DL-6950 not supporting 60Hz display modes

shol74 · 07-10-2018, 04:40 PM

I leave this here in the hopes it might help someone else in the future...

I managed to fix it myself for the display I was using. I had to make sure the input source on the display was actually called "PC" and the make sure the the "HDMI UHD Color" menu option was enabled.

Not sure why the builtin laptop graphics HDMI output didn't have these issues, nor why a 2nd borrowed display from a different manufacturer also showed the same problem. If there was something that could have been done in the display driver to just respect the reported EDID timings (which I assume the builtin graphics did) then this might have just worked.

AlbanRampon · 07-18-2018, 02:43 PM

Hello,

Whilst on holidays, I have followed a similar bug report on an LG 40UB800V television via ticket.

In that case, the EDID was different in each mode of the television.
Resolution of 4Kp60 was not in the EDID of the PC mode, only on the HDMI-DTV mode.
The limited colour space in that mode was also not supported.

Your description fits the conclusion and description from LG website.
https://www.lg.com/uk/support/produc...8590776-others

Kind regards,
Alban

07-18-2018, 02:43 PM	#2
AlbanRampon Senior Member Join Date: Sep 2015 Posts: 1,685	Hello, Whilst on holidays, I have followed a similar bug report on an LG 40UB800V television via ticket. In that case, the EDID was different in each mode of the television. Resolution of 4Kp60 was not in the EDID of the PC mode, only on the HDMI-DTV mode. The limited colour space in that mode was also not supported. Your description fits the conclusion and description from LG website. https://www.lg.com/uk/support/produc...8590776-others Kind regards, Alban __________________ Alban Rampon Senior product manager, universal docking stations and accessories Where to download the latest DisplayLink drivers How to clean up a corrupted installation How to report issues to DisplayLink for a speedy resolution

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07-10-2018, 04:40 PM	#1
shol74 Junior Member Join Date: Jul 2018 Posts: 3	I leave this here in the hopes it might help someone else in the future... I managed to fix it myself for the display I was using. I had to make sure the input source on the display was actually called "PC" and the make sure the the "HDMI UHD Color" menu option was enabled. Not sure why the builtin laptop graphics HDMI output didn't have these issues, nor why a 2nd borrowed display from a different manufacturer also showed the same problem. If there was something that could have been done in the display driver to just respect the reported EDID timings (which I assume the builtin graphics did) then this might have just worked.