Apparently this has gone on for months and its still not fixed.
System (Also contained in the crash logs):
These are identical to the problems I am having. Steam itself actually has several errors.
“X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 20 (X_GetProperty)
Resource id in failed request: 0x0
Serial number of failed request: 9
xerror_handler: X failed, continuing”
These are completely absent in any 520.x driver. Was this just never tested at all? How do you break steam itself?