ubuntu 16.04

[Ryogaag]

I installed fresh ubuntu 16.04 and tried this method, when i try to connect to my wifi it doesn't work and keep asking for the password of the network

[pvaret]

Can you try updating to the very latest version (fcb0ecc) and rebooting? Ubuntu recently added a new driver that wasn't in our blacklist until half a day ago.

[Ryogaag]

After the third restart it worked, but it's very slow.
I already checked for the blacklist-native-rtl8192.conf and it's correct.
What can i do?

EDIT: it's not actually slow, it works at interval, there are times were it doesn't load anything and there are times where it goes fast.
And know has lost connection.

Sorry for my bad english :)

[pvaret]

Did you have this problem before switching to Ubuntu 16.04?

[dlech]

Also, what is output of lsmod?

[Ryogaag]

before it worked fine.
This is the lsmod result:

Module Size Used by
snd_usb_audio 176128 0
snd_usbmidi_lib 36864 1 snd_usb_audio
nls_iso8859_1 16384 1
8192cu 532480 0
mac80211 737280 0
cfg80211 565248 1 mac80211
gspca_ov534 20480 0
gspca_main 36864 1 gspca_ov534
v4l2_common 16384 1 gspca_main
videodev 176128 3 gspca_main,v4l2_common,gspca_ov534
media 24576 1 videodev
eeepc_wmi 16384 0
asus_wmi 28672 1 eeepc_wmi
sparse_keymap 16384 1 asus_wmi
video 40960 1 asus_wmi
kvm_amd 65536 0
kvm 536576 1 kvm_amd
snd_hda_codec_realtek 81920 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 53248 1
snd_hda_intel 36864 5
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
joydev 20480 0
input_leds 16384 0
snd_pcm 106496 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
irqbypass 16384 1 kvm
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 2 snd_usbmidi_lib,snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
snd_timer 32768 2 snd_pcm,snd_seq
aesni_intel 167936 0
aes_x86_64 20480 1 aesni_intel
lrw 16384 1 aesni_intel
gf128mul 16384 1 lrw
glue_helper 16384 1 aesni_intel
ablk_helper 16384 1 aesni_intel
snd 81920 23 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore 16384 1 snd
serio_raw 16384 0
cryptd 20480 2 aesni_intel,ablk_helper
fam15h_power 16384 0
k10temp 16384 0
edac_mce_amd 24576 0
edac_core 53248 0
i2c_piix4 24576 0
shpchp 36864 0
mac_hid 16384 0
8250_fintek 16384 0
tpm_infineon 20480 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
uas 24576 0
usb_storage 69632 2 uas
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 hid_generic,usbhid
amdkfd 122880 1
amd_iommu_v2 20480 1 amdkfd
radeon 1511424 3
mxm_wmi 16384 0
i2c_algo_bit 16384 1 radeon
ttm 98304 1 radeon
drm_kms_helper 139264 1 radeon
psmouse 126976 0
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
r8169 81920 0
fb_sys_fops 16384 1 drm_kms_helper
mii 16384 1 r8169
drm 360448 45 ttm,drm_kms_helper,radeon
ahci 36864 3
libahci 32768 1 ahci
fjes 28672 0
wmi 20480 2 mxm_wmi,asus_wmi

[pvaret]

Hmm. The odd thing is, this driver did not change, so your issues seem to indicate that something else did. It's a long shot, but could you try the following?

sudo modprobe -r mac80211
sudo modprobe -r cfg80211

[Ryogaag]

It's still unstable
here's the lsmod

Module Size Used by
8192cu 532480 0
snd_usb_audio 176128 0
snd_usbmidi_lib 36864 1 snd_usb_audio
nls_iso8859_1 16384 1
mac80211 737280 0
cfg80211 565248 1 mac80211
gspca_ov534 20480 0
gspca_main 36864 1 gspca_ov534
v4l2_common 16384 1 gspca_main
videodev 176128 3 gspca_main,v4l2_common,gspca_ov534
media 24576 1 videodev
eeepc_wmi 16384 0
asus_wmi 28672 1 eeepc_wmi
sparse_keymap 16384 1 asus_wmi
video 40960 1 asus_wmi
kvm_amd 65536 0
kvm 536576 1 kvm_amd
input_leds 16384 0
joydev 20480 0
snd_hda_codec_realtek 81920 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
snd_hda_codec_hdmi 53248 1
irqbypass 16384 1 kvm
snd_hda_intel 36864 5
snd_hda_codec 135168 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
crct10dif_pclmul 16384 0
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
crc32_pclmul 16384 0
snd_pcm 106496 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 2 snd_usbmidi_lib,snd_seq_midi
aesni_intel 167936 0
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
aes_x86_64 20480 1 aesni_intel
snd_timer 32768 2 snd_pcm,snd_seq
lrw 16384 1 aesni_intel
snd 81920 23 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
gf128mul 16384 1 lrw
soundcore 16384 1 snd
glue_helper 16384 1 aesni_intel
shpchp 36864 0
ablk_helper 16384 1 aesni_intel
serio_raw 16384 0
cryptd 20480 2 aesni_intel,ablk_helper
edac_mce_amd 24576 0
edac_core 53248 0
fam15h_power 16384 0
k10temp 16384 0
i2c_piix4 24576 0
mac_hid 16384 0
8250_fintek 16384 0
tpm_infineon 20480 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
uas 24576 0
usb_storage 69632 2 uas
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 hid_generic,usbhid
amdkfd 122880 1
amd_iommu_v2 20480 1 amdkfd
radeon 1511424 3
mxm_wmi 16384 0
i2c_algo_bit 16384 1 radeon
ttm 98304 1 radeon
drm_kms_helper 139264 1 radeon
psmouse 126976 0
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
r8169 81920 0
fb_sys_fops 16384 1 drm_kms_helper
mii 16384 1 r8169
drm 360448 49 ttm,drm_kms_helper,radeon
ahci 36864 3
libahci 32768 1 ahci
fjes 28672 0
wmi 20480 2 mxm_wmi,asus_wmi

