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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1572698
Title:
Slow speed and dropped connections with Realtek RTL8192CU-based wifi
Status in linux package in Ubuntu:
Incomplete
Bug description:
I am using a D-Link DWA-131 USB wlan adapter to connect to my private wlan.
The adapter works fine under Windows and I have no problems connecting to my
wlan with other devices (e.g. my laptop running Linux Mint).
However, the adapter, which is based on the Realtek rtl8192cu chipset, won't
work correctly on any current Ubuntu machine (in my case Kubuntu 15.10 64bit):
As also showcased by a myriad of other bug reports (most of which have
expired by now), wlan-adapters based on the Realtek rtl8192cu chipset exhibit
very slow connection speeds and frequently dropped connections with current
Linux kernels.
I have noticed this originally in Linux Mint 17 running kernel 3.19.x, in
Kubuntu 15.10 up to 4.2.0.35 and can confirm that it is still present in a live
session of Xenial Xerus (16.04).
I have tried commonly mentioned "fixes" such as deactivating hardware
encryption without success.
The drivers available on the Realtek homepage are apparently intended
for older kernels and won't install.
There is, however, a fixed driver available via github
(https://github.com/pvaret/rtl8192cu-fixes).
I have followed the instructions found there and finally my wlan-adapter is
working correctly.
Apparently the issues caused by the broken driver in the linux kernels might
be connected to power management.
I am posting this bug here in the hope that some developer finally
manages to incorporate the (obviously available) fixes found in the
github-drivers into the drivers already included in the kernel.
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