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Old 10-07-2019, 04:27 PM   #11
Quixventure
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Same issue with 5.2.1 and 5.2 on macOS Catalina.

2016 MacBook Pro (non-touchbar) and Dell D6000 with USB-C to USB-A adapter attached to a powered hub.

The issue is fixed for me by uninstalling 5.2(.1) and reverting to 5.1.1

With the old 5.1.1 driver I have both screens available and working the same as it did in Mojave.

Tried lots of things with 5.2 and 5.2.1 to no avail.
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Old 10-08-2019, 07:02 AM   #12
Schrooten
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reversed to driver 5.1.1, My 4K monitor is now working, but the resolution is off. I can't see the dock, its somewhere below my monitor.. I guess I have to wait for the updated driver..
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Old 10-08-2019, 01:01 PM   #13
Schrooten
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Reversed to 5.0.1, now everything seems OK on Catalina
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Old 10-08-2019, 03:59 PM   #14
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I am having the same issue on my Dell 2400: the system sees the monitor--the dock even moves to that window--however, the screen stays black.
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Old 10-08-2019, 07:24 PM   #15
lspintzyk
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Hi.

First of all. There is new macOS DisplayLink 5.2.1 beta 2 driver. Please make sure to have it installed: https://www.displaylink.com/downloads/file?id=1433

Secondly, Can you please follow that instructions? Does any of them helps you?
https://support.displaylink.com/know...ing-permission
https://support.displaylink.com/know...lay-is-working
https://support.displaylink.com/know...-functionality


If you still have issues please gather diagnostic information and attach them in the post.
Please use our support tool:
https://www.displaylink.com/downloads/file?d=66

I would be grateful for output of terminal command:
sudo kextstat | grep DisplayLink
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Old 10-09-2019, 09:15 AM   #16
GlennBruy
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Tried it all, kext file stays unloaded.

Quote:
Originally Posted by lspintzyk View Post
I would be grateful for output of terminal command:
sudo kextstat | grep DisplayLink
42 0 0xffffff7f8275a000 0xb000 0xb000 com.displaylink.driver.DisplayLinkDriver (5.1 (40)) C66FE504-BB12-337C-906A-3A123E9A64B5 <41 13 6 5 3>
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Old 10-09-2019, 12:08 PM   #17
Schrooten
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Updated driver to the new beta, black screen still the same.

monitor is detected, but goes to sleep 'no input detected'.


output kextstat:
42 0 0xffffff7f8276c000 0xc000 0xc000 com.displaylink.driver.DisplayLinkDriver (5.0 (31)) 4E4C9A34-2960-3AC0-8BB7-861686561DAB <41 13 6 5 3>

ran the information tool, see attachment for details/output.
\
Attached Images
File Type: jpg Schermafbeelding 2019-10-09 om 14.04.38.jpg (6.3 KB, 0 views)
Attached Files
File Type: zip DisplayLinkInfo_Output_20191009_140359.zip (3.16 MB, 0 views)
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Old 10-09-2019, 04:25 PM   #18
Schrooten
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I think I forgot one step. https://support.displaylink.com/know...r-only-one-mon

running the kextcache command in recovery mode. Have done that now, including installing the new version. Kextstat now displays:

174 0 0xffffff7f83de0000 0xb000 0xb000 com.displaylink.driver.DisplayLinkDriver (5.2 (48)) A3EFB07A-5F72-3214-8C15-5F645B87E0CF <114 13 6 5 3>

which says version 5.2 driver. Will be testing tomorrow when I'm back at work.
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Old 10-10-2019, 05:57 AM   #19
Schrooten
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Everything works fine now :-)
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Old 10-10-2019, 02:50 PM   #20
Quixventure
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Same here, all fixed. You need to do the uninstall, reboot to recovery, run the kext terminal command and then reboot and install the 5.2.1 beta 2 driver... Takes a few min but worked like a charm.

Note - The d6000 still wont work for me unless I use it with the USB-A adapter, but i suspect that's a Dell firmware and power management issue. I ALWAYS have my screens flash after about 5 min from when I first plug in the D6000. If I am using the USB-A adapter, it all comes back in a second or two, if I am using USB-C, it might come back, but generally the light on the Dell D6000 turns orange and it all just stops working. Switch to USB-A. all good again.
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