After upgrading to 19.04 disco, the system is still too unstable to be useful. The current kernel is 5.0.0-13-lowlatency (buildd@lcy01-amd64-020).
I note the Intel driver has not changed after the upgrade from 18.10 cosmic, i.e. still iwlwifi-7265D-29.ucode, packaged within linux- firmware version 1.178. The details of the stack trace are different, but the outcome is the same (attached). The wifi connection is lost and kernel error messages spew out to the log. Stopping and restarting wifi makes no difference. The only "solution" is to shut down the system and reboot. Luckily I have a usb dongle that uses rtlwifi firmware, which works OK. ** Attachment added: "disco kernel log when intel driver hang is reported" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776443/+attachment/5261968/+files/bacchus-iwlwifi-hang-log-disco-2019-04-27 -- 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/1776443 Title: iwlwifi-29 kernel timeout queue active on fifo 2 and stuck Status in linux package in Ubuntu: Confirmed Bug description: dell inspiron 15 3565 and intel 3165. Difficult to report when wifi is down! Happens sometimes after a few minutes, never more than 30 minutes. Easy to capture journalctl when the network connection hangs. Intel fails on 2.4 GHz or 5 GHz, using several different AP's. The same system runs stable and perfect with a USB dongle Realtek RTL8188CUS, but I have to blacklist iwlwifi in /etc/modprobe.d/modprobe.conf to prevent iwlwifi hanging all network activity while simply scanning and not connected to an AP. I've had similar problems with this system under 17.10, but it has become more reproducible under 18.04. I've back-levelled the driver as far as possible, but they all hang the network. Because version 29 firmware is the latest in the bionic repository, and also on the intel support web site, I won't confuse matters by reporting earlier ubuntu kernels or iwlwifi versions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776443/+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
