** Description changed: Ubuntu 12.04 on an Acer Aspire 1810t with an Intel 5100 AGN wifi card - (that performed flawlessly on Ubuntu 10.04). Wireless works as expected - at first, and connections can be configured with Network Manager without - any problem, including a WPA2-Personal home network, but after some time - (usually a number of hours, almost always after a suspend-to-ram or - hibernate) the wireless connection drops and is unable to reconnect. - After reboot, the wireless works at first, then the process repeats - itself. + (that performed flawlessly on Ubuntu 10.04) and an Atheros AR8131 + Gigabit Ethernet card. Wireless works as expected at first, and + connections can be configured with Network Manager without any problem, + including a WPA2-Personal home network, but after some time (usually a + number of hours, almost always after a suspend-to-ram or hibernate) the + wireless connection drops and is unable to reconnect. After reboot, the + wireless works at first, then the process repeats itself. Diagnostics: ** $ uname -a ** Linux ubuntubox 3.4.0-030400rc5-generic #201205011817 SMP Tue May 1 22:18:19 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux (note: the problem is the same when running the stock 3.2.0 kernel) ** $ dmesg ** (at the time the connection drops) [54671.300096] wlan0: authenticate with 00:24:7b:6d:32:62 (try 1) [54671.301874] wlan0: authenticated [54671.304312] wlan0: associate with 00:24:7b:6d:32:62 (try 1) [54671.308760] wlan0: RX ReassocResp from 00:24:7b:6d:32:62 (capab=0x411 status=0 aid=3) [54671.308766] wlan0: associated [54681.808039] wlan0: no IPv6 routers present [54692.009142] wlan0: deauthenticating from 00:24:7b:6d:32:62 by local choice (reason=3) ** $ cat /etc/network/interfaces ** auto lo iface lo inet loopback ** $ sudo rfkill list all ** 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no 7: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no 8: acer-bluetooth: Bluetooth Soft blocked: yes Hard blocked: no What I've Tried so far ----- * cannot connect to Open APs or WPA2 APs - when the wifi stops working, I cannot connect to any access points, even Open ones. * once the network problems start, plugging in a USB WiFi adapter w/ Atheros chipset results in the same problem with both cards. This USB device is known to work with Ubuntu "out of the box", suggesting it is not an iwlwifi driver problem. * disabling "N" mode in iwlifi does not work: "options iwlwifi 11n_disable=1" in /etc/modprobe.d/disable11n.conf * no option to use ndiswrapper for this wifi card (which is probably a good thing!) * unloading iwlwifi before suspend does not work: adding 'SUSPEND_MODULES="$SUSPEND_MODULES iwlwifi"' in /etc/pm/config.d/unload_modules * switching to kernel 2.6.39 (with iwlagn driver), 3.3.0, 3.4.0rc5 does not work * removing the acer_wmi module (sudo rmmod acer_wmi) does not work, and disables bluetooth * "sudo /etc/init.d/networking restart" does not work * "sudo stop network-manager && sudo start network-manager" does not work * "sudo rmmod iwlwifi && sudo modprobe iwlwifi" does not work * deleting the connection in Network Manager and recreating it from scratch does not work * leaving the laptop on without suspending, hibernating or rebooting results in the wireless eventually disconnecting and being unable to reconnect. - WORKAROUND: Reloading the ethernet driver fixes all the networking - problems for both ethernet and wifi: + WORKAROUND: Unusually high numbers of packets on the eth0 interface + suggest it is the problem. Reloading the ethernet driver fixes all the + networking problems for both ethernet and wifi: $ sudo rmmod atl1c $ sudo modprobe atl1c - I've edited /etc/pm/config.d/unload_modules and added + Editing /etc/pm/config.d/unload_modules and adding SUSPEND_MODULES="$SUSPEND_MODULES atl1c" + + fixes the problem with eth0 crashing networking after resume. --- ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: linux-meta Tags: precise precise Uname: Linux 3.4.0-030400rc6-generic x86_64 UnreportableReason: The running kernel is not an Ubuntu kernel UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND - /dev/snd/controlC0: tajore 1941 F.... pulseaudio + /dev/snd/controlC0: user 1941 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xd4500000 irq 45' Mixer name : 'Intel Cantiga HDMI' Components : 'HDA:10ec0269,1025029b,00100004 HDA:80862802,80860101,00100000' Controls : 28 Simple ctrls : 12 DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=eef198b5-6e0c-45a8-ac0b-cfd32f42e5b3 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: Acer Aspire 1810T Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=4bdab93a-334c-4096-aa76-2b2c3db05118 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 RelatedPackageVersions: linux-restricted-modules-3.2.0-24-generic N/A linux-backports-modules-3.2.0-24-generic N/A linux-firmware 1.79 SourcePackage: linux Tags: precise precise Uname: Linux 3.2.0-24-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo dmi.bios.date: 09/24/2009 dmi.bios.vendor: INSYDE dmi.bios.version: v1.3303 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Base Board Product Name dmi.board.vendor: Acer dmi.board.version: Base Board Version dmi.chassis.type: 1 dmi.chassis.vendor: Chassis Manufacturer dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnINSYDE:bvrv1.3303:bd09/24/2009:svnAcer:pnAspire1810T:pvrv1.3303:rvnAcer:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion: dmi.product.name: Aspire 1810T dmi.product.version: v1.3303 dmi.sys.vendor: Acer
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/996205 Title: Networking stops working after resume in 12.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/996205/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
