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A surprising number of monitor docks only support USB 2 (perhaps because they think people will only use keyboards or mice). Also, many monitor docks power off
by JoshTriplett 4y ago
A surprising number of monitor docks only support USB 2 (perhaps because they think people will only use keyboards or mice).
Also, many monitor docks power off the USB ports when they go to sleep, and then you can't use a device on those ports (including a keyboard or mouse) to wake up the computer.
- izacus 4y agoThe reason for common USB2 in monitors is lack of bandwidth - the non-Thunderbolt USB leaves only space for USB2.0 speeds next to 4K@60Hz connection. Most new monitors will however allow you to switch to USB3.0 speeds at the cost of being capped at 4K@30Hz.
- innocenat 4y agoThere is plenty of bandwidth if DP 1.4 is used. DP1.4 only require one superspeed pair for 4K@60Hz, leaving the other pair for USB3.1 data connection.
- izacus 4y agoI'm guessing the monitors aren't using DP1.4 then, since now I've met many (Phillips, Lenovo, etc.) USB-C screens which have this switch in their settings.
- salmonlogs 4y agoMonitor USB ports also tend to have limited power output too. If you want to use a webcam and a usb Jabra speakerphone for video calls you may exceed the power limits. Took me way too long to diagnose the issue