivers.

Driver support

✓ adp
✓ amdgpu
✓ apple
✓ ast
✓ bochs-drm
✓ drm-rp1-dsi
✓ evdi
✓ exynos
✗ gma500
✓ i915
✓ imx-dcss
✓ imx-drm
✓ imx-lcdif
✓ kirin
✓ mediatek
✓ meson
✓ msm
✓ mxsfb-drm
✓ nouveau
✓ nvidia-drm
✓ omapdrm
✓ panel-mipi-dbi
✗ pvr
✓ qxl
✗ radeon
✓ rcar-du
✓ rockchip
✓ simpledrm
✓ starfive
✓ sun4i-drm
✓ sunxi-drm
✓ tegra
✓ tilcdc
✓ vboxvideo
✓ vc4
✓ virtio_gpu
✓ vkms
✓ vmwgfx
✓ xe
✓ xlnx