Login screen resolution

English Install/Boot/Login
1

Hello and a happy new year to all!

I’ve a fresh installation of Tumbleweed on a Dell XPS 13". The laptop has a wonderful high resolution monitor of 3200 x 1800. As everything was initially appearing tiny at the beginning, I scaled the desktop with a factor of x2 and now everything looks great. However, my login screen remains tiny. I changed the options in the bootloader with Yast and I scaled my splash screen for grub2 to 1600x1200 but still I haven’t found an option to scale just the login screen. Any ideas?

Info

KDE Plasma: 5.8.4
KDE Framework: 5.29.0
Qt: 5.7.1
Kernel: 4.9.0-2-default

2

You don’t mention the Display Manager your using, but assuming its the default sddm, then within /etc/sddm.conf file:

  • you could set a script (containing an xrandr command for the settings you want) to be run or
  • you could set the DPI in the server arguments to whatever you want

see man sddm.conf for more info

3

i have same screen:
GRUB_GFXPAYLOAD_LINUX=keep in grub (cant remember what this does now!)
ServerArguments=-dpi 180 in sddm
tip: check your tty fonts <ctrl-alt> F1 etc - if they are readable

4

This is a setting for the video mode used for the console framebuffer (maybe only applicable to the kernel vesafb driver??) … its supposed to replace the vga= boot option.

That won’t carry over to the DM greeter screen though –> the greeter runs atop a display server (i.e. X is this case), so you need to config the display server’s res.

5

Apologies, yes it’s sddm. I had tried to set some dpi settings in the past but I messed my fonts globally. I’m a newbie and I had to reinstall everything since I couldn’t get back to the resolution I had. Could you help me out with the exact setting? My current sddm.conf contains:

[Theme]
Current=breeze-openSUSE
CursorTheme=breeze_cursors

[XDisplay]
ServerPath=/usr/bin/X
SessionCommand=/etc/X11/xdm/Xsession
DisplayCommand=/etc/X11/xdm/Xsetup
MinimumVT=7
6

[Theme]
Current=breeze-openSUSE
CursorTheme=breeze_cursors

[XDisplay]
ServerPath=/usr/bin/X
SessionCommand=/etc/X11/xdm/Xsession
DisplayCommand=/etc/X11/xdm/Xsetup
ServerArguments=-dpi 180
MinimumVT=7

[as stated earlier]

7

If I go to Yast Settings -> Fonts the value for Force fonts DPI is set to 192. Does your setting change the value globally or just the login screen?And if something is messed up how do I revert to previous settings?

8

Its global – your passing an argument to the display server.

However, when you log into a user session, your desktop (via the settings YOU select) may introduce its own configuration.

And if something is messed up how do I revert to previous settings?
umm, revert the same change you just made ??? (i.e. delete it or comment it out) :stuck_out_tongue:

I’d imagine that’s the global setting for FONTS on the display server … but these aren’t the droids your looking for

9

That did the trick, thanks!

10

Tried, but DPI scaling doesn’t do the magic.

Problem is that SDDM insists using 3840x2160 screen size with very poor pictures.

Log file: https://pastebin.com/6bw67EQV Monitor data: https://pastebin.com/b9U51WET

How can I configure SDDM to start in 1920x1080? I tried to set GRUB_GFXMODE in /etc/default/grub with no result and now I need some help in changing /etc/X11/xorg.conf.d/50-monitor.conf which contain the #Section “Monitor” of X11 configuration.

Someone can send me a working example of X11 configuration with more than 1 mode listed? The example found so far contains only one resolution.

openSUSE 42.3 (x86_64)
VERSION = 42.3
CODENAME = Malachite

11

Try to enable High DPI scaling in /etc/sddm.conf.

From “man sddm.conf”:

       [X11] section:
...
       EnableHiDPI=
              Enables Qt's automatic HiDPI scaling.  Can be either "true" or
              "false".  Default value is "false".

I.e. try to put this into /etc/sddm.conf:

[X11]
EnableHiDPI=true