desktop environment on loxberry --> resolution issue

[DaniG]

hey guys,

as this is my first post on the forum, I'd like to say "hallo" to everyone.
cool to have such a loxone-friendly place
Unfortunately I don't speach German good enough, thus I'm writing in english. Hopefuly it's not a big problem.


so much for the introduction, let's get to the point.
I've got a problem with desktop environment on loxberry.
Have anyone already configured it successfully on raspberry pi 3b ?

Basically it works, but I can't set proper resolution.
I'm using 24" monitor connected to RPI by HDMI cable. The screen is vertically oriented.

root@loxberry:~# tasksel[*] Debian desktop environment │[*] ... MATE
(tried also gnome, cinamon, xfce,lxde etc. )

I tried several display managers:
gdm3
lightdm
sddm
xdm

few configs from /boot/config.txt:
display_rotate=1
hdmi_group=1
hdmi_mode=16


Once I log in GUI, settings --> display I see "unknown display" and I can't change display resolution.

root@loxberry:/usr/share/xsessions# tvservice -s
state 0xa [HDMI DMT (4) RGB full 4:3], 640x480 @ 60.00Hz, progressive

root@loxberry:/usr/share/xsessions# tvservice -m CEA
Group CEA has 9 modes:
mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive
mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive
mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive
(native) mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive
mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive
mode 18: 720x576 @ 50Hz 16:9, clock:27MHz progressive
mode 19: 1280x720 @ 50Hz 16:9, clock:74MHz progressive
mode 31: 1920x1080 @ 50Hz 16:9, clock:148MHz progressive

root@loxberry:/usr/share/xsessions# tvservice -m DMT
Group DMT has 18 modes:
(prefer) mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive
mode 5: 640x480 @ 72Hz 4:3, clock:31MHz progressive
mode 6: 640x480 @ 75Hz 4:3, clock:31MHz progressive
mode 8: 800x600 @ 56Hz 4:3, clock:36MHz progressive
mode 9: 800x600 @ 60Hz 4:3, clock:40MHz progressive
mode 10: 800x600 @ 72Hz 4:3, clock:50MHz progressive
mode 11: 800x600 @ 75Hz 4:3, clock:49MHz progressive
mode 16: 1024x768 @ 60Hz 4:3, clock:65MHz progressive
mode 17: 1024x768 @ 70Hz 4:3, clock:75MHz progressive
mode 18: 1024x768 @ 75Hz 4:3, clock:78MHz progressive
mode 21: 1152x864 @ 75Hz 4:3, clock:108MHz progressive
mode 28: 1280x800 @ 60Hz 16:10, clock:83MHz progressive
mode 35: 1280x1024 @ 60Hz 5:4, clock:108MHz progressive
mode 36: 1280x1024 @ 75Hz 5:4, clock:135MHz progressive
mode 47: 1440x900 @ 60Hz 16:10, clock:106MHz progressive
mode 58: 1680x1050 @ 60Hz 16:10, clock:146MHz progressive
mode 83: 1600x900 @ 60Hz 16:9, clock:108MHz progressive
mode 85: 1280x720 @ 60Hz 16:9, clock:74MHz progressive


I'm stuck in this place.
If anyone could help, I will be much grateful

[hme0354]

the loxberry has no desktop environment. You can only geht to the GUI through the webbrowser simply with the IP of the loxberry.

[DaniG]

yes, there is a loxberry's GUI available on web browaser.

However, It's also possible to enable desktop environment, which I have done. Basically it's working, and I do see loxberry GUI on my screen. There is just a problem with correct screen resolution in my case.

[hismastersvoice]

yes, there is a loxberry's GUI available on web browaser.

However, It's also possible to enable desktop environment, which I have done. Basically it's working, and I do see loxberry GUI on my screen. There is just a problem with correct screen resolution in my case.

Maybe it's possible, intended by the Loxberry Team.
So don't use things that are not provided, it ends in issues with plugins etc.

[hme0354]

it will maybe work till the next update

[Christian Fenzl]

LoxBerry is Raspberry OS based on Debian Buster.
You may check the Raspberry forum for settings for the X environment.