Hi, thank you for your reply. The 'big enough viewport' test ... errr, don't do it yourself, since there *are* several annoying points if you make the viewport-dimensions big enough. Ok, Janek, you're right, so it's not Xinerama itself.
Now I doubt type conversion somewhere. Since librep integer is 30 bits or 62 bits, it must be C, but this time I carefully confirmed C function find-head() is ok. So it's somewhere else. Regards, Teika (Teika kazura)
