Same problem here with Ubuntu 20.04 on a Dell XPS 15 9500, but in my case it was triggered by update from kernel 5.11.0-38-generic to 5.11.0-40-generic.
Apt history shows the update as occurring last Friday morning, and the next time I rebooted (the day after) the WiFi module stopped working, message in dmesg as above. After the error, the WiFi module is not even visible to the BIOS. The only way to get the WiFi module to appear again is to remove the back of the laptop and disconnect the battery, but if I boot Linux it immediately is knocked out again. -- 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/1950492 Title: wifi stops working on Dell XPS 9310 Status in linux package in Ubuntu: Incomplete Bug description: After updating to linux 5.13.0-22 wifi stops working on Dell XPS 9310 with QCA6390. There are two errors in dmesg: 1. mhi: qcom_mhi_qrtr mhi0_IPCR: invalid ipcrouter packet 2. ath11k ath11k_pci 0000:72:00.0: failed to register fw indication: -110 ath11k_pci 0000:72:00.0: failed to send qmi firmware indication: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1950492/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
