[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
*** This bug is a duplicate of bug 991232 *** https://bugs.launchpad.net/bugs/991232 ** This bug has been marked a duplicate of bug 991232 Regression in wireless performance when on battery power (broadcom) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** This bug is no longer a duplicate of bug 991232 Regression in wireless performance when on battery power (broadcom) ** Summary changed: - Regression in wireless performance under Maverick when on battery power (broadcom) + 14e4:432b Regression in wireless performance under Maverick when on battery power -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: 14e4:432b Regression in wireless performance under Maverick when on battery power To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
problem still exist in 12.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
@penalvch: instructions to update bug with 12.04 debug information do not work. apport-collect -p linux 651008 gives: You are not the reporter of this problem report. It is much easier to mark a bug as a duplicate of another than to move your comments and attachments to a new bug. Subsequently, we recommend that you file a new bug report using apport-bug and make a comment in this bug about the one you file. Do you really want to proceed? selecting Yes gives: No packages found matching linux. ERROR: hook /usr/share/apport/general-hooks/ubuntu.py crashed: Traceback (most recent call last): File /usr/lib/python2.7/dist-packages/apport/report.py, line 718, in add_hooks_info symb['add_info'](self, ui) File /usr/share/apport/general-hooks/ubuntu.py, line 45, in add_info match_error_messages(report) File /usr/share/apport/general-hooks/ubuntu.py, line 129, in match_error_messages if report['ProblemType'] == 'Package': File /usr/lib/python2.7/UserDict.py, line 23, in __getitem__ raise KeyError(key) KeyError: 'ProblemType' Traceback (most recent call last): File /usr/share/apport/apport-gtk, line 499, in lambda GLib.idle_add(lambda: self.collect_info(on_finished=self.ui_update_view)) File /usr/lib/python2.7/dist-packages/apport/ui.py, line 867, in collect_info icthread.exc_raise() File /usr/lib/python2.7/dist-packages/apport/REThread.py, line 34, in run self._retval = self.__target(*self.__args, **self.__kwargs) File /usr/lib/python2.7/dist-packages/apport/ui.py, line 111, in thread_collect_info if report['ProblemType'] == 'Crash' and \ File /usr/lib/python2.7/UserDict.py, line 23, in __getitem__ raise KeyError(key) KeyError: 'ProblemType' can you provide other instructions? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Bart Heinsius, please file a new report. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
done, see https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/991232 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Declined for Maverick as it's EOL as of April 2012. ** Changed in: linux (Ubuntu Maverick) Status: Confirmed = Won't Fix ** Changed in: bcmwl (Ubuntu Maverick) Status: Confirmed = Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Iain Lane, thank you for reporting this and helping make Ubuntu better. Maverick reached EOL on April 2012. Please see this document for currently supported Ubuntu releases: https://wiki.ubuntu.com/Releases We were wondering if this is still an issue on a supported release? If so, can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ . If it remains an issue in a supported release, could you run the following command from a Terminal (Applications-Accessories-Terminal). It will automatically gather and attach updated debug information to this report. apport-collect -p linux replace-with-bug-number Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream- testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results. Thanks in advance. ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete ** Tags added: needs-upstream-testing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
The attachment pmutils-fix-bcmwl-battery-slowdown.patch of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-sponsors please also unsubscribe the team from this bug report. [This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Here's a better workaround: Download the patch that I am attaching to this comment. Then copy the wireless power script into /etc, and apply my patch to it: $ sudo cp /usr/lib/pm-utils/power.d/wireless /etc/pm/power.d/wireless $ sudo patch /etc/pm/power.d/wireless PATCHFILE Putting a script in /etc/pm will override the script with the same name in /usr/lib/pm-utils. The patch adds a special case for the wl driver that prevents the activation of power saving. Someone could add this patch to the source package and build a pm-utils deb with the fixed wireless script in it if they wanted to. ** Patch added: pmutils-fix-bcmwl-battery-slowdown.patch https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/651008/+attachment/2615453/+files/pmutils-fix-bcmwl-battery-slowdown.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Changed in: linux (Ubuntu Maverick) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
