Prismatik not working with driver update wch.cn - Ports - 3.8.2023.2

Question

Prismatik not working with driver update wch.cn - Ports - 3.8.2023.2

terrainer opened this issue a year ago · comments

Just a heads up for everyone.

Windows 11 updated my COM3 driver to wch.cn - Ports - 3.8.2023.2, causing Prismatik to be unable to control the LED strip I was using.

Everything is working again after going to Device Manager > Ports (COM & LPT) > USB-SERIAL CH340 properties > Driver > Roll Back Driver

Hope this helps anyone who is having trouble after recent updates.

Muzzygizmo · Answer 1 · Fri May 05 2023 08:51:56 GMT+0800 (China Standard Time)

I agree, when downgrading the driver to 3.5.2019.1 everything is back to normal.
https://www.catalog.update.microsoft.com/Search.aspx?q=CH340
Thank you

Ewan O'Toole · Answer 2 · Sat Oct 28 2023 20:22:15 GMT+0800 (China Standard Time)

I agree, when downgrading the driver to 3.5.2019.1 everything is back to normal. https://www.catalog.update.microsoft.com/Search.aspx?q=CH340 Thank you

Thank you SO much for finding this.