After restarting gnome-shell, when my screen is locked I can no longer enter my password. When I type a character into the password field the character is erased immediately and the message "Authentication Error" is visible all the time (even before starting to type anything).
This is Ubuntu 18.04, Gnome shell 3.28
When I run the live image (Ubuntu 18.04), it shows the root filesystem being an overlay with the squashfs image (/cdrom/casper/filesystem.squashfs, containing the main data) as lower layer, and /cow/upper as upper layer. But /cow is not visible anymore as it is hidden by the overlay mounted on root.
Where (on what device) does the upper layer live? Is it accessible somewhere or is it a memory-only device?
My /etc/resolv.conf (and also /run/systemd/resolve/resolv.conf) contain a search entry for wifi.ns.nl that I did not put there and do not want there. It seems related to a problem I have now in that I cannot resolve some web addresses. The resolv.conf files are managed by systemd-resolved and tell me not to edit them manually. If I do that anyway nothing changes and if I restart sytsemd-resolvd it changes the resolv.conf files back to their original state.
The search wifi.ns.nl line probably appeared after I tried to connect to a captive wifi network run by ns.nl. After connecting to the wifi, but before accepting the terms on the web portal, I tried to connect with SSH to a server. That didn't work, and accessing any other website through the wifi also did not work. When I came home and connected to my home network, connecting to the server I wanted to connect to still didn't work, and systemd-resolve now says resolve call failed: No appropriate name servers or networks for name found for that server and for *.wifi.ns.nl. (I can still connect to the server using the ip address, and I can resolve the name using dig on a remote dns server, so the problem is only my local DNS resolver.)
If I do systemd-resolve --status it also tells me 'wifi.ns.nl' is one of my global DNS Domains.
Apparently something somewhere has remembered some setting probably related to the captive wifi network and wifi.ns.nl. I've tried restarting systemd-resolved, networking, network-manager, but the search entry is still there.
(I also did a sudo grep -R wifi.ns.nl /etc, it doesn't find 'wifi.ns.nl' anywhere else under /etc other than the resolv.conf file)
How can I remove that search entry, other than rebooting my system?
I want to use the real ssh-agent instead of gnome-keyring in xubuntu. I followed the steps from http://dtek.net/blog/how-stop-gnome-keyring-clobbering-opensshs-ssh-agent-ubuntu-1204, but gnome keyring still registers itself as ssh-agent. I still want to keep using gnome-keyring for other passwords
I have a Asus EeePC with a GMA500 video card. I followed the instructions on https://wiki.ubuntu.com/HardwareSupportComponentsVideoCardsPoulsbo/, which made the netbook boot correctly. Without any xorg.conf file, Xorg uses the VESA driver, which is quite slow. Manually specifying fbdev as driver in xorg.conf also works. Which one should I use? Are there any other drivers for Xorg that do better at 2d accelleration (since the kernel driver doesn't support 3d acceleration)?