[gentoo-user] Anybody using lightdm?

[gentoo-user] Anybody using lightdm?

[Grant]

Has anyone set up lightdm?  I'm using it with the default config file
but I get a black screen with no error in Xorg.0.log.  gdm works fine.
 Any ideas?

- Grant

Re: [gentoo-user] Anybody using lightdm?

[Michael Mol]

On Sat, Feb 18, 2012 at 4:11 PM, Grant <emailgrant@gmail.com> wrote:
> Has anyone set up lightdm?  I'm using it with the default config file
> but I get a black screen with no error in Xorg.0.log.  gdm works fine.
>  Any ideas?

I'm not using lightdm, but my understanding is that it's as minimalist
as you can get while still technically using a display manager. Check
into its configuration in /etc/config, etc. Find out exactly what it's
using (launching) for an xinitrc.

Also check out ~/.X*, and see if there are any user-local errors or logs of use.

-- 
:wq

[gentoo-user] Re: Anybody using lightdm?

[Grant]

> Has anyone set up lightdm?  I'm using it with the default config file
> but I get a black screen with no error in Xorg.0.log.  gdm works fine.
>  Any ideas?
>
> - Grant

I switched to SLiM and I like it but I wish there were a way to
restart and/or shutdown from the login screen.  I had to emerge xterm
to make it work BTW.

- Grant

Re: [gentoo-user] Anybody using lightdm?

[Grant]

>> Has anyone set up lightdm?  I'm using it with the default config file
>> but I get a black screen with no error in Xorg.0.log.  gdm works fine.
>>  Any ideas?
>
> I'm not using lightdm, but my understanding is that it's as minimalist
> as you can get while still technically using a display manager. Check
> into its configuration in /etc/config, etc. Find out exactly what it's
> using (launching) for an xinitrc.
>
> Also check out ~/.X*, and see if there are any user-local errors or logs of use.

Thanks, got it working by recompiling udev as mentioned in the last
comment here:

http://hwoarang.silverarrow.org/2011/09/18/lightdm-on-gentoo-artwork-needed/

- Grant

Re: [gentoo-user] Re: Anybody using lightdm?

[Michael Cook]

On 02/18/2012 05:15 PM, Grant wrote:
>> Has anyone set up lightdm?  I'm using it with the default config
>> file but I get a black screen with no error in Xorg.0.log.  gdm
>> works fine. Any ideas?
>> 
>> - Grant
> 
> I switched to SLiM and I like it but I wish there were a way to 
> restart and/or shutdown from the login screen.  I had to emerge
> xterm to make it work BTW.
> 
> - Grant
> 
> 
You can type reboot or shutdown for the user then the root password
and it will do as you requested.

Re: [gentoo-user] Re: Anybody using lightdm?

[Grant]

>>> Has anyone set up lightdm?  I'm using it with the default config
>>> file but I get a black screen with no error in Xorg.0.log.  gdm
>>> works fine. Any ideas?
>>>
>>> - Grant
>>
>> I switched to SLiM and I like it but I wish there were a way to
>> restart and/or shutdown from the login screen.  I had to emerge
>> xterm to make it work BTW.
>>
>> - Grant
>>
>>
> You can type reboot or shutdown for the user then the root password
> and it will do as you requested.

The problem there is sharing the root password on multi-user systems.

- Grant

Re: [gentoo-user] Re: Anybody using lightdm?

[Alan McKinnon]

On Sat, 18 Feb 2012 16:30:23 -0800
Grant <emailgrant@gmail.com> wrote:

> >>> Has anyone set up lightdm?  I'm using it with the default config
> >>> file but I get a black screen with no error in Xorg.0.log.  gdm
> >>> works fine. Any ideas?
> >>>
> >>> - Grant
> >>
> >> I switched to SLiM and I like it but I wish there were a way to
> >> restart and/or shutdown from the login screen.  I had to emerge
> >> xterm to make it work BTW.
> >>
> >> - Grant
> >>
> >>
> > You can type reboot or shutdown for the user then the root password
> > and it will do as you requested.
> 
> The problem there is sharing the root password on multi-user systems.
> 
> - Grant
> 

do your $MAGIC in /etc/sudoers so users can run

sudo shutdown -h now

and no need to share root passwords

-- 
Alan McKinnnon
alan.mckinnon@gmail.com

Re: [gentoo-user] Re: Anybody using lightdm?

[Mick]

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On Sunday 19 Feb 2012 00:30:23 Grant wrote:
> >>> Has anyone set up lightdm?  I'm using it with the default config
> >>> file but I get a black screen with no error in Xorg.0.log.  gdm
> >>> works fine. Any ideas?
> >>> 
> >>> - Grant
> >> 
> >> I switched to SLiM and I like it but I wish there were a way to
> >> restart and/or shutdown from the login screen.  I had to emerge
> >> xterm to make it work BTW.
> >> 
> >> - Grant
> > 
> > You can type reboot or shutdown for the user then the root password
> > and it will do as you requested.
> 
> The problem there is sharing the root password on multi-user systems.

