LG 32GQ750-B Purple Screen on 4K Output

USB Docking Stations UD-ULTCDL
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I’ve had my docking station for some years now and switch between my personal computer (Thinkpad-X1-Yoga - Windows 10 Pro) and my work computer (MacBook Pro 13" 2020 - macOS Sonosma v14.5). I use this with 3 external monitors. I recently replaced my main monitor with a LG 32GQ750-B. This works fine on my PC, but displays graphics with a purple hue on my Mac. I’ve poked at all of the settings and haven’t gotten anywhere. This only is an issue with the 4K output on the dock, but as this is my largest monitor and only one that is 4K, that is the one that I will be using. Any suggestions will be greatly appreciated :slight_smile:

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Hi Ethan,

Thank you for contacting Plugable! I am sorry to hear that your station is not functioning as expected, and would be happy to provide additional support.

To help diagnose the issue, may I ask you to please keep the device connected to your laptop and everything still attached (even if not working as expected) and send us the output of our diagnostic utility PlugDebug? → https://plugable.com/pages/plugdebug

Once you have the logs, simply send an email to support@plugable.com with the subject line of “Ticket 450861” so that we can prioritize that case and match it to this inquiry.

If you could provide your Amazon Order ID (or other proof of purchase) associated with your Plugable device, I would be happy to check on your warranty status as well.

Thank you for giving us the chance to help!

Ryoma
Plugable Technologies
www.plugable.com/support

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Do you want me to do that on my Mac or on my PC?

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Hi Ethan,

Thank you for asking!

If you could kindly provide logs from both host laptop, I would appreciate it.

Thanks for your patience while we work to help!

Ryoma
Plugable Technologies
www.plugable.com/support

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Okay, I emailed the plugdebug log from my PC and the system report from my Mac. I do run Parallels on my Mac, so let me know if it is better to run plugdebug on Parallels than the system report and I will do that as well.

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Amazon Order # 112-1358570-9449848

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Following up - were those logs helpful?

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Hi Ethan,

Thank you for reaching out to us directly! I would be happy to continue troubleshooting via email going forward.

Thanks for your patience while we work to help!

Ryoma
Plugable Technologies
www.plugable.com/support

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