Changing the resolution of the greeter and the plymouth screen

[amhndu]

Also, I tried switching to a different terminal now (C-A-F<n>), they are now in the 1024x768 resolution (my preferred resolution).
I'm guessing, this is due to the edited grub file, so, now it looks like I'll have to look lightdm configurations for the greeter.

[cariboo]

It might help if you told us what type of display you are using. I have an older Samsung 32" LCD that would only do 720p when I used it for a TV. I can force the resolution to 1920X1080, but the display is all but unusable until I set the font size to 32px+, which defeats the purpose of having a high resolution display. It's native resolution using the vga port is 1360X720, and that's what I leave it set at.

[amhndu]

It's an old CRT monitor, xrandr output :

Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 270mm x 200mm
   1024x768       60.0* 
   1024x768i      87.1  
   832x624        74.6  
   800x600        85.1     72.2     75.0     60.3     56.2  
   848x480        60.0  
   640x480        85.0     75.0     72.8     66.7     60.0     59.9  
   720x405        70.0  
   720x400        70.1  
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Please tell me if there's anything else I can provide

[Bashing-om]

amhndu; et all ; Humm ....

Presently donning my "learning cap"/ let us hope it does not become a "dunce cap" .
I do have an lubuntu install on this box, and later I will reboot into it and see what I can learn to add to this thread.
It do look like - to me - that what is set for the resolution should be what is being used . Let's find out at what point lightdm starts it's greeter. Grub is set to "1024x768", xrandr says the display is set to same, so where could the disparity be ?

Also, I tried switching to a different terminal now (C-A-F<n>), they are now in the 1024x768 resolution (my preferred resolution).
I'm guessing, this is due to the edited grub file, so, now it looks like I'll have to look lightdm configurations for the greeter.

inquiring minds want to know

[amhndu]

xrandr says the display is set to same

Note that this is what I get after I log in, that is, this is set up by lxsession/lxrandr much later than when lightdm has started

This just got even more confusing, now the terminals are in 1024x768i resolution . So, I think I did something which caused the change in resolution, but since it didn't effect the greeter, I probably reverted it back
Now, I'll try and isolate whatever configuration causes the change in terminals' resolution.

EDIT: I made lightdm.conf file in /etc/lightdm/ with the following contents

[SeatDefaults]
display-setup-script=/etc/lightdm/lightdmxrandr

Where lightdmxrandr is a shell script which changes the resolution to 1024x768 with xrandr.
After saving it and rebooting .. lightdm didn't like it and didn't load the login screen ...
It loaded up properly when I removed the file

EDIT2 : Tried adding the display-setup-script line to 60-lightdm-gtk-greeter.conf and 20-lubuntu.conf in /usr/share/lightdm/lightdm.conf.d/, both failed with some "drm checksum error message"

(on a different note, I see that the "fonts" in the forum text insert box are all "Mircosoft" fonts ?? It doesn't even have the "Ubuntu" family [but of course the forum is in that font])

[Bashing-om]

amhndu; HoKay ;

I am back, booting from a 14.04 lubuntu install with a bit more ammo .

A list of the files in the target directory:

sysop2@lubie1404:~$ ls -al /etc/lightdm
total 32
drwxr-xr-x   3 root root  4096 Jun 12 16:01 .
drwxr-xr-x 129 root root 12288 Jun 12 16:02 ..
-rw-r--r--   1 root root    73 Dec  1  2013 lightdm.conf
drwxr-xr-x   2 root root  4096 Jun  9  2014 lightdm.conf.d
lrwxrwxrwx   1 root root    55 Sep 23  2012 lightdm-gtk-greeter.conf -> /etc/alternatives/lightdm-gtk-greeter-config-derivative
-rw-r--r--   1 root root  1317 Mar 13  2014 lightdm-gtk-greeter-ubuntu.conf
-rw-r--r--   1 root root   452 Mar 11 17:32 users.conf
sysop2@lubie1404:~$

And what a default /etc/lightdm/lightdm.conf file looks like:

sysop2@lubie1404:~$ cat /etc/lightdm/lightdm.conf

[SeatDefaults]
greeter-session=lightdm-gtk-greeter
user-session=Lubuntu
sysop2@lubie1404:~$

Let's go back to as close to default as possible and take off again.

I too think there should be a simple solution

[amhndu]

Hey all,
I have something embarrassing to confess, the reason lightdm didn't start when I edited the .conf files the last was that ...
My display setup script contained invalid arguments for xrandr
When I made a lighdm.conf file as exactly as Bahing-Om's WITH the display-setup-script line, lightdm didn't start, but when I removed that line with just the defaults, it started, prompting me to test the command in display-setup-script. (I really thought that I had tested it previously)
Then, I corrected it and added the display-setup-script line to lightdm.conf, the greeter was in the correct resolution.
Now, I have the display-setup-script line at the end of 20-lubuntu.conf in /usr/share/lightdm/lightdm.conf.d/ and everything is good.

Thanks to all who have helped and special thanks to Bashing-Om for sticking up even after a week of the original post.
Marked as [SOLVED]

[Bashing-om]

amhndu; Outstanding !

It is you who do good work and spread the knowledge.

look forward to our next

adventure