I have seen this to on my Thinkpad X61 Tablet with 965GM, too. I think the reason for the 42px offset is that the mouse cursor is a 42px by 42 px image which is mostly transparent except for the arrow in the upper left corner. When the screen is rotated, the mouse cursor image is not rotated, but the "active pixel" is moved to what is now the upper left corner of it (which only contains transparent pixels).
I think I wanted to document it and took a screenshot using the gnome screenshot utility. It not only didn't show on the screenshot, taking the screenshot also fixed the problem (temporarily) and I forgot to report it. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => Confirmed ** Tags added: gm45 karmic mouse xrandr -- Mouse offset 42px and 90° when in rotated display https://bugs.launchpad.net/bugs/432963 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs