We have uploaded a new Quantal linux kernel to quantal-proposed. Please note the ABI Bump. The most notable changes are as follows:

* Rebase to upstream stable v3.5.5 (LP: #1000424)
* Updated set of Highbank patches (LP: #1059432)
* Additional Haswell graphics support patches (LP: #1011440)
* Build in CONFIG_X86_PCC_CPUFREQ=y (LP: #1061126)
* Enable TIDSPBRIDGE=m (LP: #1058022)
* ALSA: hda – fix indices on boost volume on Conexant (LP: #1059523)

The full changelog can be seen at: