def _try_set_pci_power_state(state):
try:
pci.set_power_state(state)
except pci.PCIError as e:
print(
"ERROR : cannot set PCI power management state. Continuing. Error is : %s"
% str(e))
def _set_base_state(config):
# Base state :
# - no kernel module loaded on the card
# - bbswitch state to ON if bbswitch is loaded
# - PCI power state to "on"
_unload_nvidia_modules()
_unload_nouveau()
if checks.is_module_loaded("bbswitch"):
_set_bbswitch_state("ON")
pci.set_power_state("on")
if config["optimus"]["pci_reset"] == "yes":
pci.reset_nvidia()
def _set_base_state(config):
# Base state :
# - no kernel module loaded on the card
# - bbswitch state to ON if bbswitch is loaded
# - PCI power state to "on"
_unload_nvidia_modules()
_unload_nouveau()
if not pci.is_nvidia_visible():
print("Nvidia card not visible in PCI bus")
if checks.is_module_loaded("bbswitch"):
_set_bbswitch_state("ON")
# Unlike bbswitch, It's better to ignore acpi_call altogether if the config
# file does not ask for it. The user could have this module loaded for other purposes,
# and we don't want to fire a volley of ACPI commands unless strictly necessary.
if checks.is_module_loaded("acpi_call") and \
config["optimus"]["switching"] == "acpi_call":
_set_acpi_call_state("ON")
print("Rescanning PCI bus")
pci.rescan()
if not pci.is_nvidia_visible():
raise KernelSetupError("Rescaning Nvidia PCI device failed")
else:
if checks.is_module_loaded("bbswitch"):
_set_bbswitch_state("ON")
if checks.is_module_loaded("acpi_call") and \
config["optimus"]["switching"] == "acpi_call":
_set_acpi_call_state("ON")
pci.set_power_state("on")
if config["optimus"]["pci_reset"] == "yes":
pci.reset_nvidia()
def _setup_intel_mode(config):
# Resetting the Nvidia card to its base state
_set_base_state(config)
# Handling power switching according to the switching backend
if config["optimus"]["switching"] == "nouveau":
_load_nouveau(config)
elif config["optimus"]["switching"] == "bbswitch":
_load_bbswitch()
_set_bbswitch_state("OFF")
elif config["optimus"]["switching"] == "none":
pass
# Handling PCI power control
if config["optimus"]["pci_power_control"] == "yes":
if config["optimus"]["switching"] == "bbswitch":
print("bbswitch is enabled, pci_power_control option ignored.")
else:
pci.set_power_state("auto")
def _setup_intel_mode(config):
# Resetting the Nvidia card to its base state
_set_base_state(config)
# Handling power switching according to the switching backend
if config["optimus"]["switching"] == "nouveau":
try:
_load_nouveau(config)
except KernelSetupError as e:
print("ERROR : cannot load nouveau. Moving on. Error is : %s" %
str(e))
elif config["optimus"]["switching"] == "bbswitch":
if not checks.is_module_available("bbswitch"):
print(
"ERROR : module bbswitch is not available for the current kernel."
" Is bbswitch or bbswitch-dkms installed ? Moving on...")
else:
try:
_load_bbswitch()
except KernelSetupError as e:
print(
"ERROR : cannot load bbswitch. Moving on. Error is : %s" %
str(e))
else:
if config["optimus"]["pci_remove"] == "yes":
pci.remove_nvidia()
_set_bbswitch_state("OFF")
elif config["optimus"]["switching"] == "acpi_call":
if not checks.is_module_available("acpi_call"):
print(
"ERROR : module acpi_call is not available for the current kernel."
" Is acpi_call or acpi_call-dkms installed ? Moving on...")
else:
try:
_load_acpi_call()
except KernelSetupError as e:
print(
"ERROR : cannot load acpi_call. Moving on. Error is : %s" %
str(e))
else:
if config["optimus"]["pci_remove"] == "yes":
pci.remove_nvidia()
_set_acpi_call_state("OFF")
elif config["optimus"]["switching"] == "none":
pass
# Handling PCI power control
if config["optimus"]["pci_power_control"] == "yes":
if config["optimus"]["switching"] == "bbswitch":
print("bbswitch is enabled, pci_power_control option ignored.")
elif config["optimus"]["switching"] == "acpi_call":
print("acpi_call is enabled, pci_power_control option ignored.")
else:
pci.set_power_state("auto")