Sorry to necro this thread, but it is the top result on google for "libreelec force resolution" so I'm going to say that this is valuable real estate, and exactly the right place to put the correct answer. You're not wrong, but a bit terse.
https://wiki.libreelec.tv/config.txt 404's now, so your 'helpful' reply, which is the top result on Google for "libreelec force resolution" isn't very helpful, less than a year later.
https://wiki.libreelec.tv/configuration/config_txt is the link now.
URL's aren't supposed to break, ever. Don't contribute to link rot!
Here's a more helpful reply:
Hey, I was running into the same problem!
I solved it by adding two (2!) lines to my config.txt:
hdmi_group=1
hdmi_mode=16Here's the full config.txt that solved my issue:
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2014 Stephan Raue ([email protected])
# Copyright (C) 2016-present Team LibreELEC (https://libreelec.tv)
################################################################################
# Bootloader configuration - config.txt
################################################################################
################################################################################
# Memory (System/GPU configuration )
################################################################################
# Default GPU memory split - at least 288M is needed for some 4k HEVC files
gpu_mem=320
################################################################################
# For overclocking and various other settings, see:
# https://www.raspberrypi.org/documentation/configuration/config-txt.md
################################################################################
# Set 'force_turbo=1' to disable dynamic overclocking and enable overclocking always.
force_turbo=0
# Force HDMI even if unplugged or powered off
# hdmi_force_hotplug=1
# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1
################################################################################
# End of default configuration
################################################################################
################################################################################
# Display configuration to set display to 1080P@60hz
################################################################################
# See https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
# Your display may differ! Refer to the above link!
# Set HDMI to to 1080P for a TELEVISION, per https://www.raspberrypi.org/documentation/configuration/config-txt/video.md
# There are two options, this assumes you're on a TV. If you're on a monitor,
# Comment the next two lines block, and uncomment the next two lines, instead
hdmi_group=1
hdmi_mode=16
# If you're on a monitor, and the above block doesn't work, comment it out
# and uncomment these lines.
#hdmi_group=2
# hdmi_mode=82
################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txtFlex, on urbandictionary:
Adjective: To stunt or show off used by many rappers in various songs.
I ain't gotta flex, boy I got it, ooh, ooh, ooh, ooh - Rich Homie Quan
by TrapKingzofIslip July 16, 2015