Comment 16 for bug 1297464

Michael Murphy, regarding your comments https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1297464/comments/15 :
>"I have two systems with Radeon HD 6850 graphics card, and one off-site with a Richland APU. All have been affected since the early RCs of kernel 3.13 in December and still affected today."

This report will only focus on the hardware noted in the Bug Description. If you have other hardware having issues, please file one bug report per machine via a terminal:
ubuntu-bug linux

Despite this, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-3.15-rc2

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.