What does the `dmesg` error: "composite sync not supported" mean?
- by M. Tibbits
Question: I see [ 20.473125] composite sync not supported and several such entries when I run dmesg. What do they mean?
Background: I'm trying to debug a problem where my laptop won't suspend. Since acpi seems happy and I can suspend easily from the command line, I've turned to tracking down all boot-up errors/warnings.
So I run dmesg | grep…