max resolution is 1888x1048

[tux007]

Hi,

My system is a Pi3 with Rasbian jessy lite and manual installed Xserver + LXDE.

I want to use the Pi on a TV and want to have the resolution 1920x1080p.

I tried some values in the /boot/config.txt

e.g.
hdmi_group=1
hdmi_mode=31


But whatever I do, the max resolution is 1888 x 1048

Whats wrong? Do I need any other driver?

[beta-tester]

for the different HD TVs (1920x1080p 60Hz via HDMI) i found/used, i use these settings my config.txt:

Code: Select all

disable_overscan=1
hdmi_force_hotplug=1
config_hdmi_boost=4
hdmi_drive=2

no hdmi_mode, no hdmi_groupe enties

[drgeoff]

Hi,

My system is a Pi3 with Rasbian jessy lite and manual installed Xserver + LXDE.

I want to use the Pi on a TV and want to have the resolution 1920x1080p.

I tried some values in the /boot/config.txt

e.g.
hdmi_group=1
hdmi_mode=31


But whatever I do, the max resolution is 1888 x 1048

Whats wrong? Do I need any other driver?

Read the 'Overscan' section at https://www.raspberrypi.org/documentati ... -config.md.

[beta-tester]

oops, didn't realized that the size difference is exactly the amount of the overscan pixels.

[tux007]

Yes, the difference is exact the overscan.

With the overscan I can use the full size of the screen, but 1920 x 1080 are not available.

[aBUGSworstnightmare]

Why not use

Code: Select all

hdmi_group=2
hdmi_mode=82

should give you 1080p once overscan is disabled.