Solved: Intel Graphics - xerror
Installing breakpad exception handler for appid(steam)/version(1353371323_client)
libGL error: failed to load driver: i965
libGL error: Try again with LIBGL_DEBUG=verbose for more details.
SteamUpdateUI: An X Error occurred
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 154
(which is )
Minor opcode of failed request: 26
Serial number of failed request: 24
xerror_handler: X failed, continuing
I am getting that when I start Steam on my laptop with Intel Graphics (I'm using open source drivers). Resolution is 1366*768.
It works fine on another laptop though (that doesn't have Intel Graphics).