wuarmin asked:
I have a new Lenovo ThinkPad T590 and installed Ubuntu 18.04 LTS. It works quite good, but I also experience system crashes. Maybe the hardware is too new.
Here’s the syslog of one crash
Furthermore there are cases where a keyboard key get stuck (i.e. iiiiiiii). If that happens the only solution is a reboot.
Futher investigations of the syslog show lots of wifi-errors. I.e.:
Jul 1 17:42:49 tou1120n03 kernel: [ 505.841836] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 505.943955] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 505.943967] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 506.148656] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 506.148678] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 506.148853] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:49 tou1120n03 kernel: [ 506.353282] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 506.558045] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 506.967749] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 506.967771] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 507.070040] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 507.173199] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 507.173222] iwlwifi 0000:00:14.3: Unhandled alg: 0x707
Jul 1 17:42:50 tou1120n03 kernel: [ 507.173230] iwlwifi 0000:00:14.3: Unhandled alg: 0x707:wq
Do you have any hints, how I could solve my issues? Do you think an upgrade to Ubuntu 19.04 could be a solution?
Thanks
My answer:
You should install and run the LTS hardware enablement stack when using Ubuntu LTS on a desktop/laptop system.
In this case, the issue with Intel wireless is a bug in the older kernel shipped with Ubuntu 18.04 LTS, and is fixed in later kernels.
Install the HWE kernel (and Xorg) and reboot into it.
sudo apt-get install --install-recommends linux-generic-hwe-18.04 xserver-xorg-hwe-18.04
View the full question and any other answers on Server Fault.
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.