root@beaglebone:~# sudo iwconfig wlan0 power off Error for wireless request "Set Power Management" (8B2C) : SET failed on device wlan0 ; Operation not supported.
My device does not seem to support power management. But I also will try if the problem exist in this kernel. Please wait for my results RobertCNelson於 2015年7月30日星期四 UTC+8上午9時02分47秒寫道: > > On Wed, Jul 29, 2015 at 8:00 PM, Robert Nelson <robert...@gmail.com > <javascript:>> wrote: > > Please retest with: 4.1.3-ti-r6 > > > > cd /opt/scripts/tools/ > > git pull > > > > sudo ./update_kernel.sh --ti-kernel --beta > > > > > > > > On Wed, Jul 29, 2015 at 7:53 PM, Sina Chou <sina...@gmail.com > <javascript:>> wrote: > >> I use D-Link Corp. DWA-121 802.11n Wireless N 150 on beaglebone black > RevC. > >> For USB hotplug purpose, I update my kernel to EXPERIMENTAL > 4.2.0-rc4-bone2 > >> and TESTING 4.1.0-rc8-bone9. > >> However, I found that on newer version compared to STABLE 3.8.13-bone73 > , > >> ping packet loss rate is higher. > >> some packets response ""Destination Host Unreachable" > >> Anyone having idea or have similar problems? > > > > Please retest with: 4.1.3-ti-r6 > > > > cd /opt/scripts/tools/ > > git pull > > > > sudo ./update_kernel.sh --ti-kernel --beta > > > > Then create a file /etc/modprobe.d/8192cu.conf with the following > contents: > > > > options 8192cu rtw_power_mgnt=0 rtw_enusbss=0 > > Sorry this ^8192cu step was for the old driver, for the mainline just: > > sudo iwconfig wlan0 power off > > to disable power managment... > > Regards, > > -- > Robert Nelson > https://rcn-ee.com/ > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.