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Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - Printable Version

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RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - vise - 07-03-2012 12:51 PM

(07-02-2012 10:45 PM)s7mx1 Wrote:  
(07-02-2012 10:07 PM)vise Wrote:  http://pastebin.com/EqkWFsuZ


Using D-link DWA-140. Not been able to set it up.

Its using ralink chipset you need to install ralink-firmware. Search forum.

installed the ralink-firmware with apt-get from the non free distro. But to no avail. I will try again tonight...


RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - s7mx1 - 07-03-2012 01:00 PM

Check this http://ubuntuforums.org/showpost.php?p=11806939&postcount=5

Code:
sudo modprobe rt2800usb
sudo bash -c "echo 2001 3c15 > /sys/bus/usb/drivers/rt2800usb/new_id"

(07-03-2012 12:51 PM)vise Wrote:  
(07-02-2012 10:45 PM)s7mx1 Wrote:  
(07-02-2012 10:07 PM)vise Wrote:  http://pastebin.com/EqkWFsuZ


Using D-link DWA-140. Not been able to set it up.

Its using ralink chipset you need to install ralink-firmware. Search forum.

installed the ralink-firmware with apt-get from the non free distro. But to no avail. I will try again tonight...



RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - NotSoNinja - 07-03-2012 04:01 PM

Ok I can confirm no difference with the powered USB hub or with a different power supply on the pi itself so I'm inclined to agree there may be issues with the way the 8192cu.ko driver is working with the Edimax dongle. It's intermittent and may indeed be a case of it powering down if the network is not used. Once video is playing it seems more stable but that might just be my perception.

Incidentally I can't find any router settings with those (20/40Mhz) values?

Any thoughts? and should we maybe start a new thread specifically for this dongle?

Bruce

(07-03-2012 10:45 AM)s7mx1 Wrote:  You need to double check your router settings (20/40 MHz etc) for any buffer issue.

I do remember when I built the driver there was a power management option. I shall receive my Edimax dongle soon thanks to mxpwr and will try see if I could change the default power saving behaviour.

(07-02-2012 11:57 PM)cjdawson Wrote:  
(07-02-2012 05:00 AM)NotSoNinja Wrote:  I have the same dongle and have no issues with video playback, I do seem to have general network stability issues. I've got a powered USB hub on order though and am hoping this will be a good fix!

I have a powered USB Hub. tried putting the my EdiMax dongle on that rather than attached directly to pi. I'm still having some network issues.

Basically if the network isn't used the dongle seems to drop the connection and not restart it. In addition I have noticed that streaming does buffer every couple of mins. I'm sure that this is a driver issue. I hope that someone is able to solve this as it would be awesome to have the PI working like this.

In short, I don't think that a powered hub is the answer to the network connection issues on the Edimax dongle.



RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - s7mx1 - 07-03-2012 04:20 PM

I know tp link 802.11n router allow you to change that.

http://www.cwnp.com/cwnp_wifi_blog/802-11n-2040-mhz-bss-mode-rules/



(07-03-2012 04:01 PM)NotSoNinja Wrote:  Ok I can confirm no difference with the powered USB hub or with a different power supply on the pi itself so I'm inclined to agree there may be issues with the way the 8192cu.ko driver is working with the Edimax dongle. It's intermittent and may indeed be a case of it powering down if the network is not used. Once video is playing it seems more stable but that might just be my perception.

Incidentally I can't find any router settings with those (20/40Mhz) values?

Any thoughts? and should we maybe start a new thread specifically for this dongle?

Bruce

(07-03-2012 10:45 AM)s7mx1 Wrote:  You need to double check your router settings (20/40 MHz etc) for any buffer issue.

I do remember when I built the driver there was a power management option. I shall receive my Edimax dongle soon thanks to mxpwr and will try see if I could change the default power saving behaviour.

(07-02-2012 11:57 PM)cjdawson Wrote:  
(07-02-2012 05:00 AM)NotSoNinja Wrote:  I have the same dongle and have no issues with video playback, I do seem to have general network stability issues. I've got a powered USB hub on order though and am hoping this will be a good fix!

I have a powered USB Hub. tried putting the my EdiMax dongle on that rather than attached directly to pi. I'm still having some network issues.

Basically if the network isn't used the dongle seems to drop the connection and not restart it. In addition I have noticed that streaming does buffer every couple of mins. I'm sure that this is a driver issue. I hope that someone is able to solve this as it would be awesome to have the PI working like this.

In short, I don't think that a powered hub is the answer to the network connection issues on the Edimax dongle.



RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - gavinlew - 07-03-2012 05:52 PM

Success using a £1.19 Realtek Mini Wireless USB dongle from Ebay;
http://pastebin.com/z9rVycF4


RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - vise - 07-03-2012 08:20 PM

Thanks for your help. Digging a little further it turns out that my dongle uses another chipset since it is rev b3. It uses RT5372.
Found a driver on
http://www.ralinktech.com/en/04_support/support.php?sn=501

Not sure how to install it though. Trying with a fresh re-installed RPi.

(07-03-2012 01:00 PM)s7mx1 Wrote:  Check this http://ubuntuforums.org/showpost.php?p=11806939&postcount=5

Code:
sudo modprobe rt2800usb
sudo bash -c "echo 2001 3c15 > /sys/bus/usb/drivers/rt2800usb/new_id"

(07-03-2012 12:51 PM)vise Wrote:  
(07-02-2012 10:45 PM)s7mx1 Wrote:  
(07-02-2012 10:07 PM)vise Wrote:  http://pastebin.com/EqkWFsuZ


Using D-link DWA-140. Not been able to set it up.

Its using ralink chipset you need to install ralink-firmware. Search forum.

installed the ralink-firmware with apt-get from the non free distro. But to no avail. I will try again tonight...



RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - cjdawson - 07-03-2012 09:11 PM

I just checked my router, it's a D-Link DIR-655.

Channel width is set to 20/40 Mhz Auto.

I tried changing it to 20Mhz (the only other option) and my Pi wouldn't connect wirelessly at all. I switched it back to 20/40 and it connected.

incidently I have the router in channel 9, without the channel scan mode.

I undid the settings and the RPi no longer connects to my network, so maybe there is something else going on here that needs fixing first (btw, I do see the blue led on the dongle)


RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - nadnerb - 07-04-2012 04:10 PM

(07-03-2012 05:52 PM)gavinlew Wrote:  Success using a £1.19 Realtek Mini Wireless USB dongle from Ebay;
http://pastebin.com/z9rVycF4

Have you got a link to this eBay item? What's the streaming speed like?


RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - s7mx1 - 07-04-2012 10:43 PM

For those want to disable power saving

Code:
sudo bash -c "echo options 8192cu rtw_power_mgnt=0 rtw_enusbss=0 > /etc/modprobe.d/8192cu.conf"

reboot your pi after that. This should make your wifi dongle always connected.


RE: Realtek USB WIFI dongle RTL8712U,RTL8192SU,RTL8192CU,RTL8188CU support - cjdawson - 07-05-2012 12:06 AM

I just switched my router to channel 7, and managed to get a connection again. Also applied the power management option. Am now able to access the network, but when I tried to stream a film over smb it failed. btw, I can stream the same film over a wired connection.

with my network set to channel width 20mhz, the network drops out very quickly.
with it set to 20/40, I can get the time to sync properly, but am unable to stream anything.