Why ubuntu no longer support SIS motherboard acpi driver since ubuntu 10.10?

Asked by prcxjb on 2012-10-13

ubuntu 10.04 with a kernel 2.6 or lower works well on SIS motherboard,but SIS motherboard Users with ubuntu 10.10 or higher have to add an "acpi=off" to the grub line to boot it.
I'm now using ubuntu 12.04 on an ASUS F81SE notebook with SIS motherboard,and I can't boot it normally unless by each of following 3 ways:1.add an"acpi=off" to the grub line;2.disable wlan in bios;3.download a kernel 2.6.34 or lower(used by ubuntu 10.04) from http://kernel.ubuntu.com/~kernel-ppa/mainline/ and boot the system by this kernel.
So i guess ubuntu must have removed sis motherboard acpi support from kernel 2.6 or higher(perhaps linux kernel team should be responsible for it).Please give me an a explanation about it .

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Ubuntu xserver-xorg-video-sis Edit question
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I suggest you report a bug

prcxjb (prcxjb) said : #2

I don't understand why the editor classifies my question as a question of "xerver-xorg-video-sis".It has nothing to do with the video driver!

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