[LightDM] How to change depth of display from 24-bit to 16 or 32?

Ken Stailey kstailey at yahoo.com
Fri Sep 9 04:54:51 PDT 2011

Let me ask this a different way.

How do I launch X from lightdm with a command line option?

I tried adding
xserver-command="X -depth 16"

to /etc/lightdm/lightdm.conf and lightdm would no longer start the X server.


----- Original Message -----
From: Ken Stailey <kstailey at yahoo.com>
To: "lightdm at lists.freedesktop.org" <lightdm at lists.freedesktop.org>
Sent: Thursday, September 8, 2011 9:29 AM
Subject: [LightDM] How to change depth of display from 24-bit to 16 or 32?


I am testing Oneiric on QEMU guests and they default to 24-bit X display.

How can I change that to 24-bit to 16 or 32 for testing?

Current tickets:

Searching shows that X is started by lightdm.

lightdm man page says:

              Command to run X servers

I can't find the lightdm.conf man page or other documentation.  I just want to make lightdm add "-depth 32" to its invocation of X.

How do I do that?

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