I have a AMD CPU + AMD dGPU laptop and recently bought a LG FreeSync monitor. I hooked up the monitor to my laptop and got it working mostly fine but I dont get any option to set VRR on my LG monitor.
I am on Gnome and have enabled VRR through gsettings. My laptop display shows the option to toggle VRR (and is currently being used with VRR on) but my LG display does not. The Archwiki says that the option to toggle VRR should show up on every supported display. I have verified from the user manual that FreeSync is supported over both HDMI and DP and from the monitors menu, I have verified that FreeSync is enabled. Is this a bug or I am missing something.
Hardware and Software
- Ryzen 5 5600H with Vega integrated graphics
- Radeon RX 5500M
- Internal Display of 1080p, 144Hz (I have no idea which panel it is)
- LG 24GS60F-B monitor connected over HDMI 2.0
- uBlue main 40 (Fedora Silverblue 40)
- GNOME 46.4
- Kernel version 6.10.3
- Mesa 24.1.5
Thanks in advance for the help.
Along with VRR over HDMI not being well supported, sometimes the monitors own EDID is a little buggy and Linux can’t guarantee VRR will work properly.
I wrote a blog post a while ago on fixing EDIDs, but it was pretty much a guessing game on what to change: https://stevetech.me/posts/force-enable-vrr-edid
I’ve had to do that with both Samsung and MSI monitors so far. If you’d like to post your EDID, I could check it myself with what I know.