Determine if X recognized new monitors

[plazmakeks]

Hi,

I got an issue:

I got a udev rule which launches a go routine when a monitor was connected/disconnected. That routine is using xgb. I configure the monitors depening on how they are (dis)connected. The udev rule works reliable in determining changes on the monitor setup. The problem is, that X or xgb needs some time to realize the change. Means: when my go routine is launched and checks for connected monitors it usually delivers the pre-plug/unplug state. I tried to wait for it with xgb.Sync but it didn't help. I tried to wait for events with xgb.Conn.WaitForEvent or xgb.Conn.PollForEvent but those never got me any events. Any recommendation how to solve that?

[BurntSushi]

I have no idea, sorry. Your best bet is to find some software that does this already and look at its source code to see how they handle it.