Hello Arkady, the bug is located at the network-manager-applet package, because it is handling the TLS settings applet.
Here is a workaround to see all files in the file selector. This is not a complete fix. 1. Make sure you can download source packages. See more information here: http://askubuntu.com/questions/28372/how-do-i-get-and-modify-the- source-code-of-packages-installed-through-apt-get 2. Open commandline, create an empty folder and 'cd' to it. 3. Get the source code of the package: apt-get source network-manager-gnome 4. Apply the patch attached to this comment, first download the patch file to current folder, then: patch < file-selector-workaround.patch 5. Get build dependencies for this package: sudo apt-get build-dep network-manager-gnome 6. Build package with workaround: cd network-manager-applet-1.2.0 dpkg-buildpackage -rfakeroot -uc -b 7. Install modified package: cd .. sudo dpkg -i network-manager-gnome_1.2.0-0ubuntu0.16.04.1_amd64.deb 8. Reboot and now the file selector will show the key files for wifi and wired configuration. ** Patch added: "workaround patch" https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1575614/+attachment/4665910/+files/file-selector-workaround.patch -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/1575614 Title: Can't select secret key for TLS auth on wired or wifi connection Status in network-manager-applet package in Ubuntu: Confirmed Bug description: Ubuntu 16.04 LTS x64 Network Manager: 1.1.93-0ubuntu4 STR: 1. Click on Connections icon in status panel 2. Click on Edit connections 3. Select Wired connection 4. Go to 802.1x tab 5. Check the Use 802.1X checkbox 6. Choose TLS 7. Click on Secret key button 8. In file chooser navigate to the folder where key is located and try to select key file - the list is empty For wifi connection: 1. Click on Connections icon in status panel 2. Click on Edit connections 3. Select Wi-Fi connection 4. Go to Wi-Fi Security tab 5. Select WPA & WPA2 Enterprise in the drop-down list 6. Choose TLS 7. Click on (None) next to Private key 8. In file chooser navigate to the folder where key is located and try to select key file - the list is empty I'm absolutely sure that private key file exists in the folder and is correct. As a workaround TLS can be configured manually using wpa_supplicant. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1575614/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

