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Previously, if an HDMI display was connected at boot time when composite was enabled, the firmware FB would get "stuck" and a login console would not appear on either HDMI or composite.

With the change, a console will now appear, typically (invariably?) on HDMI (just as happens with HDMI + DPI). This may be helpful when booting to CLI when composite was enabled accidentally and cannot be viewed.

The old behaviour can be reinstated by adding the "nohdmi" option.

Previously, if an HDMI display was connected at boot time when composite
was enabled, the firmware FB would get "stuck" and a login console would
not appear on either HDMI or composite.

With the change, a console will now appear, typically (invariably?) on
HDMI (just as happens with HDMI + DPI). This may be helpful when booting
to CLI when composite was enabled accidentally and cannot be viewed.

The old behaviour can be reinstated by adding the "nohdmi" option.

Signed-off-by: Nick Hollinghurst <[email protected]>
@pelwell pelwell merged commit cf8f90d into raspberrypi:rpi-6.12.y Nov 19, 2025
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popcornmix added a commit to raspberrypi/firmware that referenced this pull request Nov 25, 2025
kernel: Add Waveshare 7-DSI-TOUCH-C screen support
See: raspberrypi/linux#7145

kernel: dtoverlays: tc358743: Update legacy compatible frag with cam0 override
See: raspberrypi/linux#7138

kernel: overlays: vc4-kms-v3d-pi5 parameter "composite" no longer disables HDMI
See: raspberrypi/linux#7150
popcornmix added a commit to raspberrypi/rpi-firmware that referenced this pull request Nov 25, 2025
kernel: Add Waveshare 7-DSI-TOUCH-C screen support
See: raspberrypi/linux#7145

kernel: dtoverlays: tc358743: Update legacy compatible frag with cam0 override
See: raspberrypi/linux#7138

kernel: overlays: vc4-kms-v3d-pi5 parameter "composite" no longer disables HDMI
See: raspberrypi/linux#7150
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2 participants