Having the same issue here; when screens are set in xinerama mode the launcher and dash on the second screen are no longer transparent.
Seems that it also goes into ubuntu-2d rather than 3d even when choosing the 3d option at login. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libxinerama in Ubuntu. https://bugs.launchpad.net/bugs/973419 Title: ubuntu 12.04 Beta 2: Nvidia Bianary Drivers with Xinerama corupts non GTK3 themes Status in “libxinerama” package in Ubuntu: Confirmed Bug description: I did fresh install of ubuntu 12.04 Beta 2 of 32 bit and 64 bit. For some reason non gtk3 apps are using default gnome look. Not following the appearance of the rest of ubuntu. I have created a new profile and does the same thing. I reinstalled again Did not have the problem untill I installed the nvidia drivers and enabled xinerama. I have 3 monitors. 2 nvidia duel out cards. it appears to be Xinerama doing this and it effects non gtk3 apps. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libxinerama/+bug/973419/+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
