Ubuntu 14.04: can not connect to the new password-protected wifi network

After upgrading to Ubuntu 14.04 that can not be connected to any new WPA2 WiFi hotspots. . Existing work Here is a pastebin syslog output: http://pastebin.com/QVgmRmXp This is a mistake that is sometimes displayed in a popup window:

(nm-applet:28277): nm-applet-WARNING **: Connection activation failed: (1) Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/34' failed in libnm-glib.

There is a solution, but not quite. When not connected, a file will be created here: / etc / NetworkManager / system-connections / <name of network> If I can edit this file and add a password psk = password to [802-11-wireless-security] section then I can connect. more info: http://pastebin.com/sLrq2s6M

Follow these steps to switch to the new WiFi network

1. Click wi-fi symbol next to battery symbol.
2. Click Edit Connection is at the bottom of the drop-down list.
3. Select the network you want to connect and then click the edit button.
4. Click Wireless-Security tab and enter the network password, save and close.

Wireless drivers for ubuntu and linux are a bit picky when it comes to connecting to routers with certain adjustments, we will recommend the best settings to use. I recommend you change the type of encryption on the router to WPA2 with AES (CCMP) . Be sure not to select the WPA or WPA / WPA2 mixed mode, as it will again need TKIP is not recommended. Go to the network administrator and configure the wireless settings to match the screenshots to get the best results. we also:

sudo ifconfig wlan0 down
sudo modprobe -rfv iwldvm
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi 11n_disable=1
sudo ifconfig wlan0 up

this will be restored when you reboot but if it helps you do, in many cases, can make it permanent by:

echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
sudo modprobe -rfv iwldvm
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifi

restart

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copy PNG from the browser displays a black background instead transparent

Copy PNG from the browser displays a black background instead transparent  

When you copy a transparent PNG image to the clipboard and then paste into Photoshop, Paint, etc. - Transparency becomes black. Is there any solution for this? This is a browser problem, an editing application or a problem with the operating system clipboard? I am using Windows 7 and tested with the latest versions of Chrome and Internet Explorer.

Try saving the file, and then use Open File in Photoshop. AFAIK, the painting does not have the ability to save files png transparency enabled.

Try this: copy the transparent image, paste into MS Word. BELOW copy (or drag / drop) Word and paste into another program target.

I found a paste Visio from Chrome becomes black, but it works correctly in Word and then copy and paste Word properly and transparently in Visio.

(

I used Photoshop to copy semi-transparent textures for some time while prototyping (with the fate of Axure RP).

Now, I've tried using the new API clipboard in HTML 5. I dissected the PNG files that are generated by this process.

If I can use the clipboard (with a rectangular frame) to copy a semi-transparent texture to the browser with the clipboard API, alpha byte FF (completely opaque) is established.

If I use the drag and drop API to copy a "Save As Web" PNG 24 file in the browser, it works as expected and work transparent pixels (alpha and bytes is not required to FF).

Note: Even the thought of Photoshop said to be 24-bit, in fact exports and 8 bits yet (confirmed).

Post the commentDanLugg as an answer, since it is the most convenient IMHO:

1. Right-click on image and Copy Image URL from your browser.
2. In Photoshop choose File-> Open (Ctrl-o) and paste the URL in the file name portion of the dialog box.
   • Photoshop / Windows download URL to open a temporary file.

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