ubuntu to switch to lightdm?

[Matthew Garrett]

On Thu, May 12, 2011 at 01:01:24PM -0400, seth vidal wrote:
> On Thu, 2011-05-12 at 17:12 +0100, Matthew Garrett wrote:
> > On Thu, May 12, 2011 at 11:29:18AM -0400, seth vidal wrote:
> > > Which functions is it missing?
> > 
> > Approximately anything that's been implemented in gdm since 2003.
> > 
> 
> I wasn't asking my question for snarky purposes. I was curious. I don't
> think this response was terribly helpful nor excellent.

You're right - I apologise for that. LightDM has no support for 
AccountsService, so it's not going to integrate nicely with sssd. It 
doesn't launch a session and so doesn't run any of the session policy 
handlers like gnome-power-daemon, so instead has to speak to upower 
directly and thus provides inconsistent policy handling. Backlight 
management doesn't exist. It doesn't handle fingerprint or smartcard 
authentication. Accessibility doesn't really exist. It's basically very 
similar in functionality to xdm, except it can shut the machine down, 
has some basic consolekit integration and is way more themable.

I've no problem with lightdm existing as an option for people who want 
it, but I don't think there's any way we could justify switching the 
default.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org