Unless you allow shutdown in sudo for your user group?

-- 
Regards,
Mick

[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 198 bytes --]

Re: [gentoo-user] Re: Anybody using lightdm?

[Grant]

>> >>> Has anyone set up lightdm?  I'm using it with the default config
>> >>> file but I get a black screen with no error in Xorg.0.log.  gdm
>> >>> works fine. Any ideas?
>> >>>
>> >>> - Grant
>> >>
>> >> I switched to SLiM and I like it but I wish there were a way to
>> >> restart and/or shutdown from the login screen.  I had to emerge
>> >> xterm to make it work BTW.
>> >>
>> >> - Grant
>> >>
>> >>
>> > You can type reboot or shutdown for the user then the root password
>> > and it will do as you requested.
>>
>> The problem there is sharing the root password on multi-user systems.
>>
>> - Grant
>>
>
> do your $MAGIC in /etc/sudoers so users can run
>
> sudo shutdown -h now
>
> and no need to share root passwords

Yes, but I've been in the situation with a remote machine where GDM
will load but XFCE4 won't and I need the machine rebooted manually by
a local user.  There's always the power button but that killed a
machine of mine just a few days ago.  SLiM will reboot or shutdown if
you enter reboot or shutdown for the username and the root password,
but it doesn't seem to work if you use the password of a user with
rights to reboot or shutdown.  I just tried it.

- Grant

Re: [gentoo-user] Re: Anybody using lightdm?

[Stefan G. Weichinger]

Am 2012-02-18 23:15, schrieb Grant:

> I switched to SLiM and I like it but I wish there were a way to
> restart and/or shutdown from the login screen.  I had to emerge xterm
> to make it work BTW.

Could someone point out what is bad about gdm?
Does it matter that much?

What advantages does it have to use lightdm/slim/something else?

Does it matter on modern powerful machines? Less packages to merge?

Re: [gentoo-user] Re: Anybody using lightdm?

[Grant]

>> I switched to SLiM and I like it but I wish there were a way to
>> restart and/or shutdown from the login screen.  I had to emerge xterm
>> to make it work BTW.
>
> Could someone point out what is bad about gdm?
> Does it matter that much?
>
> What advantages does it have to use lightdm/slim/something else?
>
> Does it matter on modern powerful machines? Less packages to merge?

I'm interested to hear anyone else's opinion on this.  I thought it
came down to fewer dependencies, slightly lower use of system
resources, and a simpler and less cluttered interface.

- Grant

Re: [gentoo-user] Re: Anybody using lightdm?

[Michael Mol]

On Sun, Feb 19, 2012 at 4:00 PM, Stefan G. Weichinger <lists@xunil.at> wrote:
> Am 2012-02-18 23:15, schrieb Grant:
>
>> I switched to SLiM and I like it but I wish there were a way to
>> restart and/or shutdown from the login screen.  I had to emerge xterm
>> to make it work BTW.
>
> Could someone point out what is bad about gdm?
> Does it matter that much?
>
> What advantages does it have to use lightdm/slim/something else?
>
> Does it matter on modern powerful machines? Less packages to merge?

More dependencies, more moving parts, more stuff to build, more stuff
to break. And that's just a principle-driven overview. I don't have
any systems not running slim right now, so I can't do a direct
comparison without installing and configuring gdm.

The only significant use I might require gdm for would be XDMCP
support...slim doesn't appear to support that.

-- 
:wq

Re: [gentoo-user] Re: Anybody using lightdm?

[Grant]

>>> I switched to SLiM and I like it but I wish there were a way to
>>> restart and/or shutdown from the login screen.  I had to emerge xterm
>>> to make it work BTW.
>>
>> Could someone point out what is bad about gdm?
>> Does it matter that much?
>>
>> What advantages does it have to use lightdm/slim/something else?
>>
>> Does it matter on modern powerful machines? Less packages to merge?
>
> More dependencies, more moving parts, more stuff to build, more stuff
> to break. And that's just a principle-driven overview. I don't have
> any systems not running slim right now, so I can't do a direct
> comparison without installing and configuring gdm.
>
> The only significant use I might require gdm for would be XDMCP
> support...slim doesn't appear to support that.

Same with multi-seat.  GDM and lightdm both support it but slim doesn't AFAIK.

- Grant

Re: [gentoo-user] Re: Anybody using lightdm?

[Jorge Martínez López]

Matthew Garret, a Gnome developer is not a big fan of lightdm:

http://www.advogato.org/person/mjg59/diary/296.html

Cheers,
-- 
Jorge Martínez López <jorgeml@gmail.com> http://www.jorgeml.net
      Google Talk / XMPP: jorgeml@gmail.com

Re: [gentoo-user] Re: Anybody using lightdm?

