https://bugs.freedesktop.org/show_bug.cgi?id=108322
--- Comment #12 from bmilreu@gmail.com --- Created custom modes and forced it into xrandr. 75hz flickers, but 73hz is working fine it seems. This is on last amd-drm-next-staging
~ >>> gtf 1920 1080 73
# 1920x1080 @ 73.00 Hz (GTF) hsync: 82.20 kHz; pclk: 214.37 MHz Modeline "1920x1080_73.00" 214.37 1920 2056 2264 2608 1080 1081 1084 1126 -HSync +Vsync ~ >>> xrandr --newmode "1920x1080_73.00" 214.37 1920 2056 2264 2608 1080 1081 1084 1126 -HSync +Vsync [130] ~ >>> xrandr --addmode DisplayPort-0 "1920x1080_73.00" ~ >>> xrandr --output DisplayPort-0 --mode "1920x1080_73.00"
Will keep it like this for now and test it in games, but in kde plasma/chromium 73hz is smooth as silk it seems. Another thing I noticed is gtf generates higher pixel clocks than the ones from my monitor (edid?). You can compare above result with the attached xorg log.