MiSTer FPGA Forum

Just want to make a note that my Edimax EW-7822ULC USB wifi dongle that has been working for years is now not showing up after the latest Linux update.

Linux:

• Updated realtek WiFi drivers (Grzegorz Krzystek).
• Updated in startup scripts to improve WiFi startup.

I believe it is one of the recommended wifi dongles.

It worked perfectly up until the 2023.04.23 release.

Just wanted to make people with Edimax adapters aware, so they make a backup before upgrading. If this chipset isn’t supported anymore, not a problem, I can get a new one — but it would be nice to have it confirmed as either being on purpose or a bug.

Filed a ticket here for anyone that can add any detail on model number or wants to follow along:

https://github.com/MiSTer-devel/Main_MiSTer/issues/769

Is it this one?
https://misterfpga.co.uk/product/mister ... i-adapter/

Same problem here. Mine ist this one:
https://www.amazon.com/dp/B01MY7PL10

rsn8887 wrote: ↑Sun Apr 23, 2023 6:26 pm

Same problem here. Mine ist this one:
https://www.amazon.com/dp/B01MY7PL10

Same. Adding to the ticket.

neogeo81 wrote: ↑Sun Apr 23, 2023 6:24 pm

Is it this one?
https://misterfpga.co.uk/product/mister ... i-adapter/

Hard to tell, as that page doesn’t have any info on chipset or model as far as I could see.

Currently confirmed broken by two separate sources in addition to myself is the Edimax EW-7822ULC.

Yes that’s the same one broken for me as well. EW-7822ULC

I have also a Edimax but it is an older one EW-7811un. This one works. and the one from MisterUK also works.

Hello
Last updates :

Linux:

• Updated realtek WiFi drivers (Grzegorz Krzystek).
• Updated in startup scripts to improve WiFi startup.

Since the last update My edimax wifi usb key does not work anymore :/

Someone with the same problem ?

Log below :

Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.317309] usb 1-1.1: new high-speed USB device number 25 using dwc2
Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.406364] usb 1-1.1: New USB device found, idVendor=7392, idProduct=b822, bcdDevice= 2.10
Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.406386] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.406399] usb 1-1.1: Product: AC1200 MU-MIMO USB2.0 Adapter
Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.406409] usb 1-1.1: Manufacturer: Realtek
Apr 23 14:26:14 MiSTer user.info kernel: [ 2340.406418] usb 1-1.1: SerialNumber: 123456
Apr 23 14:26:14 MiSTer daemon.notice wpa_supplicant[4990]: Successfully initialized wpa_supplicant
Apr 23 14:26:14 MiSTer daemon.err wpa_supplicant[4990]: nl80211: kernel reports: Authentication algorithm number required
Apr 23 14:26:14 MiSTer daemon.notice wpa_supplicant[4990]: rfkill: Cannot open RFKILL control device
Apr 23 14:26:15 MiSTer daemon.err wpa_supplicant[4990]: Could not set interface wlan0 flags (UP): Operation not permitted
Apr 23 14:26:15 MiSTer daemon.err wpa_supplicant[4990]: nl80211: Could not set interface 'wlan0' UP
Apr 23 14:26:15 MiSTer daemon.notice wpa_supplicant[4990]: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Apr 23 14:26:15 MiSTer daemon.notice wpa_supplicant[4990]: rfkill: Cannot open RFKILL control device
Apr 23 14:26:16 MiSTer daemon.err wpa_supplicant[4990]: Could not set interface wlan0 flags (UP): Operation not permitted
Apr 23 14:26:16 MiSTer daemon.err wpa_supplicant[4990]: WEXT: Could not set interface 'wlan0' UP
Apr 23 14:26:16 MiSTer daemon.err wpa_supplicant[4990]: wlan0: Failed to initialize driver interface
Apr 23 14:26:16 MiSTer daemon.notice wpa_supplicant[4993]: Successfully initialized wpa_supplicant
Apr 23 14:26:16 MiSTer daemon.err wpa_supplicant[4993]: Could not read interface wlan1 flags: No such device
Apr 23 14:26:16 MiSTer daemon.notice wpa_supplicant[4993]: nl80211: Driver does not support authentication/association or connect commands

limi wrote: ↑Sun Apr 23, 2023 5:27 pm

Just want to make a note that my Edimax EW-7822ULC USB wifi dongle that has been working for years is now not showing up after the latest Linux update.

Filed a ticket here for anyone that can add any detail on model number or wants to follow along:

https://github.com/MiSTer-devel/Main_MiSTer/issues/769

Great !

https://github.com/MiSTer-devel/Main_Mi ... 1519977449

please try to apply patch from
https://github.com/MiSTer-devel/Main_Mi ... 1520889206

Had the exact same issue. The patch linked to by NineX happily worked.

I have a similar problem with a different wifi adaptor (also recommended). I purchased this recommended wifi/Bluetooth adaptor:
https://www.amazon.com/gp/product/B07YD ... UTF8&psc=1

Everything was working fine until the latest update, like others in the thread. Bluetooth works fine, wifi will locate the network and fail at connection screen. (I was able to get the wifi working with some router reboots etc, but it would always loose connection after a reboot of the MiSter.

Attempting to run the patch above produced the following output:

/media/fat/RTL# install.sh
creating backup
installing new driver
depmod: ERROR: failed to load symbols from /lib/modules/5.15.1-MiSTer/kernel/drivers/net/wireless/realtek/rtl8821au/._8821au.ko.xz: Exec format error
Done, reboot in 10 seconds
/media/fat/RTL# Connection to xxx.xxx.xxx.xxx closed by remote host.

I am on a mac and this may be related to the hidden ._xyz files that OS X creates. I can try to run the script from my ancient windows box to se if it makes a difference.

Hooking up an ethernet cable will somehow force the wifi to connect on reboot.