Public bug reported:
Dell XPS m1330 with Intel Wireless ABG
uname -a: Linux ethan-XPS-M1330 3.2.0-60-lowlatency-pae #62-Ubuntu SMP
PREEMPT Tue Feb 25 00:32:18 UTC 2014 i686 i686 i386 GNU/Linux
what I expect: wireless connectivity to be reliable and consistent
what happens instead: wireless connection cuts out, recovers, re-establishes
connection. sometimes (rare) requires disabling / re-enabling via hardware or
software switch. sometimes (more rare) hardware fails completely until reboot
(removing and re-inserting module fails -- hardware disappears to the system
until reboot). This problem will occur without a suspend / resume cycle.
This problem appeared recently, within the last month or two months of
kernel updates. I think the next step in debugging would be to test
reliability against previous kernel versions.
some relevant dmesg:
keyboard: can't emulate rawmode for keycode 240
iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of
900), is 0xffffffff, s/b 0xf802020
iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
iwl3945 0000:0c:00.0: MAC is in deep sleep!. CSR_GP_CNTRL = 0xFFFFFFFF
iwl3945 0000:0c:00.0: bad EEPROM signature,EEPROM_GP=0x00000007
iwl3945 0000:0c:00.0: EEPROM not found, EEPROM_GP=0xffffffff
iwl3945 0000:0c:00.0: Unable to init EEPROM
iwl3945 0000:0c:00.0: PCI INT A disabled
iwl3945: probe of 0000:0c:00.0 failed with error -2
lspci:
0c:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan]
Network Connection (rev 02)
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-60-lowlatency-pae 3.2.0-60.62
ProcVersionSignature: Ubuntu 3.2.0-60.62-lowlatency-pae 3.2.55
Uname: Linux 3.2.0-60-lowlatency-pae i686
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
Date: Sun Mar 23 20:09:07 2014
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MarkForUpload: True
SourcePackage: linux-lowlatency
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-lowlatency (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise running-unity
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https://bugs.launchpad.net/bugs/1296504
Title:
iwl3945 wireless connection becomes unreliable
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