[Bug 110496] [GLK] no signal - with samsung 4k TV - HDMI UHD Color (ENABLED)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110496

--- Comment #34 from teeedubb at gmail.com ---
I have been playing around with custom modelines and with HDMI UHD color off I
am able to force 4k60/50 by using the modeline from 4k60/50 with HDMI UHD color
on. As far as I can see the 4k60 mode uses a 594mhz clock rate (its in the
modeline). I am not sure which chroma subsampling is being used because I'm not
sure how to find out.

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