I've tested this today on both 20.04 (with linux-firmware-raspi2
1.20200212-0ubuntu1~ppa1) and 19.10.1 (with linux-firmware-raspi2
1.20200212-0ubuntu1~19.10.1~ppa1) and neither of them were able to
connect to the 802.11ac access point.
I see the same journal entries mentioned previously:
Mar 10 20:57:10 ubuntu wpa_supplicant[1090]: wlan0: Failed to initiate sched
scan
Mar 10 20:57:18 ubuntu wpa_supplicant[1090]: wlan0: Failed to initiate sched
scan
Additionally, I notice that the output of 'iw dev' shows different
channels and widths than on Raspbian:
Interface wlan0
ifindex 3
wdev 0x1
addr dc:a6:32:37:37:08
type managed
channel 128 (5640 MHz), width: 20 MHz, center1: 5640 MHz
txpower 31.00 dBm
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https://bugs.launchpad.net/bugs/1862760
Title:
Unreliable 802.11ac connection on our raspi images
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