4k@60Hz no video output on Raspberry Pi 4

kuroneko · December 14, 2020 at 10:09 AM

Hello,

I have a Raspberry Pi 4 (rev 1.2), a Philips 436M6VBP monitor and an HDMI cable that I think should support 4k@60Hz (I can't find the reference anymore. But the eshop where I bought it with my rasp only has mHDMI cables compatible with 4k@60Hz, so I guess mine is also compatible). When I add hdmi_enable_4kp60=1 option, the monitor doesn't detect any video input. Without hdmi_enable_4kp60, LibreELEC run fine at 4k@30Hz. Btw I don't see any monitor setting like "HDMI ultra HD" or alike (like said in No 4K resolution on RPI4 )

**Da Flex** · December 16, 2020 at 10:16 AM Official Post

It's not suggested to use that HDMI mode, because video sources are usually lower than 60Hz, and it slows LE's GUI down. However, you can try to disable de-interlacing on LE's settings, or play with config.txt options (hdmi_safe=1, hdmi_pixel_encoding=2 etc.).