[compiz] Nvidia performance bug and vterm switching bug

[Vasek Potocek]

> I have turned on the DEBUG macro and found my terminal is filled by a flood
> of messages like this:
>> X Error of failed request: BadValue (integer parameter out of range 
>> for operation)
>>   Major opcode of failed request:  128
>>   Minor opcode of failed request:  16
>>   Resource id in failed request:  0x20de
> every now and then when direct rendering is used. However, I can't tell
> where such message comes from, because the minor opcode of 16 doesn't
> mean anything useful: X_GLXVendorPrivate.
Edit: it comes from bindTexImage call in enableTexture function, texture.c, line 358.