Bug#780920: firmware-iwlwifi: iwlwifi-7260-8.ucode causes frequent network disconnections problems
Package: firmware-iwlwifi
Version: 0.43
Severity: important
Dear Maintainer,
I use wifi with my Lenovo X240 with the Intel network controller 7260. Just
below, the lspci command output :
03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
Subsystem: Intel Corporation Wireless-N 7260
Flags: bus master, fast devsel, latency 0, IRQ 63
Memory at e0400000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [40] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Device Serial Number 7c-7a-91-ff-ff-05-6b-e4
Capabilities: [14c] Latency Tolerance Reporting
Capabilities: [154] Vendor Specific Information: ID=cafe Rev=1 Len=014
<?>
Kernel driver in use: iwlwifi
I am running Debian Jessie x86_64. I am connecting to my wireless ADSL router
(Technicolor TG789vn v3) with this options (iwconfig output) :
wlan0 IEEE 802.11bgn ESSID:"ManaBOX8A99EB"
Mode:Managed Frequency:2.412 GHz Access Point: 9C:97:26:8A:99:EB
Bit Rate=1 Mb/s Tx-Power=22 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:on
Link Quality=70/70 Signal level=-34 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:71 Missed beacon:0
The Bit Rate alternate between 1 and 70 Mb/s.
My issue : frequent disconnections (every 20/30mn) with complete network
controller loss. I disable and enable wifi controller with the hotkey, and it
works again (for 20/40mn).
This is an extract of my network manager log (/var/log/daemon.log) of this
issue :
Mar 17 10:11:00 x240 wpa_supplicant[1145]: wlan0: CTRL-EVENT-DISCONNECTED
bssid=9c:97:26:8a:99:eb reason=4 locally_generated=1
Mar 17 10:11:00 x240 NetworkManager[748]: <warn> Connection disconnected
(reason -4)
Mar 17 10:11:00 x240 wpa_supplicant[1145]: wlan0: CTRL-EVENT-REGDOM-CHANGE
init=CORE type=WORLD
Mar 17 10:11:00 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: completed -> disconnected
Mar 17 10:11:00 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: disconnected -> scanning
Mar 17 10:11:01 x240 wpa_supplicant[1145]: wlan0: SME: Trying to authenticate
with 9c:97:26:8a:99:eb (SSID='ManaBOX8A99EB' freq=2437 MHz)
Mar 17 10:11:01 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: scanning -> authenticating
Mar 17 10:11:01 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: authenticating -> disconnected
Mar 17 10:11:02 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: disconnected -> scanning
Mar 17 10:11:03 x240 wpa_supplicant[1145]: wlan0: SME: Trying to authenticate
with 9c:97:26:8a:99:eb (SSID='ManaBOX8A99EB' freq=2437 MHz)
Mar 17 10:11:03 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: scanning -> authenticating
Mar 17 10:11:03 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: authenticating -> disconnected
Mar 17 10:11:04 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: disconnected -> scanning
Mar 17 10:11:05 x240 wpa_supplicant[1145]: wlan0: SME: Trying to authenticate
with 9c:97:26:8a:99:eb (SSID='ManaBOX8A99EB' freq=2437 MHz)
Mar 17 10:11:05 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: scanning -> authenticating
Mar 17 10:11:05 x240 wpa_supplicant[1145]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED
id=0 ssid="ManaBOX8A99EB" auth_failures=1 duration=10 reason=CONN_FAILED
Mar 17 10:11:05 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: authenticating -> disconnected
Mar 17 10:11:10 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: disconnected -> scanning
Mar 17 10:11:15 x240 NetworkManager[748]: <warn> (wlan0): link timed out.
Mar 17 10:11:15 x240 NetworkManager[748]: <info> (wlan0): device state change:
activated -> failed (reason 'ssid-not-found') [100 120 53]
Mar 17 10:11:15 x240 NetworkManager[748]: <info> NetworkManager state is now
CONNECTED_LOCAL
Mar 17 10:11:15 x240 NetworkManager[748]: <info> NetworkManager state is now
DISCONNECTED
Mar 17 10:11:15 x240 NetworkManager[748]: <warn> Activation (wlan0) failed for
connection 'ManaBOX8A99EB'
Mar 17 10:11:15 x240 dbus[754]: [system] Activating via systemd: service
name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-
dispatcher.service'
Mar 17 10:11:15 x240 NetworkManager[748]: <info> (wlan0): device state change:
failed -> disconnected (reason 'none') [120 30 0]
Mar 17 10:11:15 x240 NetworkManager[748]: <info> (wlan0): deactivating device
(reason 'none') [0]
Mar 17 10:11:15 x240 dbus[754]: [system] Successfully activated service
'org.freedesktop.nm_dispatcher'
Mar 17 10:11:15 x240 nm-dispatcher: Dispatching action 'down' for wlan0
Mar 17 10:11:15 x240 NetworkManager[748]: <info> (wlan0): canceled DHCP
transaction, DHCP client pid 2123
Mar 17 10:11:15 x240 avahi-daemon[1008]: Withdrawing address record for
fe80::7e7a:91ff:fe05:6be4 on wlan0.
Mar 17 10:11:15 x240 avahi-daemon[1008]: Leaving mDNS multicast group on
interface wlan0.IPv6 with address fe80::7e7a:91ff:fe05:6be4.
Mar 17 10:11:15 x240 avahi-daemon[1008]: Interface wlan0.IPv6 no longer
relevant for mDNS.
Mar 17 10:11:15 x240 avahi-daemon[1008]: Withdrawing address record for
192.168.1.81 on wlan0.
Mar 17 10:11:15 x240 avahi-daemon[1008]: Leaving mDNS multicast group on
interface wlan0.IPv4 with address 192.168.1.81.
Mar 17 10:11:15 x240 avahi-daemon[1008]: Interface wlan0.IPv4 no longer
relevant for mDNS.
Mar 17 10:11:15 x240 NetworkManager[748]: <warn> Couldn't disconnect supplicant
interface: This interface is not connected.
Mar 17 10:11:15 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: scanning -> inactive
Mar 17 10:11:16 x240 NetworkManager[748]: <info> (wlan0): supplicant interface
state: inactive -> scanning
I found similar issues on the Ubuntu Launchpad, the #1349108
(https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349108) and #1293569
(https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1293569). So I
apply the "fix", I renamed the iwlwifi-7260-8.ucode to iwlwifi-7260-8.backup in
/lib/firmware.
This "fix" works for me.
Does there is a better solution ?
Thank you.
-- System Information:
Debian Release: 8.0
APT prefers testing-updates
APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
firmware-iwlwifi depends on no packages.
firmware-iwlwifi recommends no packages.
Versions of packages firmware-iwlwifi suggests:
ii initramfs-tools 0.119
-- no debconf information
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