Please run `sudo ubuntu-drivers install` to install Broadcom proprietary wifi driver.
** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1860954 Title: b43 WiFi monitor mode doesn't work with BCM4321 card Status in linux package in Ubuntu: Incomplete Bug description: My Inspiron 6400 laptop has a Dell Wireless 1500 Draft 802.11n WLAN Mini-Card with BCM4321 chip. I was using airmon-ng from aircrack-ng to enter monitor mode. It claims the chipset is "non-mac80211 device? (report this!)" but I think that's incorrect information and only cosmetic. It does create the monitor device. Then I was using Wireshark to capture packets from that device. I was only getting beacon, probe request and probe response packets, despite knowing that there was data on the network. As a workaround, it is possible to properly monitor by using a different driver, from the broadcom-sta-dkms package. After installing that package and rebooting, I couldn't connect to my wireless network anymore, but I could "echo 1 | sudo tee /proc/brcm_monitor0" to create a prism0 device. Changing channels was a problem, maybe requiring a change on the associated non-monitor device before enabling the monitor. But capture on prism0 worked great. I was getting all kinds of packets and was able to decrypt data in Wireshark after enabling "Assume packets have FCS". Even though I couldn't connect to my network, I could capture and decrypt its traffic. Rebooting seems required for switching from b43 to wl drivers, because otherwise the wl driver doesn't start properly. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: linux-image-5.3.0-26-generic 5.3.0-26.28 ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13 Uname: Linux 5.3.0-26-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.3.0-26-generic. ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: STAC9200 Analog [STAC9200 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bgjenero 1492 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 27' Mixer name : 'SigmaTel STAC9200' Components : 'HDA:83847690,102801bd,00102201 HDA:14f12bfa,14f100c3,00090000' Controls : 22 Simple ctrls : 9 CurrentDesktop: XFCE Date: Mon Jan 27 00:09:29 2020 HibernationDevice: RESUME=UUID=62d89c78-536c-42ab-968d-463122f8c3a2 InstallationDate: Installed on 2012-01-19 (2930 days ago) InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) Lsusb: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Dell Inc. MM061 ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-26-generic root=UUID=d590f141-7b8d-421d-84b3-baa43181a241 ro resume=/dev/sda6 RelatedPackageVersions: linux-restricted-modules-5.3.0-26-generic N/A linux-backports-modules-5.3.0-26-generic N/A linux-firmware 1.183.3 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to eoan on 2019-10-25 (94 days ago) dmi.bios.date: 06/13/2007 dmi.bios.vendor: Dell Inc. dmi.bios.version: A17 dmi.board.name: 0XD720 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/13/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: MM061 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1860954/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp