I recently ran
sudo apt-get upgrade; sudo apt-get upgrade and after rebooting found that my wireless internet wasn't working anymore.
Here's what I'm running:
OS: Ubuntu 20.04 focal Kernel: x86_64 Linux 5.4.0-45-generic DE: Xfce
sudo lshw -C network:
*-network UNCLAIMED description: Network controller product: Wi-Fi 6 AX200 vendor: Intel Corporation physical id: 0 bus info: pci@0000:52:00.0 version: 1a width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix cap_list configuration: latency=0 resources: memory:ceb00000-ceb03fff
lspci to find my network controller:
52:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
lspci -nnk | grep 0280 -A3:
52:00.0 Network controller : Intel Corporation Wi-Fi 6 AX200 [8086:2723] (rev 1a) Subsystem: Intel Corporation Wi-Fi 6 AX200 [8086:0080] Kernel modules: iwlwifi
dmesg | grep iwlwifi:
[ 11.790522] Loading modules backported from iwlwifi [ 11.790522] iwlwifi-stack-public:master:8613:3ae69204 [ 11.817749] iwlwifi 0000:52:00.0: enabling device (0000 -> 0002) [ 12.217466] iwlwifi: probe of 0000:52:00.0 failed with error -110
- I downloaded the newest driver and copy-pasted it into
/lib/firmware. Turns out I already had it.
- I tried installing the backport:
sudo apt install backport-iwlwifi-dkms
- I tried installing a more complicated version of the backport:
git clone https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git cd backport-iwlwifi/ make defconfig-iwlwifi-public sudo make defconfig-iwlwifi-public sed -i 's/CPTCFG_IWLMVM_VENDOR_CMDS=y/# CPTCFG_IWLMVM_VENDOR_CMDS is not set/' .config make -j4 sudo make install sudo modprobe iwlwifi
So I still haven't solved it, and I don't want to keep poking around solo (since I don't know what I'm doing and don't want to wreck my system). I'm posting here via USB/Ethernet, which works just fine. What's confusing me is that I appear to have the right drivers installed into
/lib/firmware, but it still won't work. How do I fix this?