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Ubuntu 14.04.01

According to official documentation, upgrading the hardware enablement stack in Ubuntu to utopic-lts upgrades the kernel and xorg. I only want to upgrade xorg to correct a display problem. The problem is the utopic-lts stack is only supported for 9 months after which I would have to upgrade the HWE stack again.

The question is: is it safe from a security standpoint on a conventional desktop system, to roll back the kernel to the 3.13 series with security updates until 2019 and hold xorg at the utopic-lts for that same duration ie without upgrading the HWE stack every 6-9 months?

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If you are looking to update the x-org display drivers, why not look into installing the oibaf PPA or xorg edgers PPA. I know for sure the oibaf ppa doesn't work with the hardware enablement stack it is meant to work with your existing kernel and just update the x-org video drivers.

I use oibaf with 14.04. Just add the PPA in Software and Updates or run

sudo add-apt-repository ppa:oibaf/graphics-drivers

then, in either case, do:

sudo apt-get update

followed by:

sudo apt-get dist-upgrade

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