[Stefan G. Weichinger]

Am 2012-02-20 19:08, schrieb Jorge Martínez López:
> Matthew Garret, a Gnome developer is not a big fan of lightdm:
> 
> http://www.advogato.org/person/mjg59/diary/296.html

good read, thanks ;-)

Re: [gentoo-user] Anybody using lightdm?

[Grant]

>>> Has anyone set up lightdm?  I'm using it with the default config file
>>> but I get a black screen with no error in Xorg.0.log.  gdm works fine.
>>>  Any ideas?
>>
>> I'm not using lightdm, but my understanding is that it's as minimalist
>> as you can get while still technically using a display manager. Check
>> into its configuration in /etc/config, etc. Find out exactly what it's
>> using (launching) for an xinitrc.
>>
>> Also check out ~/.X*, and see if there are any user-local errors or logs of use.
>
> Thanks, got it working by recompiling udev as mentioned in the last
> comment here:
>
> http://hwoarang.silverarrow.org/2011/09/18/lightdm-on-gentoo-artwork-needed/
>
> - Grant

It stopped working.  I have the same problem described here:

https://bugs.gentoo.org/show_bug.cgi?id=395327

It hangs with this from /var/log/lightdm/lightdm.log:

DEBUG: Waiting for ready signal from X server :0

It does this on 2 of my systems but succeeds on the other.  The next
lines on the successful system are:

DEBUG: Acquired bus name org.freedesktop.DisplayManager
DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0

The fix described in the bug is to add dbus to use in /etc/init.d/xdm
but dbus is already in there.  dbus is currently started on all 3
systems.  Any ideas?

- Grant

Re: [gentoo-user] Anybody using lightdm?

[Grant]

>>>> Has anyone set up lightdm?  I'm using it with the default config file
>>>> but I get a black screen with no error in Xorg.0.log.  gdm works fine.
>>>>  Any ideas?
>>>
>>> I'm not using lightdm, but my understanding is that it's as minimalist
>>> as you can get while still technically using a display manager. Check
>>> into its configuration in /etc/config, etc. Find out exactly what it's
>>> using (launching) for an xinitrc.
>>>
>>> Also check out ~/.X*, and see if there are any user-local errors or logs of use.
>>
>> Thanks, got it working by recompiling udev as mentioned in the last
>> comment here:
>>
>> http://hwoarang.silverarrow.org/2011/09/18/lightdm-on-gentoo-artwork-needed/
>>
>> - Grant
>
> It stopped working.  I have the same problem described here:
>
> https://bugs.gentoo.org/show_bug.cgi?id=395327
>
> It hangs with this from /var/log/lightdm/lightdm.log:
>
> DEBUG: Waiting for ready signal from X server :0
>
> It does this on 2 of my systems but succeeds on the other.  The next
> lines on the successful system are:
>
> DEBUG: Acquired bus name org.freedesktop.DisplayManager
> DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
>
> The fix described in the bug is to add dbus to use in /etc/init.d/xdm
> but dbus is already in there.  dbus is currently started on all 3
> systems.  Any ideas?
>
> - Grant

This definitely has something to do with dbus but I can't put my
finger on it.  I added dbus to the boot runlevel and lightdm came up
fine after a reboot.  I removed dbus from all runlevels and rebooted
it's still working.  I don't get it.  I rebooted many times this
morning and it never worked once.

- Grant

Re: [gentoo-user] Anybody using lightdm?

[Grant]

[snip]
>> It stopped working.  I have the same problem described here:
>>
>> https://bugs.gentoo.org/show_bug.cgi?id=395327
>>
>> It hangs with this from /var/log/lightdm/lightdm.log:
>>
>> DEBUG: Waiting for ready signal from X server :0
>>
>> It does this on 2 of my systems but succeeds on the other.  The next
>> lines on the successful system are:
>>
>> DEBUG: Acquired bus name org.freedesktop.DisplayManager
>> DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
>>
>> The fix described in the bug is to add dbus to use in /etc/init.d/xdm
>> but dbus is already in there.  dbus is currently started on all 3
>> systems.  Any ideas?
>>
>> - Grant
>
> This definitely has something to do with dbus but I can't put my
> finger on it.  I added dbus to the boot runlevel and lightdm came up
> fine after a reboot.  I removed dbus from all runlevels and rebooted
> it's still working.  I don't get it.  I rebooted many times this
> morning and it never worked once.
>
> - Grant

I'm sorry for cramming up the airwaves with this.  lightdm works with
dbus in the default runlevel too.  I think I just need to make sure
dbus starts before xdm.  Can anyone suggest an /etc/init.d/xdm change
for this and should I file a bug?

- Grant