sudo iwconfig eth0 power off fixed the problem on my Macbook Air 3,2 (running Natty and kernel 2.6.38-8-generic). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/651008/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Forgot to mention: I face this problem on a desktop-PC, not on a laptop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same problem with RaLink RT2500 802.11g (rev 01) under Ubuntu 10.10. iwconfig wlan0 power off also works for me! I didn't test with natty yet. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Problem occurred again about 2 hours later. Logging off and on again fixes the problem for a while. Now trying the workaround from the bug description. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Changed in: linux (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Turns out that the workaround (sudo touch /etc/pm/power.d/wireless) I described in the bug description will not be sufficient for all hardware. It just keeps the script in /usr/lib/pm-utils/power.d/wireless from switching to power save mode. At least with some hardware there are other things that can switch power save mode on. Stefan Rehm's workaround in comment #9 will (perhaps) work in this case. Doing configuration in /usr is however probably not the best solution. Another workaround is to put a small script into the file in /etc/pm/power.d/wireless: gksu gedit /etc/pm/power.d/wireless in gedit write and save this: #!/bin/sh /sbin/iwconfig wlan0 power off set the file to executable with this: sudo chmod +x /etc/pm/power.d/wireless This workaround will however only work if sudo iwconfig wlan0 power off works for your driver. Try this out before. Your wlan might be called something other than wlan0 or you might need another command than iwconfig. Also, just as with Stefan Rehm's workaround, I am not sure that there might not be gaps between were something else switches power save on and this script gets called and switches it back off. In summary: One of the above should probably work for you, but no workaround looks all that perfect. Stefan Rehm's workaround will work for the greatest number of cases. ** Description changed: [WORKAROUND] - Disable the power saving measures implemented by /usr/lib/pm-utils/power.d/wireless. + (This will not fix all problems for all: see comment 24.) + Disable the power saving measures implemented by /usr/lib/pm-utils/power.d/wireless. To disable them do: sudo touch /etc/pm/power.d/wireless - You now should have an empty file named wireless without the executable bit set in /etc/pm/power.d. + You now should have an empty file named wireless without the executable bit set in /etc/pm/power.d. Check with: ls -lh /etc/pm/power.d/ You should see a file like this: -rw-r--r-- 1 root root 0 2010-12-31 18:53 wireless Reference: man pm-powersave [ORIGINAL REPORT] Since upgrading to maverick, wireless performance on my Macbook Pro 7.1 has been terrible. It was fine under lucid. Pinging the router: 13 packets transmitted, 12 received, 7% packet loss, time 12024ms rtt min/avg/max/mdev = 52.867/574.644/1203.660/441.552 ms, pipe 2 iperf to another machine connected via ethernet over power (typical latency from this machine is ~3ms to router) [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec136 KBytes111 Kbits/sec wireless card is 02:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) bcmwl-kernel-source version 5.60.48.36+bdcom-0ubuntu5 == Regression details == Discovered in version: maverick Last known good version: lucid ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: laney 1558 F pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xd348 irq 23' Mixer name : 'Nvidia MCP89 HDMI' Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200' Controls : 28 Simple ctrls : 12 Date: Wed Sep 29 11:06:53 2010 HibernationDevice: RESUME=UUID=1c5b3f2c-2c89-4fa1-9ed8-0e238de8fe47 InstallationMedia: Ubuntu 10.04.1 LTS Lucid Lynx - Release amd64 (20100729) MachineType: Apple