LightDM greeter username in list stuck and can't add others

[eccerr0r]

I seem to have one user stuck in the lightdm greeter. Though I can switch to another user, I can't get it to "save" any other users in the greeter, or delete the first user from the greeter. As this machine was meant for another user, I don't want the first user (ME) to show up on the greeter each time...

Anyone run across this issue before?
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Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?

[Fitzcarraldo]

I've seen this problem, or something similar, with LightDM (GTK Greeter for KDE and GNOME) and SDDM (KDE). I believe the problem is not with LightDM per se. I don't normally use GNOME, so have not looked into it further, but in KDE there is an unresolved bug report about a related problem, which has been left as 'Unconfirmed' by the KDE developers as they are not sure if the problem is due to KDE User Manager or AccountsService. Since I've seen it in GNOME as well as KDE, I suspect AccountsService is the root cause. Anyway, here is how I work around the problem:

1. I created a 96x96 PNG avatar /home/fitzcarraldo/Pictures/fitzcarraldo.png

2. I edited the file /var/lib/AccountsService/users/fitzcarraldo to contain the following (replace 'en_GB.utf8' with your language)

[eccerr0r]

Hmmm... I wish lightdm's gtk-greeter didn't have so much tie-in with Gnome. I actually am using lightdm with gtk-greeter for xfce, which does not have much in terms of tie-in (as in applets) with accountsservice, which will make it tougher to fix :(

But thanks for the tip, I might have to switch to Gnome and see if it can be worked in Gnome; though I do have Gnome installed, I can't use Gnome on this machine because its GPU got blacklisted and thus uses software rendering, making the graphics update horribly slow for everything. Xfce is much faster as it doesn't blacklist the GPU (ATI R200).

For now as a workaround, I disabled the ugly "me" by disabling the save-previous logins and force everyone to type in their logins. I'll see if I can do something the next time I work on this box.

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EDIT:

Thanks, I guess as a better workaround, the suggestion worked. I added a new file into that accountsservice directory with the user's name, and it now shows up. As that directory is completely root owned, not sure what policy will allow new entries to get written there.
_________________
Intel Core i7 2700K/Radeon R7 250/24GB DDR3/256GB SSD
What am I supposed watching?