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I am using the Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB
2.0 Adapter
This relies on the p54usb driver. It works great on kernel 4.18. I
upgraded to 5.0.0-3 and the device fails to start.
On the older kernel, things seem good:
[ 1255.546620] usb 3-1: new high-speed USB device number 3 using xhci_hcd
[ 1255.704106] usb 3-1: New USB device found, idVendor=413c, idProduct=8104,
bcdDevice=10.50
[ 1255.704110] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1255.704112] usb 3-1: Product: Dell Wireless 1450 Dual-band (802.11a/b/g) USB
2.0 Adapter
[ 1255.704115] usb 3-1: Manufacturer: DELL
[ 1255.830808] usb 3-1: reset high-speed USB device number 3 using xhci_hcd
[ 1255.979753] usb 3-1: Loading firmware file isl3887usb
[ 1255.980055] ieee80211 phy1: p54 detected a LM87 firmware
[ 1255.980058] p54: rx_mtu reduced from 3240 to 2384
[ 1255.980060] ieee80211 phy1: FW rev 2.13.25.0 - Softmac protocol 5.9
[ 1255.980063] ieee80211 phy1: cryptographic accelerator WEP:YES, TKIP:YES,
CCMP:YES
[ 1256.974586] ieee80211 phy1: hwaddr 00:14:a5:c6:56:ca, MAC:isl3892 RF:Xbow
[ 1256.976368] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[ 1256.976974] usb 3-1: is registered as 'phy1'
[ 1256.981866] p54usb 3-1:1.0 wlx0014a5c656ca: renamed from wlan0
I'm using:
Description: Ubuntu 18.04.3 LTS
Release: 18.04
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Po-Hsu Lin (cypressyew)
Status: Incomplete
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p54usb module in linux-modules-extra-5.0.0-23-generic does not work
https://bugs.launchpad.net/bugs/1839693
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