Lumagen Radiance Mini-3D - Manual (Page 23)

Section 5 – Video Configuration
Radiance Mini rev 091211 15
HDMI Level
This command specifies if the HDMI inputs use video levels or PC levels. The input video level should be set to
match the expected range of your video source. A mismatch can cause the image to be too dark or bright. An
output video level mismatch can also have the same effect. The command is:
MENU → Input → HDMI Setup → Level → (Video, PC)
HDMI input EDID Display Information
NOTE:
Lumagen recommends using default video EDID or user-defined video EDID. This
enables the Radiance to report video EDID back to the sources even when the
display is off, and it can also improve power-up and switching speed.
EDID is information that can be read over DVI/ HDMI cables to influence how source devices deliver video, which
helps produce an optimal picture. There are 4 settings for the Lumagen EDID interface. The default setting enables
all of the display modes the Radiance supports. The User defined setting allows the user to individually select
which capabilities will be advertised to the source. You can scroll through the list of capabilities with the up/down
arrows and toggle advertising the feature with the left/right arrows. With the Passback setting, the Lumagen will
read the EDID from the display connected to the output and pass that back to the source. The command is:
MENU→ Input→ HDMI Setup→ Video EDID→ (Default, User defined, Passback Out 1)
HDMI input hotplug mode
NOTE:
Do not set Hotplug to “always on” unless necessary since this eliminates the
ability of the Radiance to inform the source of a change in the EDID data.
Hotplug alerts a DVI/HDMI device to downstream EDID changes when toggled. For some devices, such as a PC, it
may be necessary to keep hotplug high at all times. The hotplug signal is part of a HDMI/DVI interface. The
Radiance provides two hotplug settings, "Normal" and "Always On". The "Normal" behavior is to toggle hotplug
signal sent back to the HDMI source when the EDID information needs to be updated. The source will then read
the EDID and make any necessary changes. If the device connected to the Radiance output toggles the hotplug to
the Radiance then there may be some new EDID information to passback to the sources and, if hotplug is set to
"Normal", hotplug on all the inputs may be toggled to achieve this.
Some sources, such as PC's, stop sending video on HDMI/DVI, or enter sleep mode, when the hotplug signal is not
asserted, so setting hotplug on the Radiance to "Always On" is a potential solution. As mentioned above, generally
Hotplug should be set to “normal.”
Sometimes the connectivity of a system can cause a "hotplug loop." An example of this is when connecting the
Radiance output to an audio receiver and then hooking the HDMI monitor output of the receiver to one of the
Radiances' inputs. Then, if the Radiance toggles its Hotplug back to the receiver’s output, the receiver would check
the Radiance’s EDID and then toggle its hotplug back to the Radiance to inform it about this new EDID. The
Radiance again toggles Hotplug in response. This creates a continuing loop of HDMI activity that may not end.
MENU→ Input→ HDMI Setup→ Hotplug mode→ (Normal, Always On)
Auto Aspect
For HDMI sources (not DVI), aspect information may be sent from the source. Enabling HDMI Auto-Aspect allows
the source to set the input aspect ratio. You can set “NLS when applicable” (non-linear stretch) in order to stretch
the width to fill the screen based on the input and output aspect ratios. The Automatic input aspect ratio selection
can be overridden by manually selecting an input aspect ratio. If the “Sticky aspect override” is on, this new aspect
will be used until the input is reselected, the Input button is pressed, or a memory button is pressed. If the “Sticky
aspect override” is off the next time a different HDMI auto aspect is received the aspect will change to that input
aspect ratio. The command is:
MENU→ Input→ HDMI Setup→ Auto Aspect→ (On, Off)