[Bug 890454] New: brcmsmac: no power savings
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c0 Summary: brcmsmac: no power savings Classification: openSUSE Product: openSUSE Factory Version: 201407* Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: jnelson-suse@jamponi.net QAContact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 I have a laptop with a built-in wireless broadcom BCM4313. This device consumes a *lot* of power and (usually, but not always) works. When the module is loaded, powertop reports that it uses between 4 and 6 *Watts*. I have Four other wireless devices here, and they consume far less: ZD1211RW - 600-1300 mW AR5523 - 100-200 mW Rx200 - 100-200 mW rtl8192cu - 100-200 mW This turns my battery life down and (helps to) make the laptop run hot. Reproducible: Always Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c1 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jeffm@suse.com --- Comment #1 from Jeff Mahoney <jeffm@suse.com> 2014-08-05 14:45:53 EDT --- This should really be reported upstream. We're not carrying any patches for this driver. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c2 --- Comment #2 from Jon Nelson <jnelson-suse@jamponi.net> 2014-08-06 03:04:07 UTC --- Reported upstream: https://bugzilla.kernel.org/show_bug.cgi?id=81721 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://bugzilla.kernel.org | |/show_bug.cgi?id=81721 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel-maintainers@forge.pr |jslaby@suse.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c3 --- Comment #3 from Luis Rodriguez <lurodriguez@suse.com> 2014-08-09 15:13:55 UTC --- (In reply to comment #2)
Reported upstream: https://bugzilla.kernel.org/show_bug.cgi?id=81721
To help your report further you might want to consider running the latest development branch for 802.11 development: wireless-testing. If you don't want to compile a full kernel you can also try the latest Linux backports tarball based on linux-next, the latest of which as of today is: http://www.kernel.org/pub/linux/kernel/projects/backports/2014/07/25/backpor... Using this tarball on OpenSUSE factory requires one small patch which I'll provide next and submit upstream for inclusion. I also recommend and encourage you to also report your issues on the linux-wireless mailing list, as well as your results for power consumption for other drivers, that's information I think others might find very useful. Putting a reference to your bug report would help. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c4 --- Comment #4 from Luis Rodriguez <lurodriguez@suse.com> 2014-08-09 15:15:39 UTC --- Created an attachment (id=601780) --> (http://bugzilla.novell.com/attachment.cgi?id=601780) Use -ltinfo for menuconfig Running make menuconfig will fail to compile unless -ltinfo is used for mconf target. This should be applied on top of the latest Linux backports tarball: http://www.kernel.org/pub/linux/kernel/projects/backports/2014/07/25/backpor... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c5 --- Comment #5 from Jon Nelson <jnelson-suse@jamponi.net> 2014-08-10 16:06:32 UTC --- I'm not sure where I should comment (here, the kernel bugzilla, or both), but I gave the backports a try: admittedly, it's not a perfect test, but now brcmsmac seems to consume much less: - 350mW to 3900mW This is with kernel 3.16.0-rc7-2-desktop However, that's still 3 to 30x what the rtl8129cu is using. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c6 --- Comment #6 from Luis Rodriguez <lurodriguez@suse.com> 2014-08-10 16:32:13 UTC --- (In reply to comment #5)
I'm not sure where I should comment (here, the kernel bugzilla, or both),
You should provide this information on the kernel.org bugzila and also send that information to linux-wireless mailing list.
but I gave the backports a try:
admittedly, it's not a perfect test, but now brcmsmac seems to consume much less:
- 350mW to 3900mW
This is with kernel 3.16.0-rc7-2-desktop
What you want to say is you used 3.16.0-rc7-2-desktop with backports-20140725.
However, that's still 3 to 30x what the rtl8129cu is using.
Seems Broadcom has much work to do. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=890454 https://bugzilla.novell.com/show_bug.cgi?id=890454#c7 Jiri Slaby <jslaby@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |UPSTREAM --- Comment #7 from Jiri Slaby <jslaby@suse.com> 2014-08-18 12:34:47 UTC --- Sorry, I don't think there is anything we can do here :/. Upstream should take care. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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