2023-01-25, 00:58
(2023-01-25, 00:06)HiassofT Wrote: [ -> ]The official RPi HDMI cable is working fine, if you buy some other cable make sure it's either HDMI Premium certified or specced to work with 18Gbps (which is basically the same thing). Anything not specced to work at 18Gbps (like the 9Gbps / 4kp30 cables) will very likely result in artefacts or "no signal".thank you so much for your assistance and knowledge on this subject. i will play around with settings, will turn input signal plus off and if not solved will get back on support with Samsung as i don't see why the HDMI port im using doesn't function as advertised.
But you really have to get your TV to announce 4kp60 modes in EDID first - otherwise the RPi won't use it.
Play around with TV settings, study the manual, reboot your RPi after you changed settings on TV and then check with edid-decode again.
If you got the settings right on your TV edid-decode should report these modes and a maximum dotclock of (at least) 600MHz instead of the 300MHz iit showed in the output you posted Also note that this is independent of the HDMI cable etc you use - the EDID always reports all available modes / capabilities of the TV.
Here's a snippet from my LG 55C8 OLED
Code:
Display Range Limits:
Monitor ranges (GTF): 58-121 Hz V, 30-136 kHz H, max dotclock 600 MHz
...
Video Data Block:
VIC 97: 3840x2160 60.000000 Hz 16:9 135.000 kHz 594.000000 MHz
VIC 96: 3840x2160 50.000000 Hz 16:9 112.500 kHz 594.000000 MHz
VIC 16: 1920x1080 60.000000 Hz 16:9 67.500 kHz 148.500000 MHz
VIC 31: 1920x1080 50.000000 Hz 16:9 56.250 kHz 148.500000 MHz
...
so long,
Hias
cheers