Table of Contents
The NVIDIA Linux driver includes support for ACPI-based power management. It supports ACPI suspend-to-RAM (S3) and suspend-to-disk (S4).
On some systems, where the default suspend mode is "s2idle"
, the system may not resume properly due
to a known timing issue in the kernel. The suspend mode can be
verified by reading the contents of the file /sys/power/mem_sleep
. The following upstream
kernel changes have been proposed to fix the issue:
https://lore.kernel.org/linux-pci/20190927090202.1468-1-drake@endlessm.com/
https://lore.kernel.org/linux-pci/20190821124519.71594-1-mika.westerberg@linux.intel.com/
In the interim, the default suspend mode on the affected systems
should be set to "deep"
using the
kernel command line parameter "mem_sleep_default"
-
mem_sleep_default=deep