"Unsupported Mode" With HDMI

ghjkl242

Estimable
Jul 5, 2014
3
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4,510
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Hi, I recently bought a Yamaha RX-671 Receiver and have been using the HDMI passthrough from a few devices to the TV. It has worked fine for about a month, but last night the TV started giving me an "unsupported mode" message. When plugged directly into the TV, all of my devices work. I have tried both resetting and updating the firmware of the receiver to no avail. Is there some solution to this?
 

Recycled

Honorable
Oct 31, 2013
114
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10,660
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There's a button on the receiver's remote labeled "HDMI" - press it once, wait a second.
If nothing comes on the screen, press it twice, then wait a second.
If nothing comes on the screen, press it three times,
and so on.

STOP when it shows something.

Pressing that button will cycle through the HDMI modes. (720p, 1080i, etc.)
 
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