I have problem with my Toshiba Satellite C850-D3K laptop with Ubuntu 16.04 installed and RTL8723AE wireless adapter. The thing is that CPU consumption may go up after a while (30 mins - 2 hours) by no reason. See image below:
$ cat /proc/interrupts CPU0 CPU1 0: 43 0 IO-APIC 2-edge timer 1: 8809 535 IO-APIC 1-edge i8042 8: 1 0 IO-APIC 8-edge rtc0 9: 50 81 IO-APIC 9-fasteoi acpi 12: 115818 18613 IO-APIC 12-edge i8042 16: 326 30 IO-APIC 16-fasteoi ehci_hcd:usb1 17: 14687 151826239 IO-APIC 17-fasteoi rtl_pci
I suppose that the problem is wifi driver, because when I execute
modprobe -r rtl8723ae rtl_wifi
CPU consumption goes back to normal (not taking into account that wifi is not working anymore)
I've tried installing driver from https://github.com/lwfinger/rtlwifi_new but it didn't solve the problem.
The only way to solve the problem for me is suspend and wake up laptop each time that the problem appears. That returns CPU consumption to normal, but quite annoying.
I would be really glad if someone could help me with that.