Although I'm using OS ALT but I performed pretty much similar steps to patch the ACPI DSDT table.
> In my case the output dsdt.dsl file contained some invalid error output lines [...]
I also got multiple error messages which I commented for compile to succeed
/*
*Firmware Error (ACPI): Could not resolve symbol [^GFX0.CLID], AE_NOT_FOUND (20190509/dswload-496)
*Firmware Error (ACPI): Could not resolve symbol [^^PEG0.PEGP.DD1F], AE_NOT_FOUND (20190509/dswload-496)
[...]
*Firmware Error (ACPI): Could not resolve symbol [^^^UBTC.STS7], AE_NOT_FOUND (20190509/dswload2-477)
*/
> # Create or update /boot/grub/custom.cfg to contain
> acpi /fixed_dsdt.aml
In my case I used initrdefi grub command to overlay ACPI table:
initrdefi /boot/acpi_override /boot/initrd.img
Although I'm using OS ALT but I performed pretty much similar steps to patch the ACPI DSDT table.
> In my case the output dsdt.dsl file contained some invalid error output lines [...]
I also got multiple error messages which I commented for compile to succeed
/* dswload- 496) dswload- 496) dswload2- 477)
*Firmware Error (ACPI): Could not resolve symbol [^GFX0.CLID], AE_NOT_FOUND (20190509/
*Firmware Error (ACPI): Could not resolve symbol [^^PEG0.PEGP.DD1F], AE_NOT_FOUND (20190509/
[...]
*Firmware Error (ACPI): Could not resolve symbol [^^^UBTC.STS7], AE_NOT_FOUND (20190509/
*/
> # Create or update /boot/grub/ custom. cfg to contain
> acpi /fixed_dsdt.aml
In my case I used initrdefi grub command to overlay ACPI table:
initrdefi /boot/acpi_override /boot/initrd.img