slowtrain55 - Another thought
Is this a laptop system ?
Then consider updating DSDT (Differentiated Services Description Table)
< TJ-> ACPI == Advanced Configuration and Power Interface. It provides a way for the PC firmware (UEFI/BIOS) to declare to an Operating System how to control its platform-specific hardware. ACPI provides several in-firmware ‘tables’. One such is the Differentiated Services Description Table (DSDT). This actually contains executable code in a special ACPI ‘language’ which the OS has to execute. Rather like Java and its Virtual Machine. when the OS boots it calls a ‘method’ in the DSDT reporting its name _OSI(“Linux”) and the code in _OSI() should configure the hardware correctly… in your case the PC [perhaps] doesn’t recognise it so it will adopt fail-safe minimal defaults. HOWEVER… in almost 100% of cases the DSDT will declare various “Windows XXXX” versions for _OSI() so we can have Linux pretend to be the latest Windows versions with something like “acpi_osi=Windows 2012” on the kernel command line. So, we need to identify which ‘names’ that PC’s DSDT recognises. To that do terminal command:
sudo strings /sys/firmware/acpi/tables/DSDT | grep -i windowsand identify the latest Windows version listed. OK, 2 steps now. 1. Test. 2. If OK, Apply. To test, reboot the PC, hold down Shift to get the GRUB boot menu. highlight the default entry, press ‘E’ to edit it, navigate to the line starting “linux …” … and add to the end the string (including double-quotations) “acpi_osi=Windows 2013” - then press Ctrl+X or F10 immediately to boot with that change. [this is just a bit of text that Linux kernel uses to fool the motherboard into thinking the booting OS is actually Windows, which causes the motherboard to enable additional functionality for power control in most cases ] - Test the system, if it has improved, make that setting permanent by adding it to GRUB_CMDLINE_LINUX in /etc/default/grub . after it boots check the setting was used with “cat /proc/cmdline”
-might help-