I'm seeing this problem too. nvclock and other programs report the temperature of all the GPU's correctly but the sensors applet seems broken.
The sensors applet shows zero degrees for the second GPU. GPU0CoreTemp is correct while GPU1CoreTemp is always zero. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/736579 Title: 2nd GPU card temp incorrectly reported in sensors-applet -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs