Roku Express + with composite video and HDMI video.
HDMI works fine. When composite video is used, picture is dark.
Is there a way to adjust picture brightness when using composite video?
The older Roku Express+ (models 3710, 3910) use composite not component. Some TV inputs are hybrid composite/component, where the green component also serves as the yellow composite. Some automatically switch to composite when that alone is connected, others use a switch or menu setting to change it to composite.
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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Brightness is a TV control - you need to adjust it via your TV's settings.