No @jacsalomon, that's not true. If you override via grub, there's no need for
the kernel override.
That is, this scheme works with Ubuntu's kernel configuration:
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
# CONFIG_ACPI_CUSTOM_DSDT is not set
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This is not for grub only, they need to re-compile kernel with config
flag enabled:
# CONFIG_ACPI_CUSTOM_DSDT is not set
+ CONFIG_ACPI_CUSTOM_DSDT = y
Is recommend to enabled this in all generic-kernel versions, otherwise
they do not override DSDT bogus tables
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GRUB also accepts an 'acpi' command:
https://www.gnu.org/software/grub/manual/html_node/acpi.html
Perhaps we could just make it easier for that command to be generated as
a part of boot entry blocks in grub.cfg.
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Bugs,
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: grub2 (Ubuntu)
Status: New = Confirmed
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https://bugs.launchpad.net/bugs/1045690
Title:
Ok, thanks. I'm just trying it with my old Samsung P35. How do I know
that the DSDT was loaded successfully? I can't see any hints in dmesg.
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Looking at the current initramfs-tools package, you can put a DSDT.aml
into /etc/initramfs-tools/ so that it gets used.
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https://bugs.launchpad.net/bugs/1045690
Title:
Allow custom
Support for loading a DSDT from the initramfs was removed from the
kernel some time ago. It has to be passed by the boot loader now.
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Title:
** Also affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: grub (Ubuntu)
Status: New = Invalid
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Title:
** Changed in: grub2 (Ubuntu)
Importance: Undecided = Wishlist
** No longer affects: grub (Ubuntu)
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Title:
Allow custom DSDT overrides in