Inc. MacBookPro7,1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=2228fdfe-3834-40b2-b7b4-efea7463e3c1 ro quiet splash reboot=pci ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/usr/bin/zsh RelatedPackageVersions: linux-firmware 1.38 RfKill: SourcePackage: linux dmi.bios.date: 03/25/10 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP71.88Z.0039.B05.1003251322 dmi.board.name: Mac-F222BEC8 dmi.board.vendor: Apple Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F222BEC8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B05.1003251322:bd03/25/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8: dmi.product.name: MacBookPro7,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you are a member of Ubuntu
Re: [Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
This bug also affects natty. And gas extended to atheros wifi as well. On Feb 22, 2011 5:36 AM, Wolfgang Kufner 651...@bugs.launchpad.net wrote: Turns out that the workaround (sudo touch /etc/pm/power.d/wireless) I described in the bug description will not be sufficient for all hardware. It just keeps the script in /usr/lib/pm-utils/power.d/wireless from switching to power save mode. At least with some hardware there are other things that can switch power save mode on. Stefan Rehm's workaround in comment #9 will (perhaps) work in this case. Doing configuration in /usr is however probably not the best solution. Another workaround is to put a small script into the file in /etc/pm/power.d/wireless: gksu gedit /etc/pm/power.d/wireless in gedit write and save this: #!/bin/sh /sbin/iwconfig wlan0 power off set the file to executable with this: sudo chmod +x /etc/pm/power.d/wireless This workaround will however only work if sudo iwconfig wlan0 power off works for your driver. Try this out before. Your wlan might be called something other than wlan0 or you might need another command than iwconfig. Also, just as with Stefan Rehm's workaround, I am not sure that there might not be gaps between were something else switches power save on and this script gets called and switches it back off. In summary: One of the above should probably work for you, but no workaround looks all that perfect. Stefan Rehm's workaround will work for the greatest number of cases. ** Description changed: [WORKAROUND] - Disable the power saving measures implemented by /usr/lib/pm-utils/power.d/wireless. + (This will not fix all problems for all: see comment 24.) + Disable the power saving measures implemented by /usr/lib/pm-utils/power.d/wireless. To disable them do: sudo touch /etc/pm/power.d/wireless - You now should have an empty file named wireless without the executable bit set in /etc/pm/power.d. + You now should have an empty file named wireless without the executable bit set in /etc/pm/power.d. Check with: ls -lh /etc/pm/power.d/ You should see a file like this: -rw-r--r-- 1 root root 0 2010-12-31 18:53 wireless Reference: man pm-powersave [ORIGINAL REPORT] Since upgrading to maverick, wireless performance on my Macbook Pro 7.1 has been terrible. It was fine under lucid. Pinging the router: 13 packets transmitted, 12 received, 7% packet loss, time 12024ms rtt min/avg/max/mdev = 52.867/574.644/1203.660/441.552 ms, pipe 2 iperf to another machine connected via ethernet over power (typical latency from this machine is ~3ms to router) [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 136 KBytes 111 Kbits/sec wireless card is 02:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) bcmwl-kernel-source version 5.60.48.36+bdcom-0ubuntu5 == Regression details == Discovered in version: maverick Last known good version: lucid ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: laney 1558 F pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xd348 irq 23' Mixer name : 'Nvidia MCP89 HDMI' Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200' Controls : 28 Simple ctrls : 12 Date: Wed Sep 29 11:06:53 2010 HibernationDevice: RESUME=UUID=1c5b3f2c-2c89-4fa1-9ed8-0e238de8fe47 InstallationMedia: Ubuntu 10.04.1 LTS Lucid Lynx - Release amd64 (20100729) MachineType: Apple Inc. MacBookPro7,1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=2228fdfe-3834-40b2-b7b4-efea7463e3c1 ro quiet splash reboot=pci ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/usr/bin/zsh RelatedPackageVersions: linux-firmware 1.38 RfKill: SourcePackage: linux dmi.bios.date: 03/25/10 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP71.88Z.0039.B05.1003251322 dmi.board.name: Mac-F222BEC8 dmi.board.vendor: Apple Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F222BEC8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B05.1003251322:bd03/25/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8: dmi.product.name: MacBookPro7,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Can we please /stop/ posting workarounds to this bug now; bug reports are not the place for them to live. The bug should be used for developers to track the real fix in the distribution. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Changed in: linux Importance: Unknown = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Changed in: linux Status: Unknown = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
