Actually this bug is trivially reproducible here by saying
$ synergyc --name falx --no-daemon 192.168.1.12
2014-05-12T10:56:19 INFO: Synergy 1.4.12 Client on Linux 3.14.0-031400-generic #201403310035 SMP Mon Mar 31 04:36:23 UTC 2014 x86_64
/build/buildd/synergy-1.4.12/src/lib/synergy/CClientApp.cpp,164
2014-05-12T10:56:19 DEBUG: XOpenDisplay(":0")
/build/buildd/synergy-1.4.12/src/lib/platform/CXWindowsScreen.cpp,912
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 53 (X_CreatePixmap)
Value in failed request: 0x0
Serial number of failed request: 16
Current serial number in output stream: 17
Actually this bug is trivially reproducible here by saying
$ synergyc --name falx --no-daemon 192.168.1.12 031400- generic #201403310035 SMP Mon Mar 31 04:36:23 UTC 2014 x86_64 buildd/ synergy- 1.4.12/ src/lib/ synergy/ CClientApp. cpp,164 buildd/ synergy- 1.4.12/ src/lib/ platform/ CXWindowsScreen .cpp,912
2014-05-12T10:56:19 INFO: Synergy 1.4.12 Client on Linux 3.14.0-
/build/
2014-05-12T10:56:19 DEBUG: XOpenDisplay(":0")
/build/
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 53 (X_CreatePixmap)
Value in failed request: 0x0
Serial number of failed request: 16
Current serial number in output stream: 17
$