MrCitron wrote:Can you explain a bit more what this kernel switch is, and how you have enabled it ?
As mentioned earlier in the thread, the kernel switch/boot parameter that is working for me is...
You can test it as a one time boot option by pressing 'E' to edit the highlighted grub menu item and add "acpi_rev_override" to the end of kernel line.
Or, to add this option permanently edit the file...
...Find the line...
... and add the option by changing the line to...
Code: Select all
GRUB_CMDLINE_LINUX="acpi_rev_override"
After saving the file changes remember to run update grub...
The machine's firmware can expose the hardware to the OS differently depending on the ACPI version the OS reports. My machine's firmware expects all Linux OS' to return 5 as the ACPI version, the acpi_rev_override option forces the OS to return 5 as the ACPI version regardless of actual version.