I have posted a more correct way to disable powersaving in the bug description at the top. Iain, does this work for you? ** Description changed: - Since upgrading to maverick, wireless performance on my Macbook Pro 7.1 - has been terrible. It was fine under lucid. + [WORKAROUND] + Disable the power saving measures implemented by /usr/lib/pm-utils/power.d/wireless. + To disable them do: + sudo touch /etc/pm/power.d/wireless + + You now should have an empty file named wireless without the executable bit set in /etc/pm/power.d. + Check with: + ls -lh /etc/pm/power.d/ + You should see a file like this: + -rw-r--r-- 1 root root 0 2010-12-31 18:53 wireless + + Reference: man pm-powersave + + [ORIGINAL REPORT] + Since upgrading to maverick, wireless performance on my Macbook Pro 7.1 has been terrible. It was fine under lucid. Pinging the router: 13 packets transmitted, 12 received, 7% packet loss, time 12024ms rtt min/avg/max/mdev = 52.867/574.644/1203.660/441.552 ms, pipe 2 iperf to another machine connected via ethernet over power (typical latency from this machine is ~3ms to router) [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec136 KBytes111 Kbits/sec wireless card is 02:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) bcmwl-kernel-source version 5.60.48.36+bdcom-0ubuntu5 == Regression details == Discovered in version: maverick Last known good version: lucid ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: laney 1558 F pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'NVidia'/'HDA NVidia at 0xd348 irq 23' Mixer name : 'Nvidia MCP89 HDMI' Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200' Controls : 28 Simple ctrls : 12 Date: Wed Sep 29 11:06:53 2010 HibernationDevice: RESUME=UUID=1c5b3f2c-2c89-4fa1-9ed8-0e238de8fe47 InstallationMedia: Ubuntu 10.04.1 LTS Lucid Lynx - Release amd64 (20100729) MachineType: Apple Inc. MacBookPro7,1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=2228fdfe-3834-40b2-b7b4-efea7463e3c1 ro quiet splash reboot=pci ProcEnviron: PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/usr/bin/zsh RelatedPackageVersions: linux-firmware 1.38 RfKill: SourcePackage: linux dmi.bios.date: 03/25/10 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP71.88Z.0039.B05.1003251322 dmi.board.name: Mac-F222BEC8 dmi.board.vendor: Apple Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F222BEC8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B05.1003251322:bd03/25/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8: dmi.product.name: MacBookPro7,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
#9 comment solution helped on macbook 5,1 (Ubuntu 10.10, 2.6.35-23-generic) also. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Editing /usr/lib/pm-utils/power.d/wireless as described in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/651008/comments/9 did indeed fix this permanently on my MacBook 4,1 with a Broadcom Corporation BCM4321 802.11a/b/g/n (rev 03) controller. WLAN throughput is now at normal levels (around 7 to 8 Mbit/s effective at 54 Mb/s nominal) even on battery power. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
One typo in my last above comment: ‘echo “pm-utils hold” | dpkg –set-selections’ should be ‘echo “pm-utils hold” | dpkg --set-selections’ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
OK, I’ve made significant progress on what has turned out to be two manifestations of the same problem (at least they seem to be the same problem on my machine, a Dell Studio 1558 with a Broadcom 43224 wireless card, using the Broadcom STA driver). It stems from the pm-utils package, apparently. The two bug reports are: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- ati/+bug/662998 and https://bugs.launchpad.net/ubuntu/+source/linux/+bug/651008 You, like me, might be affected by both these bugs. If so, go on. If not, I wouldn’t recommend making all of these changes for no reason. The fix for the 662998 bug (System freezes while running on battery) has been to either go back to a 2.6.34 or earlier kernel, OR to go back to the Lucid Lynx version of pm-utils. The fix for the 651008 bug (Regression in wireless performance under Maverick when on battery power (broadcom)) is to set iwconfig to turn off power saving for the wireless card. This can be done by the command “sudo iwconfig ethx power off”, AFTER you unplug the ac power supply (where ethx is eth1, eth2, etc, whatever Ethernet device is your wireless card). Comment #9 in the 651008 bug report above tells how to do this as a permanent work-around by editing the file /usr/lib/pm-utils/power.d/wireless. My work-around for fixing both problems involves going back to the Lucid Lynx version of pm-utils, but keeping the modified script /usr/lib/pm- utils/power.d/wireless, which is only found in the Maverick version of pm-utils. This solves the freezing on battery power problem and keeps network performance up to par while on battery power, all while letting you use the latest kernel. Assuming you’re starting with a Maverick Ubuntu or Kubuntu installation, go to /usr/lib/pm-utils/power.d and make a copy of the file ‘wireless’, say, copying it to the file ‘wireless.orig’. The command is ‘sudo cp /usr/lib/pm-utils/power.d/wireless /usr/lib/pm- utils/power.d/wireless.orig’. We’ll use that file later. Next, uninstall the package ‘pm-utils’ using Synaptic or KPackageKit or the command line programs. This will remove the file ‘wireless’ from /usr/lib/pm-utils/power.d, which is why we just made a copy of it, so we can use it later. On my system, the package acpi-support was removed as well, so make note of any packages that were removed along with pm- utils. Next, edit your sources in KPackageKit or Synaptic to add ‘deb http://us.archive.ubuntu.com/ubuntu/ lucid main’ (note the space after the last ‘/’ (for US users; those in other countries can use ‘deb http://archive.ubuntu.com/ubuntu/ lucid main’). This is so we can grab the previous version of pm-utils. Now you need to install the previous version of pm-utils. First, check the available versions of pm-utils by going to the command line (Terminal or Konsole) and typing ‘apt-cache showpkg pm-utils’. Both the current and previous versions should be displayed somewhere in the output. Then install the old Lucid version of pm-utils. I did this using the command line, like so: ‘sudo apt-get install pm- utils=1.3.0-1ubuntu1’. Be sure to reinstall acpi-support or any other packages that were previously uninstalled. To keep the pm-utils package from being upgraded when Update Manager does it’s next update, go to the command line and temporarily become root: ‘sudo su’ Then tell dpkg to hold back the version number of pm-utils: ‘echo “pm-utils hold” | dpkg –set-selections’ (note that the double quotes around “pm-utils hold” actually need to be typed in the command line). Now exit being root: ‘exit’ You should see the command prompt say your normal user name instead of root. Now you can go back in to Synaptic or KPackageKit and remove the Lucid sources in your sources list. Finally, go to the folder /usr/lib/pm-utils/power.d/ and edit the file ‘wireless.orig’ in accordance with comment #9 in this thread: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/651008. Basically, look for the section of the file that looks similar to that below. Change all the batt variables to have the same values as the ac variables. The text below shows what the final edit should look like. case $driver in ipw2100) iwpriv_ac=set_power 0 iwpriv_batt=set_power 0 iwconfig_ac=power on iwconfig_batt=power on;; ipw3945) iwpriv_ac=set_power 6 iwpriv_batt=set_power 6;; iwl*) if [ -f /sys/class/net/$1/device/power_level ]; then iwlevel_ac=0 iwlevel_batt=0 else iwconfig_ac=power off iwconfig_batt=power off fi;; *) iwconfig_ac=power off iwconfig_batt=power off;; esac Save the file. However, be careful NOT to have two versions of the file ‘wireless’ in the folder /usr/lib/pm-utils/power.d/. In both pm-utils 1.3 and pm-utils 1.4, apparently scripts in that folder are executed when unplugging the
