Had this bug on Unity a long while ago. Now have this bug whilst trying out Cinnamon on Mint 15.
I have ATI Radeon Xpress 1250 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/751828 Title: Corrupt (stripes) panel shadow texture Status in Unity: Confirmed Status in “mesa” package in Ubuntu: Confirmed Status in “unity” package in Ubuntu: Confirmed Status in “xserver-xorg-video-ati” package in Ubuntu: Confirmed Status in Debian GNU/Linux: New Bug description: OpenGL rendered textures and text are often striped. E.g panel shadow, unity dialog's bottom border, separators in panel, text in Extreme Tux Racer. Example image shows the faulty panel shadow. The bug has existed since the start of 11.04 (and was also present in 10.10 with extreme tux racer). lspci -v | grep VGA 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon Xpress 1250 (prog-if 00 [VGA controller]) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/751828/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp