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orangepi-xunlong / linux-orangepi

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rk3588 Realtek 8821CU (AC600) causes a boot hang when inserted #33

Closed Joshua-Riek closed 1 year ago

Joshua-Riek commented 1 year ago

Hello, the kernel will hang when inserting a Realtek 8821CU (AC600) WiFi and Bluetooth adapter. This has been observed a few times in the following issues ubuntu-orange-pi5/#91 and ubuntu-orange-pi5/#38. Some people do not have any issues with this, and some do.

The USB seems to reset continuously, as shown in the below kernel log snippet:

[   11.937040] vendor storage:20190527 ret = -1
[   41.450573] usb 2-1: reset high-speed USB device number 2 using ehci-platform
[   72.170556] usb 2-1: reset high-speed USB device number 2 using ehci-platform
[  102.887226] usb 2-1: reset high-speed USB device number 2 using ehci-platform
Damenly commented 1 year ago

It's about usb_modeswitch. When I tried to bring the RTL8821CU up on OpenFyde the dmesg occured too. Try the instructions at https://github.com/song940/rtl8821cu.

Joshua-Riek commented 1 year ago

Thank you, it's working now!