I’m having trouble with my wireless adapter lately. That is: sometimes when I turn off and on my laptop (Aspire A515-52G-75QD), the wireless adapter just disappears and there’s no way to turn it on or off (bluetooth works, wifi does not). The only way I found to bring it back to life has been to reset the UEFI settings. Do you have a similar issue? How to solve it?
Here’s some info about my system.
Linux Acer 5.8.11-1-MANJARO #1 SMP PREEMPT Wed Sep 23 14:35:40 UTC 2020 x86_64 GNU/Linux`
lspci -knn | grep Net -A3
00:14.3 Network controller : Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:9df0] (rev 30) Subsystem: Intel Corporation Device [8086:0034] Kernel driver in use: iwlwifi Kernel modules: iwlwifi
sudo rfkill list
0: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no
There are errors in the kernel log:
sudo dmesg -k -l err
[ 578.243474] pcieport 0000:00:1d.0: AER: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Transmitter ID) [ 578.243482] pcieport 0000:00:1d.0: AER: device [8086:9db0] error status/mask=00001000/00002000 [ 578.243487] pcieport 0000:00:1d.0: AER:  Timeout
lspci -knn | grep 9db0 -A3
00:1d.0 PCI bridge : Intel Corporation Cannon Point-LP PCI Express Root Port #9 [8086:9db0] (rev f0) Kernel driver in use: pcieport