Public bug reported:
In the Linux kernel version 4.15.0-36-generic with the D-Link DWA-121
mini USB WiFi using the rtl8192cu driver on Ubuntu 18.04, it appears
that the driver is not controlling the blue LED that blinks when there
is download/upload going on, so the LED keeps on.
This will cause users of this dongle to open network statistics to see
if there is download/upload going on rather than simply looking at the
LED. It's time consuming.
The driver works fine on Windows, so it's a driver issue. It didn't
affect my AP performance. It's just the LED that doesn't blink.
- Steps to reproduce:
1. Install Ubuntu 18.04 on a system that has D-Link DWA-121 mini USB WiFi
dongle or try it live
2. Look at the statistics light (blue LED) on the dongle. It's not blinking,
whether there is download/upload or not.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-36-generic 4.15.0-36.39
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.15.0-36-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.15.0-36-generic.
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: eofla 1001 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'V8235'/'VIA 8235 with ALC650F at 0xe000, irq 22'
Mixer name : 'Realtek ALC650F'
Components : 'AC97a:414c4723'
Controls : 62
Simple ctrls : 36
CurrentDesktop: LXDE
Date: Thu Oct 11 19:15:25 2018
InstallationDate: Installed on 2018-09-28 (13 days ago)
InstallationMedia: Lubuntu 18.04.1 LTS "Bionic Beaver" - Release i386 (20180725)
MachineType: MSI MS-6712
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic
root=UUID=e0d9a13c-6776-4241-b61f-164ae076b371 ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-36-generic N/A
linux-backports-modules-4.15.0-36-generic N/A
linux-firmware 1.173.1
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: irda via_ircc
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/02/01
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: Version 07.00T
dmi.board.name: MS-6712
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: 0123ABC
dmi.chassis.type: 3
dmi.chassis.vendor: Uknown Chassis Manufacture
dmi.chassis.version: Version 1.00
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrVersion07.00T:bd04/02/01:svnMSI:pnMS-6712:pvr1.0:rvnMSI:rnMS-6712:rvr1.0:cvnUknownChassisManufacture:ct3:cvrVersion1.00:
dmi.product.name: MS-6712
dmi.product.version: 1.0
dmi.sys.vendor: MSI
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug bionic i386 staging
** Attachment added: "PCI list"
https://bugs.launchpad.net/bugs/1797420/+attachment/5200109/+files/lspci-vnvn.log
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https://bugs.launchpad.net/bugs/1797420
Title:
rtl8192cu driver and D-Link DWA-121 USB WiFi dongle LED issues -
Ubuntu 18.04
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