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  #1  
Old 13th February 2010, 05:46 PM
nowatson Offline
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Join Date: Mar 2006
Posts: 8
linuxfedorafirefox
RF devices disabled after returning from suspend to disk

After returning from suspend to disk, RF devices (wlan and bluetooth)
are disabled. Running lspci indicates that no wireless network device
is available, and no drivers are loaded. Furthermore, the LED on the
front of the laptop remains off - this is always on when RF devices
are available. There is an Fn-F1 function key to toggle wireless, but
this does not function to either enable or disable.

Rebooting the system does not re-enable the RF devices, and there is
no option in the BIOS. The only workaround I have at present is to
boot into windows vista and use the Fn-F1 function key. This pops up
a small hotkey utility with the option to disable/enable the wi-fi and
bluetooth (independently). Upon confirming the dialog, the RF device
light immediately illuminates. Rebooting into fedora and wireless
devices are working once again.

I am running kernel 2.6.31.12-174.2.3.fc12.x86_64, with the latest
compat-wireless drivers. I can provide much more debug information
(dmidecode, acpidump, boot logs, lspci etc...), I am just unable to
determine what is relevant

# rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

There is no hardware RF switch on this laptop. Applying the software
RF block (rfkill block all) does disable the wireless devices, however
the LED remains lit and upon rebooting these are re enabled. There
there appears to be some other RF kill mechanism that is being enabled
during suspend to disk and that is causing my issue.

The hardware is a Novatech laptop, model X65- a rebranded FIC PMN70D -
http://www.fic.com.tw/product/pmn70d.aspx

# lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory
Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express
Graphics Port (rev07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #2 (rev03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio
Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port
1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port
2 (rev 03)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port
6 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI
Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI
Controller #1 (rev03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev
03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller
(rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev
03)
01:00.0 VGA compatible controller: nVidia Corporation Device 0652 (rev a1)
04:00.0 Network controller: Atheros Communications Inc. AR928X Wireless
Network Adapter (PCIExpress) (rev 01)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B
PCI Express Gigabit Ethernet controller (rev 03)
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  #2  
Old 23rd February 2010, 10:06 PM
nowatson Offline
Registered User
 
Join Date: Mar 2006
Posts: 8
linuxfedorafirefox
On a related note, I have managed to trap the Fn-F1 keypress in linux - the button that should enable/disable RF devices, and assign it to XF86WLAN, using the command

# setkeycodes 63 238

Narrowed that down from the kernel messages

kernel: atkbd.c: Unknown key released (translated set 2, code 0x63 on isa0060/serio0).
kernel: atkbd.c: Use 'setkeycodes 63 <keycode>' to make it known.
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