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Tags added: acpi ** Tags added: acpi-apic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/651008 Title: Regression in wireless performance under Maverick when on battery power (broadcom) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Bug watch added: Linux Kernel Bug Tracker #23942 http://bugzilla.kernel.org/show_bug.cgi?id=23942 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=23942 Importance: Unknown Status: Unknown -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same issue on an Acer 5515. I've done both upgrade from lucid and complete install. I also tried Stefan's Suggestion (#9) and the sudo iwconfig eth1 power off suggestion. Neither one works for me. If I boot up on AC power, wireless networking is fine. If I unplug AC, I lose wireless networking within 10 seconds, and the system asks me for a password multiple times before giving up. If I plug in, it still won't connect until I restart. I have also gone back to lucid and everything worked fine, even when on battery. Somebody help, please. I'd really love to get this worked out. Seems like there'd be some kind of easy fix since it works fine in lucid? Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
I'm using a Dell Studio 1458 with network controller: Broadcom Corporation BCM43224 802.11a/b/g/n (rev 01) and running Maverick 10.10. Using the workaround command seems to help with performance. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same problem and same workaround works on a Dell e6400, BCM4322 chip, running Maverick (10.10). Also confirming Natty drivers have the same problem. Wireless worked perfectly on Lucid. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
This seems to affect a lot of wifi cards. I'm also affected on my Acer 1830T with Network controller: Broadcom Corporation BCM43225 802.11b/g/n (rev 01) My PackardBell MX52 with AR5001 won't connect at all when on battery. It works fine on AC, same as others already reported. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same problem here with an Ideapad S12: 03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP- PHY (rev 01) Please let me know if any further information is needed. Cheers, Florian -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same here. On a HP Pavilion DV9000. The sudo iwconfig eth1 power off also works for me. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same thing in natty (which already got an updated bcmwl and kernel). Reporting from a Lenovo S12 ** Branch linked: lp:ubuntu/bcmwl ** Tags added: natty -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Tags added: maverick regression-release ** Tags removed: regression-potential ** Description changed: Since upgrading to maverick, wireless performance on my Macbook Pro 7.1 has been terrible. It was fine under lucid. Pinging the router: - 13 packets transmitted, 12 received, 7% packet loss, time 12024ms - rtt min/avg/max/mdev = 52.867/574.644/1203.660/441.552 ms, pipe 2 + 13 packets transmitted, 12 received, 7% packet loss, time 12024ms + rtt min/avg/max/mdev = 52.867/574.644/1203.660/441.552 ms, pipe 2 iperf to another machine connected via ethernet over power (typical latency from this machine is ~3ms to router) - [ ID] Interval Transfer Bandwidth - [ 3] 0.0-10.0 sec136 KBytes111 Kbits/sec + [ ID] Interval Transfer Bandwidth + [ 3] 0.0-10.0 sec136 KBytes111 Kbits/sec wireless card is - 02:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n + 02:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) bcmwl-kernel-source version 5.60.48.36+bdcom-0ubuntu5 + + == Regression details == + Discovered in version: maverick + Last known good version: lucid ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: linux-image-2.6.35-22-generic 2.6.35-22.33 Regression: Yes Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4 Uname: Linux 2.6.35-22-generic x86_64 NonfreeKernelModules: nvidia wl AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: - List of CAPTURE Hardware Devices - card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog] -Subdevices: 1/1 -Subdevice #0: subdevice #0 + List of CAPTURE Hardware Devices + card 0: NVidia [HDA NVidia], device 0: Cirrus Analog [Cirrus Analog] + Subdevices: 1/1 + Subdevice #0: subdevice #0 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC0: laney 1558 F pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC0: laney 1558 F pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: - Card hw:0 'NVidia'/'HDA NVidia at 0xd348 irq 23' -Mixer name : 'Nvidia MCP89 HDMI' -Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200' -Controls : 28 -Simple ctrls : 12 + Card hw:0 'NVidia'/'HDA NVidia at 0xd348 irq 23' + Mixer name : 'Nvidia MCP89 HDMI' + Components : 'HDA:10134206,106b0d00,00100301 HDA:10de000c,10de0101,00100200' + Controls : 28 + Simple ctrls : 12 Date: Wed Sep 29 11:06:53 2010 HibernationDevice: RESUME=UUID=1c5b3f2c-2c89-4fa1-9ed8-0e238de8fe47 InstallationMedia: Ubuntu 10.04.1 LTS Lucid Lynx - Release amd64 (20100729) MachineType: Apple Inc. MacBookPro7,1 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=2228fdfe-3834-40b2-b7b4-efea7463e3c1 ro quiet splash reboot=pci ProcEnviron: - PATH=(custom, user) - LANG=en_GB.UTF-8 - SHELL=/usr/bin/zsh + PATH=(custom, user) + LANG=en_GB.UTF-8 + SHELL=/usr/bin/zsh RelatedPackageVersions: linux-firmware 1.38 RfKill: - + SourcePackage: linux dmi.bios.date: 03/25/10 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP71.88Z.0039.B05.1003251322 dmi.board.name: Mac-F222BEC8 dmi.board.vendor: Apple Inc. dmi.chassis.type: 10 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-F222BEC8 dmi.modalias: dmi:bvnAppleInc.:bvrMBP71.88Z.0039.B05.1003251322:bd03/25/10:svnAppleInc.:pnMacBookPro7,1:pvr1.0:rvnAppleInc.:rnMac-F222BEC8:rvr:cvnAppleInc.:ct10:cvrMac-F222BEC8: dmi.product.name: MacBookPro7,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. ** Also affects: bcmwl (Ubuntu Maverick) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Maverick) Importance: Undecided Status: New ** Changed in: bcmwl (Ubuntu Maverick) Status: New = Confirmed -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
I have a VERY similar problem (same bug?). When I am plugged in to AC Power everything w/ WiFi works as expected. If I am connected and unplug, or boot unplugged, I cannot connect to any WLAN. After a non AC Powered WLAN connection attempt, plugging the machine in doesn't correct the issue. I have a HP Mini 110. lspci yields: 01:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01) I am going to try the fix offered by Stefan above, or David Guest's work around. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Here is a workaround to solve this issue permanantly: sudo gedit /usr/lib/pm-utils/power.d/wireless (make a copy before doing these changes) do these changes in the scriptsnippet: case $driver in ipw2100) iwpriv_ac=set_power 0 iwpriv_batt=set_power 0 iwconfig_ac=power on iwconfig_batt=power on;; ipw3945) iwpriv_ac=set_power 6 iwpriv_batt=set_power 6;; iwl*) if [ -f /sys/class/net/$1/device/power_level ]; then iwlevel_ac=0 iwlevel_batt=0 else iwconfig_ac=power off iwconfig_batt=power off fi;; *) iwconfig_ac=power off iwconfig_batt=power off;; esac -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
I can confirm this behavior on the Dell Mini 10v (Dell Inspiron 1011). Speeds are roughly 30 Mbits/s through iperf when plugged into power but drop to approximately 3 Mbits/s when running on battery power. lspci reveals my wireless card to be: 03:00.0 Network controller: Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller (rev 01) I can verify that David Guest's suggestion of using sudo iwconfig eth1 power off works to bring wireless networking back up to expected speeds. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
Same probleme here on a Dell Mini 9. Did I have to unplug the device from a power supply bevor the workaround with iwconfig ethX power off works? -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
yes, unplug first. otherwise some script enables the powersavings features. On Sun, Oct 17, 2010 at 4:22 AM, Stefan Rehm 651...@bugs.launchpad.netwrote: Same probleme here on a Dell Mini 9. Did I have to unplug the device from a power supply bevor the workaround with iwconfig ethX power off works? -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a direct subscriber of the bug. -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
same here on a hp G72 Broadcom Corporation BCM4313 802.11b/g LP-PHY While on battery power file transfers of files to a local network machile are limited to around 150KB/sec when on AC power the full speed is achieved. steps to reproduce: (Note I have a 5 mb connection) while on ac power go to speakeast.net/speedtest and choose a location. max speed is 4.3mbs unplug AC and rerun same test. max speed is now 1.5mbs Tested under windows 7 and full speed is achieved independent of power source. also this is a 802.11n also, however it is not reported in lspci http://www.broadcom.com/products/Wireless-LAN/802.11-Wireless-LAN-Solutions/BCM4313 -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 651008] Re: Regression in wireless performance under Maverick when on battery power (broadcom)
** Summary changed: - Regression in wireless performance under Maverick (broadcom) + Regression in wireless performance under Maverick when on battery power (broadcom) -- Regression in wireless performance under Maverick when on battery power (broadcom) https://bugs.launchpad.net/bugs/651008 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