Thanks for the help you're giving to me :)

[speendo]

I seem to have similar issues on Debian Stretch

[ChadFulton]

I have no idea what I'm doing here, but I just did clean installs of Ubuntu 16.04 on two machines with the Edimax EW-7811Un chip. As usual, wireless was terrible out of the box.

Both times when I ran through the instructions on the site once and rebooted, it did not recognize that there was a wifi device available. If I removed the blacklist file, it recognized the native driver and had bad performance again.

However, both times, when I just ran through the same instructions a second time, starting at "Set it up as a DKMS module:" and continuing through re-adding the blacklist, it then worked perfectly after reboot.

I'm almost positive that I didn't miss any of the steps the first time through, and the exact same thing did happen this same way with two separate installations.

By the way, thanks for a great fix.

[dbrons]

Same for me on Ubuntu 15.10 , kernel 4.2.0.-36 ... under Virtualbox

lsusb BUS 001 Device 002: ID 0ba:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter

lsmod, as expected, these modules was loaded : mac80211 + cfg80211.

8192cu is loaded, but not in use.

modprobe -r mac80211
modprobe -r cfg80211

done, but didn't solve the problem.

I added these lines in /etc/modprobe.d/blacklist-native-rtl8192.conf

install mac80211 /bin/false
install cfg80211 /bin/false

after a reboot, they are not anymore loaded in lsmod

ethtool -i wlex8de2709c6c0:
driver: rtl8192cu

I added these lines:

echo '8192cu' | sudo tee -a /etc/modules
echo "0bda 8178" | sudo tee /sys/bus/usb/drivers/rtl8192cu/new_id

and at etc/rc.local
echo "0bda 8178" | tee /sys/bus/usb/drivers/rtl8192cu/new_id
exit 0

sudo lshw -C network
**-network

description: Wireless interface
physical id: 1
bus info: usb@1:1
logical name: wlxe8de2709c6c0
serial: e8:d e:27:09:c6:c0
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu multicast=yes wireless=unassociated**

dmesg | grep 8192
[ 359.310494] 8192cu: module verification failed: signature and/or required key missing - tainting kernel
[ 361.743969] usbcore: registered new interface driver rtl8192cu
[ 363.084621] rtl8192cu 1-1:1.0 wlxe8de2709c6c0: renamed from wlan0

lsmod | grep 8192cu
8192cu 532480 0
...

[dbrons]

just to inform you that with a fresh install of Ubuntu 16.04 on a laptop, I have nor problem with kernel driver rtl8192cu ...

[ashishkotnala29]

@dbrons Do you mean that the default built-in kernel driver rtl8192cu works in kernel 4.4+, therefore no need to build this driver anymore?
I also have a Netgear WNA1000M USB WiFi adapter with rtl8188csu chipset which uses same kernel driver, so in Ubuntu 16.04 it's fully supported?

[dbrons]

Hey @ashishkotnala29 ! Indeed with the built-in driver from Ubuntu 16.04, I had no problem with my wifi dongle (TL-WN822N). All my problems was coming from a use of the 8192cu fixe (or rtl8192cu built-in driver) on any verison of Ubuntu under VirtualBox.

[ctrlmaniac]

It does not see any wifi now after installing the fix

[roboticboyer]

I have fixed this issue using the comment of @ChadFulton

[pvaret]

As a late update: I found that issues with intermittently unstable connections seemed to be caused by power management issues in NetworkManager. In short, consider disabling power management. Disabling it made the driver work well for me. You may also consider switching to the rtl8xxxu driver from the mainline kernel, which works well these days.