I have tested the latest 14.04 as you requested, using both a Live USB and an installation. Alas, the touchscreen still does not work. (The hardware still works with Windows.)
Back in July 2012, Benjamin Tissoires (who used to be on this bug's copy list) gave me a solution that worked. However, time and kernels have moved on, and that solution has long been passed by.
@Christopher Penalver, thank you for your query.
I have tested the latest 14.04 as you requested, using both a Live USB and an installation. Alas, the touchscreen still does not work. (The hardware still works with Windows.)
Back in July 2012, Benjamin Tissoires (who used to be on this bug's copy list) gave me a solution that worked. However, time and kernels have moved on, and that solution has long been passed by.