Christopher M. Penalver, i would like to ask you, how to call or address problem (if you take a look at comment 28 and this comment below)?
* Power consumption for wg111v3 with current linux driver rtl8187 is inefficient ? * Need more inefficient power consumption for device wg111v3 ? * TX Power problem or wrong voltage? (of course it's just fun to think about this: and how to verify it ? :D ..... ) * And usb cable ...... uninterference algorith is wrong or driver (kernel, OS) lacks of it at all? * Or usb power control in OS is wrong ? So how to look at situation, which direction to go? All i can say, that this problem ( chip rtl8187b overheating ) can lead to : * connection degrades after few minutes or after 30 min (all depends how device is dissipating heat at it depends on each situation and moment differently and additional cooling really solves problem) * OS can reports it's "Excellently" connected - but in reality it can't move a byte; * or connection rate and stability can vary from time to time . I like this comment from: http://www.tomshardware.co.uk/forum/347032-28-enabling-power-adjustment-rtl8187-chipset Although it has the same chipset, it's the adapter manufacturer who decides which chipset features are actually available to the end user. In any event, leaving TX Power at the default is always the recommended action since increasing it can have negative effects such as: * overheating of the power amplifier chip and the card which will cause lower efficiency and more data errors; * overdriving the amplifier which will cause more data errors; * excessive power usage for the card and this may overload the 3.3V power supply of the board that the card is located on resulting in voltage drop and reboot or excessive temperatures for the board. * Life-expectancy of the adapter is greatly reduced. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/802902 Title: Realtek rtl8187b wireless chipset slow speed Status in The Linux Kernel: Invalid Status in “linux” package in Ubuntu: Fix Released Bug description: Hi, I have ubuntu 11.04, all updates, wifi chipset rtl8187B, kernel 2.6.38-10, and 14mbit/s internet connection. When I try to download something, for example from torrents, I see ping up (up to 500-800ms), slow speed (<1mbit/s) and packets lost. In windows its works fine, ping didnt up, download speed 14mbit/s. So if I want to download something, I need to reboot from ubuntu to windows, or wait for download at low speed in ubuntu. And it's not good=( Thanks, and sorry my bad english. laptop:~$ uname -a Linux mike-laptop 2.6.38-10-generic #44-Ubuntu SMP Thu Jun 2 21:32:22 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux laptop:~$ modprobe --show-depends rtl8187 insmod /lib/modules/2.6.38-10-generic/updates/drivers/misc/eeprom/eeprom_93cx6.ko insmod /lib/modules/2.6.38-10-generic/updates/net/wireless/cfg80211.ko insmod /lib/modules/2.6.38-10-generic/updates/net/mac80211/mac80211.ko insmod /lib/modules/2.6.38-10-generic/updates/drivers/net/wireless/rtl818x/rtl8187/rtl8187.ko laptop:~$ sudo lsusb -d 0bda:8187 Bus 001 Device 004: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: linux-image-2.6.38-10-generic 2.6.38-10.44 ProcVersionSignature: Ubuntu 2.6.38-10.44-generic 2.6.38.7 Uname: Linux 2.6.38-10-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mike 2412 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfcb00000 irq 43' Mixer name : 'Realtek ALC269' Components : 'HDA:10ec0269,144dc06a,00100004' Controls : 13 Simple ctrls : 8 Card1.Amixer.info: Card hw:1 'NVidia'/'HDA NVidia at 0xddefc000 irq 16' Mixer name : 'Nvidia GPU 0b HDMI/DP' Components : 'HDA:10de000b,10de0101,00100100' Controls : 16 Simple ctrls : 4 Date: Tue Jun 28 13:24:48 2011 HibernationDevice: RESUME=UUID=339679fe-6015-48a0-b9f5-9bdecde05562 InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110405) MachineType: SAMSUNG ELECTRONICS CO., LTD. R530/R730/P530 ProcEnviron: LANGUAGE=ru_RU:en PATH=(custom, no user) LANG=ru_RU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=eae27d1a-6cca-45bb-8c38-d8cdd238b079 ro quiet splash nomodeset video=uvesafb:mode_option=1377x768-24,mtrr=3,scroll=ywrap vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.38-10-generic N/A linux-backports-modules-2.6.38-10-generic N/A linux-firmware 1.52.1 SourcePackage: linux UpgradeStatus: Upgraded to natty on 2011-05-04 (54 days ago) dmi.bios.date: 06/21/2010 dmi.bios.vendor: Phoenix Technologies Ltd. dmi.bios.version: 04KQ.M007.20100621.KSJ dmi.board.asset.tag: Tag 12345 dmi.board.name: R530/R730/P530 dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04KQ.M007.20100621.KSJ:bd06/21/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnR530/R730/P530:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR530/R730/P530:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: R530/R730/P530 dmi.product.version: Not Applicable dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. 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