#!/usr/bin/env bash

# BenQ PD3220U working modes for Purism Librem 13 v4
# Add higher resolutions via xrandr

# References on issue
# https://forums.puri.sm/t/4k-output-from-librem13-hdmi-port/4441/2

# Create new modes
# NOTE: use `cvt` not `gtf` to get mode settings
xrandr --newmode $(cvt 3840 2160 26 | sed '1d' | cut -d" " -f 2- | sed 's/.00"/hz"/g')
xrandr --newmode $(cvt 2560 1440 30 | sed '1d' | cut -d" " -f 2- | sed 's/.00"/hz"/g')

# TODO: test this non-blanking mode
# cvt -r 3840 2160
# 3840x2160 59.97 Hz (CVT 8.29M9-R) hsync: 133.25 kHz; pclk: 533.00 MHz
# Modeline "3840x2160R"  533.00  3840 3888 3920 4000  2160 2163 2168 2222 +hsync -vsync

# Add modes to outputs
xrandr --addmode HDMI1 3840x2160_26hz
xrandr --addmode HDMI2 3840x2160_26hz
xrandr --addmode DP1 3840x2160_26hz

xrandr --addmode HDMI1 2560x1440_30hz
xrandr --addmode HDMI2 2560x1440_30hz
xrandr --addmode DP1 2560x1440_30hz

# Set monitors
xrandr --output eDP1 --auto --output HDMI1 --mode 3840x2160_26hz --above eDP1
# xrandr --output eDP1 --auto --output HDMI1 --mode 2560x1440_30hz --above eDP1