I have a 64 bit processor and I have had this problem for a while.
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seidos <email address hidden> wrote:

according to this forum thread: http://ubuntuforums.org/showthread.php?t=1635892&page=2 the problem doesn't occur in x64 version. If you have a 64bit processor (intel or amd) then you should try the x64 version of ubuntu. i would be curious to see how many individuals have this chipset on systems with x86 processors. -- You received this bug notification because you are a direct subscriber of the bug. https://bugs.launchpad.net/bugs/687692 Title: Realtek 8191SEvB wireless card drops connections and can't reconnect without reboot Status in “linux” package in Ubuntu: Confirmed Bug description: I just purchased a Thinkpad 410s which for the most part Ubuntu works with fantastically out of the box (suspend and hibernate both work, 3D works, sound works). But the wifi occasionally gets disconnected, and when that happens it becomes impossible to reconnect without a reboot -- network manager will ask for the key as if it had been rejected, and then if I click ok it will try for awhile and eventually say I'm disconnected. I primarily have seen this when connecting to a WPA protected network, but I believe it's also happened on an unprotected network (where it doesn't ask for a key obviously but still can never reconnect). I played with toggling networking/wireless in the network manager context menu but it didn't have any effect on whether I could reconnect. The laptop also has a physical switch for turning the wireless on and off, but it made no difference either. Here's the identifying snippet from lspci for my card: 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10) ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: No Reproducible: No ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: prophet 1650 F.... pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfc620000 irq 47' Mixer name	: 'Intel IbexPeak HDMI' Components	: 'HDA:14f15069,17aa21a4,00100302 HDA:80862804,17aa21b5,00100000' Controls : 14 Simple ctrls : 6 Card29.Amixer.info: Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6UHT31WW-1.12' Mixer name	: 'ThinkPad EC 6UHT31WW-1.12' Components	: '' Controls : 1 Simple ctrls : 1 Card29.Amixer.values: Simple mixer control 'Console',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [off] Date: Thu Dec 9 00:28:52 2010 Frequency: Once a day. HibernationDevice: RESUME=UUID=e491809d-03d4-4bdc-871d-c76076529699 InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007) MachineType: LENOVO 2901CTO ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=cff85db2-8aa7-463b-b36f-378cad3ecc02 ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_US.utf8 SHELL=bash RelatedPackageVersions: linux-firmware 1.38 SourcePackage: linux dmi.bios.date: 10/27/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6UET61WW (1.41 ) dmi.board.name: 2901CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6UET61WW(1.41):bd10/27/2010:svnLENOVO:pn2901CTO:pvrThinkPadT410s:rvnLENOVO:rn2901CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 2901CTO dmi.product.version: ThinkPad T410s dmi.sys.vendor: LENOVO To unsubscribe from this bug, go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/687692/+subscribe