Bug 193751

Summary: acer-wmi module forces wifi rfkill hard block
Product: Drivers Reporter: Samuel Sieb (samuel-kbugs)
Component: Platform_x86Assignee: drivers_platform_x86 (drivers_platform_x86)
Status: RESOLVED CODE_FIX    
Severity: normal CC: jlee
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 4.9.3 Subsystem:
Regression: No Bisected commit-id:
Attachments: acpidump output

Description Samuel Sieb 2017-01-31 21:54:59 UTC
Created attachment 253751 [details]
acpidump output

When the acer-wmi module is loaded, the wifi interface is hard blocked.  I have attached the acpidump output.

0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: yes

From the journal, including dmesg output:
Jan 31 13:33:38 hostname kernel: acer_wmi: Acer Laptop ACPI-WMI Extras
Jan 31 13:33:38 hostname kernel: acer_wmi: Function bitmap for Communication Button: 0x800
Jan 31 13:33:38 hostname kernel: acer_wmi: Enabling Launch Manager failed: 0xe2 - 0x0
Jan 31 13:33:38 hostname kernel: input: Acer WMI hotkeys as /devices/virtual/input/input11
Jan 31 13:33:38 hostname kernel: input: Acer BMA150 accelerometer as /devices/virtual/input/input12
Jan 31 13:33:38 hostname systemd[1]: Starting Load/Save RF Kill Switch Status...
Jan 31 13:33:38 hostname systemd[1]: Started Load/Save RF Kill Switch Status.
Jan 31 13:33:38 hostname systemd-logind[755]: Watching system buttons on /dev/input/event10 (Acer WMI hotkeys)
Jan 31 13:33:38 hostname gnome-shell[1520]: Could not open device /dev/input/event11: GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Operation not permitted
Jan 31 13:33:41 hostname wpa_supplicant[840]: rfkill: WLAN hard blocked
Jan 31 13:33:41 hostname NetworkManager[724]: <info>  [1485898421.1818] manager: WiFi now disabled by radio killswitch
Jan 31 13:33:41 hostname NetworkManager[724]: <info>  [1485898421.1820] device (wlp2s0): state change: disconnected -> unavailable (reason 'none') [30 20 0]
Comment 1 Samuel Sieb 2017-01-31 21:58:14 UTC
I forgot to include the laptop info:
DMI: Acer Aspire ES1-522/BELLEMERE_BE, BIOS V1.07 04/18/2016
Comment 2 Lee, Chun-Yi 2017-02-07 09:05:43 UTC
Hi Samuel, 

Could you please help to test Chris Chiu's patch to check if this issue is fixed on your machine?

[PATCH v2] acer-wmi: Inform firmware that RF Button Driver is active
http://www.spinics.net/lists/platform-driver-x86/msg10465.html

Thanks a lot!
Comment 3 Samuel Sieb 2020-01-18 00:35:02 UTC
Totally forgot about this.  But since I've recently reinstalled all the laptops and didn't run into this, I consider it fixed.