docs: add slow charging workaround for HP OmniBook X Flip - #616
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daviddelsol1998 wants to merge 1 commit into
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docs: add slow charging workaround for HP OmniBook X Flip#616daviddelsol1998 wants to merge 1 commit into
daviddelsol1998 wants to merge 1 commit into
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Boot Manager Configuration page is not the correct one for this use case. FAQ & Troubleshooting or in a new heading over at CachyOS Kernel. |
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What
Adds a "Workaround: Slow Charging on HP OmniBook X Flip" section to the Boot Manager Configuration page, covering the
acpi_osi=! acpi_osi="Windows 2022"kernel command line workaround for Limine, GRUB, and systemd-boot.Why
The HP OmniBook X Flip 16-ar0xxx charges at ~0.2 W under Linux instead of 30 W+ because the EC firmware gates fast charging behind the ACPI
_OSI("Windows 2022")query. CachyOS kernels don't provideacpi_rev_override, so the_OSIworkaround is the way to fix it. Verified on a real device (charging restored to 30 W+).Notes
KERNEL_CMDLINE[default]+=append syntax (verified on device), plus GRUB and systemd-boot variants./proc/cmdline,BAT0/power_now).acpi_osi=!removes all Windows OSI responses.