http://bugzilla.kernel.org/show_bug.cgi?id=12198
Summary: Linux kernel would not boot on on some Acer unless it is
started with acpi=off
Product: ACPI
Version: 2.5
KernelVersion: 2.6.24
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ACPICA-Core
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Just a small summary of my experience with the ACPI problems and Acer laptops.
This seems to be a DSDT and Linux-kernel bug. I have recently tried Ubuntu
8.04, Open SUSE 10.2, Fedora 10 and some other less known distribution on my
Acer Aspire 3050. They all have the same problem, NO booting with ACPI. In case
ACPI is off the system boots but there is no wireless or wired Internet and no
power down. I am not even mentioning suspend and hibernate.
Now, from all I've read this seems to be caused by incorrect DSDT tables
supplied by the vendor (Acer). I've also found a project that presumably
supplies fixed DSDT tables for some systems: http://acpi.sourceforge.net/dsdt/
Another thing, it seems that all the current Main stream Linux distributions
use the same flawed kernel. I.e. a kernel that somehow can not overcome
problems in the DSDT table or may be the DSDT table supplied with the kernel is
wrong or smth. I myself have no clue. Still, people claim that they could run
Ubuntu 7.10 on Acer with no problems so it seems to be a regression bug.
I hope someone takes care of this bug, because I thinks it's been around a year
since things went wrong .... it is about time some one fixes it!
There is some discussion about this problem in here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/191871
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