RF devices disabled after returning from suspend to disk

RF devices disabled after returning from suspend to disk

[Neil Watson]

Hi,

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.


All feedback will be appreciated.


Regards,
Neil

Re: RF devices disabled after returning from suspend to disk

[Matthew Garrett]

A description of the hardware would be helpful.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

Re: RF devices disabled after returning from suspend to disk

[Neil Watson]

----- Original Message ----- 
From: "Matthew Garrett" <mjg59@srcf.ucam.org>
To: "Neil Watson" <nowatson@gmail.com>
Cc: <linux-acpi@vger.kernel.org>
Sent: Friday, February 05, 2010 9:29 PM
Subject: Re: RF devices disabled after returning from suspend to disk

>
>A description of the hardware would be helpful.
>


It 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)


computer
  net_0a_b4_81_ff_97_53
  computer_logicaldev_input_4
  acpi_CPU0
  acpi_CPU1
  computer_alsa_timer
  computer_alsa_sequencer
  net_computer_loopback
  computer_logicaldev_input_3
  computer_backlight
  computer_logicaldev_input_2
  computer_logicaldev_input_1
  computer_power_supply_battery_BAT0
  computer_logicaldev_input_0
  computer_power_supply_ac_adapter_ACAD
  computer_logicaldev_input
  pnp_PNP0c02_0
  pnp_PNP0f13
  pnp_PNP0303
  pnp_PNP0b00
  pnp_PNP0c02
  pnp_PNP0c04
  pnp_PNP0103
  pnp_INT0800
  pnp_PNP0200
  pnp_PNP0a08
  platform_vesafb_0
  platform_serial8250
  platform_regulatory_0
  platform_pcspkr
  platform_iTCO_wdt
  platform_i8042
    platform_i8042_i8042_AUX3_port
      platform_i8042_i8042_AUX3_port_logicaldev_input_0
      platform_i8042_i8042_AUX3_port_logicaldev_input
    platform_i8042_i8042_AUX2_port
    platform_i8042_i8042_AUX1_port
    platform_i8042_i8042_AUX0_port
    platform_i8042_i8042_KBD_port
      platform_i8042_i8042_KBD_port_logicaldev_input
  platform_Fixed_MDIO_bus_0
  pci_8086_2930
  pci_8086_2929
    pci_8086_2929_scsi_host_4
    pci_8086_2929_scsi_host_3
    pci_8086_2929_scsi_host_2
    pci_8086_2929_scsi_host_1
      pci_8086_2929_scsi_host_1_scsi_host
      pci_8086_2929_scsi_host_1_scsi_device_lun0
        storage_model_BDDVDRW_CT10N
          volume_label_VCD7232
        pci_8086_2929_scsi_host_1_scsi_device_lun0_scsi_generic
    pci_8086_2929_scsi_host_0
      pci_8086_2929_scsi_host_0_scsi_host
      pci_8086_2929_scsi_host_0_scsi_device_lun0
        storage_serial_ST9160310AS_5SV4EW92
          volume_part4_size_49351680
          volume_part1_size_1024
          volume_uuid_UDFo6n_Q2v1_Y2lq_WgD2_fh0Y_Z7oz_neIFJc
          volume_uuid_fb8d5fd8_8cc9_45a1_92d3_1cd7d599fd90
          volume_uuid_CCED_990E
          volume_uuid_A000B2F200B2CF12
        pci_8086_2929_scsi_host_0_scsi_device_lun0_scsi_generic
    pci_8086_2929_scsi_host
      pci_8086_2929_scsi_host_scsi_host
      pci_8086_2929_scsi_host_scsi_device_lun0
        storage_serial_ST9500420AS_5VJ19E6S
          volume_uuid_DUP2Fm_Zu65_s0kQ_RrAA_3zE4_hJ1C_ilEgrY
          volume_uuid_92bb4a0b_281d_4f26_a685_6d818a818848
          volume_uuid_7E704D85704D455D
        pci_8086_2929_scsi_host_scsi_device_lun0_scsi_generic
  pci_8086_2919
  pci_8086_2448
  pci_8086_293a
    usb_device_1d6b_2_0000_00_1d_7
      usb_device_1d6b_2_0000_00_1d_7_if0
  pci_8086_2936
    usb_device_1d6b_1_0000_00_1d_2
      usb_device_45e_53_noserial
        usb_device_45e_53_noserial_if0
          usb_device_45e_53_noserial_if0_logicaldev_input
      usb_device_1d6b_1_0000_00_1d_2_if0
  pci_8086_2935
    usb_device_1d6b_1_0000_00_1d_1
      usb_device_1d6b_1_0000_00_1d_1_if0
  pci_8086_2934
    usb_device_1d6b_1_0000_00_1d_0
      usb_device_1d6b_1_0000_00_1d_0_if0
  pci_8086_294a
    pci_10ec_8168
      net_00_14_0b_66_67_60
  pci_8086_2942
    pci_168c_2a
      net_00_25_d3_99_bf_56
      leds_ath9k_phy0_tx
      leds_ath9k_phy0_rx
      leds_ath9k_phy0_radio
      leds_ath9k_phy0_assoc
      pci_168c_2a_rfkill_phy0_wlan
  pci_8086_2940
  pci_8086_293e
    pci_8086_293e_sound_card_0
      pci_8086_293e_sound_card_0_alsa_capture_2
      pci_8086_293e_sound_card_0_alsa_playback_1
      pci_8086_293e_sound_card_0_alsa_playback_0
      pci_8086_293e_sound_card_0_alsa_capture_0
      pci_8086_293e_sound_card_0_alsa_hw_specific_0
      pci_8086_293e_sound_card_0_alsa_control__1
    pci_8086_293e_logicaldev_input
  pci_8086_293c
    usb_device_1d6b_2_0000_00_1a_7
      usb_device_1d6b_2_0000_00_1a_7_if0
  pci_8086_2939
    usb_device_1d6b_1_0000_00_1a_2
      usb_device_a12_1_noserial
        usb_device_a12_1_noserial_if1
        usb_device_a12_1_noserial_if0
          usb_device_a12_1_noserial_if0_bluetooth_hci_0
            usb_device_a12_1_noserial_if0_bluetooth_hci_0_rfkill_hci0_bluetooth
      usb_device_1d6b_1_0000_00_1a_2_if0
  pci_8086_2938
    usb_device_1d6b_1_0000_00_1a_1
      usb_device_1d6b_1_0000_00_1a_1_if0
  pci_8086_2937
    usb_device_1d6b_1_0000_00_1a_0
      usb_device_1d6b_1_0000_00_1a_0_if0
  pci_8086_2a41
    pci_10de_652
  pci_8086_2a40