Christopher, no, I can't upgrade the BIOS; my wifi card its not Lenovo
branded, and I had to hack the whitelist in the BIOS to use the card at
all. In any case, this is an issue with the wifi card itself, so
unrelated to the system BIOS.
But the problem has not recurred with more recent kernel releases, so
closing as resolved.
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/1036427
Title:
8086:422b [Lenovo ThinkPad ThinkPad X201] unreliability with Centrino
Ultimate-N 6300 wireless connection, 802.11n
Status in “linux” package in Ubuntu:
Fix Released
Bug description:
My laptop has been experiencing occasional drops from the 802.11n
wireless with the current kernel. When this happens, the card cannot
see any ESSIDs and spews the error "Request scan called when driver
not ready." If I try to unload and reload the module, I get an
"unable to init EEPROM" error.
Kernel log snippet follows below. The modprobe -r/modprobe happens at
13:25:39. Rebooting clears the error:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1036427/+attachment/3768745/+files/kernel-log
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-9-generic 3.5.0-9.9
ProcVersionSignature: Ubuntu 3.5.0-9.9-generic 3.5.0
Uname: Linux 3.5.0-9-generic x86_64
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: vorlon 3454 F.... pulseaudio
/dev/snd/controlC0: vorlon 3454 F.... pulseaudio
Date: Mon Aug 13 15:38:19 2012
HibernationDevice: RESUME=UUID=f6ab3c43-61b4-4af7-bf03-fa3b147a1de0
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64
(20100816.1)
MachineType: LENOVO 3249CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-9-generic
root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.5.0-9-generic N/A
linux-backports-modules-3.5.0-9-generic N/A
linux-firmware 1.88
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-06-11 (63 days ago)
WifiSyslog:
dmi.bios.date: 08/23/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6QET52WW (1.22 )
dmi.board.name: 3249CTO
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:bvr6QET52WW(1.22):bd08/23/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3249CTO
dmi.product.version: ThinkPad X201
dmi.sys.vendor: LENOVO
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