I recently purchased a Samsung LC24FG70 monitor, with freesync enabled in the monitor settings and gpu driver(RX 480 on driver version 20.2.2 WHQL) settings, the monitor will skip BIOS during boot up (and the beep sound my motherboard makes before the BIOS screen also disappears), instead, the monitor will only display until windows 10 is loaded to user login display there.
With freesync off however, the motherboard makes the beep sound and monitor displays the BIOS screen during boot up, and everything is normal.
The weird thing is, before this I was using Samsung LC24F390, which is also curved monitor with freesync, I have no problem with freesync enabled, via HDMI as well.
My complete specs
Motherboard: Gigabyte Z170x gaming 5 (BIOS version: F22f(latest))
RAM: 16 GB
GPU: Sapphire nitro+ RX 480 8GB
Connection to monitor: HDMI cable (comes with CFG70 monitor)
OS: windows 10 1909
Here is the link to the video that captures the issue when FreeSync is enabled, and also captures what normal boot up looks like when FreeSync is disabled.
Is this a known issue? if it is, is it fixable via software update? amdmatt
A clearer video