On Fri, Jan 26, 2018 at 1:41 PM, InvalidPath <invalid.path(a)gmail.com> wrote:
On Fri, Jan 26, 2018 at 8:24 AM, InvalidPath <invalid.path(a)gmail.com>
wrote:
>
>
> On Fri, Jan 26, 2018 at 12:24 AM, Ed Greshko <ed.greshko(a)greshko.com>
> wrote:
>
>> On 01/26/18 15:01, Joe Zeff wrote:
>> > On 01/25/2018 07:54 PM, InvalidPath wrote:
>> >>
>> >>
>> >> Ok so tonight I tried enabling, and I had to manually rm or mv the
>> existing
>> >> display-manager.service file because enabling another DE would not
>> overwrite it. I
>> >> tried both SDDM and LightDM... neither of which would boot correctly,
>> all got was
>> >> a black screen with no mouse. Alt+F# would not work either. So I'm
>> thinking she
>> >> locked up tight as a drum.
>> >
>> > First you disable the old DM, then enable the new one.
>>
>> systemctl -f enable sddm
>>
>> does what is needed. The "key" is the -f which means
"force"
>>
>> -f, --force
>> When used with enable, overwrite any existing conflicting
>> symlinks.
>>
>>
>> FWIW, I had already given this command to the OP in a different thread.
>>
>>
>> --
>> A motto of mine is: When in doubt, try it out
>>
>>
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>>
>>
> @Ed I know /etc/systemd/system/display-manager.service is a symlink, I
> use zsh so I saw the light blue flashing text in my terminal ;)
>
> And neither works meaning, I tried replacing this symlink with one
> pointing to /usr/lib/systemd/system/sddm.service
> because the command you gave me would not overwrite the symlink.. and I
> even ran it as root but it still refused. No clue why really but honestly I
> didnt care enough to find out. So I manually created a new symlink to teh
> sddm file. Then later on I created one (overwriting the default) to the
> LightDM service file. All to no avail.
>
> And by boot correctly in last nights escapades I mean that this time... I
> did not even get a mouse cursor... just black.
> And I did remove the Gnome bits but this time I did it individually after
> 'sudo --exclude='qemu* libvirt*' remove gnome-<package-name>'
which after
> many of these the GDM was removed, I ended up reinstalling GDM* which in
> turn reinstalled every BLASTED thing that I had just removed beforehand.
> So frustrating.
>
> I did check the contents of /var/lib/sddm/state.conf and it references
> gnome-desktop of all things! Why is it so bloody hard to change the
> Display Managers up in here??
>
> @Joe So are you meaning that I should mask or delete the symlink to my
> current DM, maybe reboot then create one for teh other.. like SDDM or
> LightDM?
>
So tonight, I guess I should try again.. maybe remove and reinstall sddm
and I'd firstly think that installing a few other DM's would be a good idea
but then I'm left with so many other dependencies that I'd be in the same
boat as now. So am I correct in thinking that reinstalling sddm, I will
retry the enable command and see if the results are different this time..
and if greeted with a black screen then journalctl should be my friend.. Oh
and also check that state.conf file to make sure it's not still pointing to
GDM... Is this a solid plan?
Update: I just discovered this:
Enable the systemd service for your new display manager using systemctl
enable displaymanager.service -f
If this doesn’t work, Manjaro users can try disabling the previous display
manager first:
sudo systemctl stop gdm
sudo systemctl disable gdm
sudo systemctl enable lightdm.service
sudo systemctl start lightdm
while on Arch Linux you might have to remove the
/etc/systemd/system/default.target file, and create a
display-manager.service file in the /etc/systemd/system directory. This new
file should be a symlink to your new display manager’s service file in
/usr/lib/systemd/system/.
The advice in this section applies to new versions of Fedora as well (from
Fedora 14 onwards). You can also change your display manager on Fedora with
a practical tool called system-switch-displaymanager
<
https://apps.fedoraproject.org/packages/system-switch-displaymanager>.
So I reinstalled sddm, and that system-switch-displaymanager.. seems to
have done the same things that you guys have mentioned just I guess in a
different method. It returned:
14:24:23 bhart@Vostok /etc/systemd/system 11s
$ system-switch-displaymanager sddm
Created symlink /etc/systemd/system/display-manager.service →
/usr/lib/systemd/system/sddm.service.
Your default graphical display manager has successfully been switched.
So I'll find out if my DM was actually switched here in a couple hours.