I have two monitors, one with the G-Sync support, one without. Sometime ago, when the driver updated to 349.16, I found out that G-Sync started to work perfectly with my setup, even with Sync to VBlank disabled (I always had it disabled). I did have to use a compositor (compton) for it to work though, without the compositor the monitor’s built-in menu reports no G-Sync and the nvidia-settings G-Sync indicator isn’t shown, even when launching games like Half-Life in full-screen.
Today I updated to 352.09 only to find out that G-Sync stopped working. Without the compositor the same problem occurs (no indicator, nothing), with the compositor the indicator does show but always prints NORMAL (and the monitor’s menu shows that G-Sync is inactive as well). I tried disabling the second monitor through the nvidia-settings and nothing changed. I tried messing with the vsync settings in the compositor and the game (Half-Life), enabling or disabling Sync to VBlank, starting the game in fullscreen mode (with one or two monitors active), nothing helps.
When I’m using two monitors I’m running them as a single X screen. I’m using the Awesome WM.
So why did it break and is there a way to fix it?
Thanks in advance.