Hi all,
After the last update, and after I installed some optional packages I can’t open timeshift GUI anymore.
When I click the launcher, nothing happens.
When I execute the same command in terminal this happens:
$ sudo timeshift-launcher
(timeshift-gtk:142613): Gtk-WARNING **: 07:27:42.837: cannot open display:
Why is this happening? I am not remotely logged in using SSH and I am on my own laptop.
I found a work around though:
$ sudo timeshift-gtk
still works normally.
This is normal behaviour and has nothing to do with updates or whatever.
try
sudo timeshift --help
and you can remotely restore create or whatever you want to do with timeshift.
The command in terminal should be:
timeshift-launcher
(without sudo)
because that script will take care of the authentication
or leave you with a message telling why it didn’t work.
Or:
sudo timeshift
which, I guess, will achieve the same result.
Timeshift GUI does not open at all in start menu launcher.
I tried it but same result:
$ timeshift-launcher
(timeshift-gtk:180976): Gtk-WARNING **: 09:55:44.052: cannot open display:
I am not remotely logged in
less /usr/bin/timeshift-launcher
shows the script
It differentiates between whether you are under wayland or “normal” Xorg.
And pkexec is used.
Maybe review what those are and what they might have changed.
I have no further ideas because I do not really understand what the script does or is supposed to do and how and why it may fail to open a display.
Thank you. This is the script, could the problem be pkexec?
#!/usr/bin/env bash
app_command='timeshift-gtk'
if [ "$(id -u)" -eq 0 ]; then
# user is admin
${app_command}
else
# user is not admin
if echo $- | grep "i" >/dev/null 2>&1; then
# script is running in interactive mode
su - -c "${app_command}"
else
# script is running in non-interactive mode
if [ "$XDG_SESSION_TYPE" = "wayland" ] ; then
xhost +SI:localuser:root
pkexec ${app_command}
xhost -SI:localuser:root
xhost
elif command -v pkexec >/dev/null 2>&1; then
pkexec ${app_command}
elif command -v sudo >/dev/null 2>&1; then
x-terminal-emulator -e "sudo ${app_command}"
elif command -v su >/dev/null 2>&1; then
x-terminal-emulator -e "su - -c '${app_command}'"
else
x-terminal-emulator -e "echo 'Command must be run as root user: ${app_command}'"
fi
fi
fi
I know - but as I said:
I do not understand it!
Apparently it gets stuck somewhere here:
because your error message says:
I really cannot help - I just know that I’m NOT using wayland,
so, for me, the script will never enter this part of the code,
and that I do not know where the “localuser” in this command comes from
and I know that it works flawlessly for me.
This error “cannot open display:” seems to originate there.
I am using Wayland, but currently don’t have Timeshift installed. I’m happy to do this to check it out, however.
As a first step, assuming not already tested, does it work if you switch to an X-session?
EDIT:
sudo pacman -Syu timeshift timeshift-autosnap
results in these packages being pulled in:
Packages (5) libgnomekbd-1:3.28.1-1 libxklavier-5.4-5 xapp-2.8.2-1 timeshift-24.01.1-1 timeshift-autosnap-manjaro-0.10-1
Note that timeshift-autosnap doesn’t add any extra packages to the initial four … the clue there might be xapp-2.8.2-1 …?
I’m about to test this to see what happens .
FURTHER EDIT:
Virgin installation of Timeshift (no prior settings/configs to confuse things):
This is one of my “production” machines so I’ll test this again in VirtualBox with Plasma6 in both Wayland and X-session modes later.
Wayland still has a lot of bugs… it will get better after time.
But right now, its not a good experience.
When you changed to much differend settings you never will know where your issue is related.
Its worth it to start your most used application’s after right after every bigger release update.
Maybe uninstall the optional packages and try out again. 