26 replies to this topic

[Florie]

#!/bin/sh

# toggle_mode.sh by mrvica
MODE=`cat /proc/stb/video/videomode`
echo active mode $MODE
echo 720p > /proc/stb/video/videomode
cat /proc/stb/video/videomode
sleep 1
echo $MODE> /proc/stb/video/videomode
cat /proc/stb/video/videomode

you my try this script, hopefully you get your OSD restored, it switches for a moment to 720p and back to your active mode, instead of 720p you my try another mode, you get them listed with

cat /proc/stb/video/videomode_choices

 

SOrry, it is not working. My Display always sahs it it 720p@60 like stated above. When I do my resolutin in a/v settings "trick", your script is starting to work and switches every resolution correctly. But not initial

[Erik Slagter]

If I was you, I go a shop and purchase a new HDMI cable compatible with 2.0a (latest HDMI version) and test it.

Since you have now a 4K box you perhaps use a too old version HDMI cable and it gives trouble to the box so the box decrease the resolution to match the cable specification that you use.

The only difference between HDMI cables is the maximum (reliable!) bandwidth supported. The HDMI interface cannot detect what HDMI cable is attached. This also means that if you have a very cheap and very old HDMI cable, it might be able to carry UHD@60, if it's really short. If it's too long, you'll start to see pixelation or unable to sync. EDID is negotiated over a very slow I2C line (100 kHz) which will always work.

[Florie]

So, one more thing, as it did not get any better. I installed the autoresolution plugin and that did a bit of a trick.I configured that a 720p is a 720p and anything else 1080p. So when I turn on the TV it is wrong like stated in the beinnig of this topic. But when I change then to a 720p and afterwars to a 1080p, the resolution stays correct @1080p. So my question is, if I can use a specific part of the autoresolutin code (I actualley do not need this plugin, just for my standby problem) that the duo4k switches between 720p and 1080p directly after startup once, because this would be the only solution I can see now.

[Erik Slagter]

I'd say explore the entry /proc/stb/video/videomode

[Florie]

ok, got it working with

#!/bin/sh

# toggle_mode.sh by mrvica
MODE=`cat /proc/stb/video/videomode`
echo active mode $MODE
echo 1080p > /proc/stb/video/videomode
cat /proc/stb/video/videomode
sleep 1
echo $MODE> /proc/stb/video/videomode
cat /proc/stb/video/videomode

So use echo 1080p instead of 720p as mentioned above. Now the final question. Could I automatically let the script run if the box was in normal standby and got switched to "on"?

[Erik Slagter]

BTW this is on our issuelist for the duo4k we're planning to send to VU+.

[Florie]

@Erik Thank you