Yep Mathieu, I'd mark it as duplicate of this bug. Same here, Nvidia GTS250 with Nvidia 280.13 drivers. Attached screenshot of corruption.
** Attachment added: "Screen corruption on Nvidia card" https://bugs.launchpad.net/unity/+bug/676166/+attachment/2352465/+files/Captura%2520de%2520pantalla%2520como%25202011-09-04%252011%253A38%253A51.png -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/676166 Title: Screen corruption when resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/676166/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp