** Tags added: bios-outdated-a34
** Tags added: regression-potential
** Tags added: maverick
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Title:
14e4:432b Regression in wireless
marking this confirmed. it affects multiple users, and i am replicating
this behavior with the Broadcom Corporation BCM4322 802.11a/b/g/n
Wireless LAN Controller [14e4:432b] (rev 01) on the mainline kernel
daily build.
nathwill@loki-1545:~$ uname -a
Linux loki-1545 3.5.0-999-generic #201207190406
noting also that i do not see the latency when disabling power-saving
measures via as described in OP.
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Title:
14e4:432b Regression in wireless
@Ryan,
Can you provide some information on the status of the patch with regards
to getting it merged upstream? Has it been sent upstream, what sort of
feedback has it received, is it getting applied to a subsystem
maintainer's tree, etc?
People affected by this bug are probably wondering why
The bug was a regression in Maverick relative to Lucid, but it has been
present in every release since Maverick, so at this point it's just a
bug that has been around for at least 2 years.
It may not be practical to fix the bug in the bcmwl drivers, but the
workaround is only a two-line patch
@Bart,
Were you able to test the mainline kernel as suggested in comment #4?
The latest mainline kernel can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/
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@Joseph Salisbury:
I tried but with no success.
I installed the mainline kernel and accompanying headers but the broadcom
driver won't load without the bcmwl-kernel-source (re-)installed but that
doesn't work because:
Module build for the currently running kernel was skipped since the
kernel
@Joseph Salisbury:
wrt mainline kernel, turned out I missed the one of the kernel header packages.
retrying I get:
bheinsius@bheinsius-Latitude-E6400:~$ sudo dpkg -i
bcmwl-kernel-source_5.100.82.38+bdcom-0ubuntu6.1_i386.deb
...
Building initial module for 3.4.0-030400-generic-pae
ERROR (dkms
@Bart
You mention this is a regression.l Can you test the latest v3.0 kernel
to confirm this bug does not exist there? The v3.0 kernel can be
downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.0.31-oneiric/
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** Tags added: kernel-da-key
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Title:
14e4:432b Regression in wireless performance when on battery power
To manage notifications about this bug
@Joseph Salisbury:
not sure this is a regression, the original bug report was
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/651008 which expired
because it was reported on maverick for which support had expired. the
problem still existed in 12.04, Christopher M. Penalver (penalvch) asked
jbeezo, please do not toggle this bug without clearly documenting the
rationale for the change.
** Summary changed:
- Regression in wireless performance when on battery power (broadcom)
+ 14e4:432b Regression in wireless performance when on battery power
** Package changed: acpi (Ubuntu) =
penalvch, very sorry. Just trying to bring more eyes to the problem.
I just noticed that it's already a known issue: http://wiki.debian.org/wl
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