Comment 19 for bug 1214287

Nicolas Devillers, from my personal experience, regarding backlight bugs where one is forced to use acpi_backlight=vendor to enable it, these reports typically result in upstream making a quirk for the hardware in order to enable the backlight by default. Hence, the best strategy would be to get the quirk merged upstream, in turn pulled downstream and supported in Ubuntu, then refocus on how if the quirk still causes suspend to not work, refocus to this.

Hence, could you please open a new report via a terminal:
ubuntu-bug linux

and feel free to subscribe me to it.