The only way I have been able to get the patched DSDT to work is to
build it into the kernel. This is less than ideal but will allow you to
use your computer. If you have been unable to get a patched DSDT to
work, this should work for you. I am currently running 14.04 with a
custom kernel
Sorry, end of 8 was supposed to say if you encounter any errors, try to
resolve them and retry building the kernel.
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https://bugs.launchpad.net/bugs/1093217
Title:
8086:0166 [Lenovo
I think that I have found the culprit code change that is causing the
slow boot issue. I have been comparing changes across the 3.2, 3.5, and
3.8 kernels and paying attention to the changes that remained the same
across the 3.5 and 3.8 sources.
All calls to exit_idle() and irq_enter() were
I realized I built the kernel with ACPI debugging enabled, rebuilt the
kernel and now it doesn't work. So I guess don't waste your time
testing the fix I proposed.
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I am not sure if it fixed my computer or not. I seem to have better
luck booting than a lot of people for some reason. Because the issue
has occurred after a kernel update, I am just suggesting that maybe
altering the DSDT is not the best solution to this problem(especially
since Windows 8 is
I found that there is also a Linux option you can try too. It looks
like there is a list of OS names in the DSDT and if Ubuntu isn't
supplying one of those names, a lot of things don't get initialized
properly. After saying that the Windows 2012 option was working, it
immediately stopped
After a lot of digging, I found that the DSDT for my Windows 8 and
Ubuntu are nearly identical. There is no delay in the WAEC method that
Windows 8 is using. In method _OSC of the decompiled DSDT, there is a
test against the OS name reported to the ACPI. In my case, I am dual
booting with
I successfully applied this fix to 12.10. Did you put add the acpi
command to the grub.cfg file?
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Title:
Ubuntu 12.04/12.10/13.04 10-20min boot
Forgot to mention that I installed 12.10 in UEFI mode and am dual
booting Windows8 from grub.
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Title:
Ubuntu 12.04/12.10/13.04 10-20min boot
I am always booting in UEFI mode. I put the patched DSDT in the same
location, but I edited /boot/grub/grub.cfg to include acpi
/boot/DSDT.aml just before the linux and initrd load commands. This
works for me on every boot. I am not at my computer right now, so if any
of the info seems wrong I
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