1024 in Ubuntu 6.10 edgy with 9000mobility. And it's definitely not 4096, only the very newest cards (NVIDIA 8800GTX / Radeon X1900) support bigger than 2048x2048 textures I think.
** Changed in: xserver-xorg-video-ati (Ubuntu) Status: Needs Info => Fix Released -- Incorrect max texture size reported by ATI dri drivers https://launchpad.net/bugs/21893 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs