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hi,
i have an Thinkpad P14s Gen 2 AMD on an Thinkpad USB-C Dock Gen 2.
Latest Arch installed. Wayland, Gnome.
I want to connect an 4k@60Hz Monitor on the Dock via HDMI 2.0.
But as well via laptop port as via dock i only get 4k@30Hz, HDMI 1.4
But the laptop supports HDMI 2.0, the dock supports HDMI 2.0 and i have an HDMI 2.0 cable.
Please help, i'm very frustrated.
Regards,
Arthur
Last edited by arthurw (2021-10-07 07:03:10)
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Some monitors (my own included) support HDMI 2.0 only on certain ports.
--
saint_abroad
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Thanks sabroad, i will test this
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i have an HDMI 2.0 cable.
Such thing doesn't exist.
The actual, legit version tag you're looking for (I'm not making this up) is "HDMI Premium High Speed", the "premium" is important (again: this is not a prank, this *is* the official cable "version")
Alternatively "HDMI Ultra High Speed" (one grade higher)
You can also try adding this modeline
% cvt12 3840 2160 60 -b
# 3840x2160 @ 60.000 Hz Reduced Blank (CVT) field rate 60.000 Hz; hsync: 133.320 kHz; pclk: 522.61 MHz
Modeline "3840x2160_60.00_rb2" 522.61 3840 3848 3880 3920 2160 2208 2216 2222 +hsync -vsync
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Thanks for your reply. I have an HDMI Premium High Speed cable an i am using wayland, so xrandr is not working
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Can you try Xorg?
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Solution: It was an monitor setting. Thanks to all and the community.
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Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.
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I wanted to do this yesterday, but i could not found the mark as resolved button. Where can i resolve this issue?
Last edited by arthurw (2021-10-07 05:50:51)
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Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.
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