def _get_PAT_parameter_value(config):
pat_value = {"yes": 1, "no": 0}[config["nvidia"]["pat"]]
if not checks.is_pat_available():
print("Warning : Page Attribute Tables are not available on your system.\n"
"Disabling the PAT option for Nvidia.")
pat_value = 0
return pat_value
def switch_to_nvidia(config):
print("Switching to Nvidia")
if config["optimus"]["switching"] == "bbswitch":
# bbswitch module
print("Loading bbswitch module")
try:
exec_bash("modprobe bbswitch")
except BashError as e:
raise SwitchError("Cannot load bbswitch : %s" % str(e))
# bbswitch switching
print("Ordering ON via bbswitch")
exec_bash("echo ON | tee /proc/acpi/bbswitch")
if not checks.is_gpu_powered():
raise SwitchError("bbswitch refuses to turn ON the GPU")
else:
print("bbswitch reports that the GPU is ON")
# Unloading nouveau
print("Unloading nouveau module")
try:
exec_bash("modprobe -r nouveau")
except BashError as e:
raise SwitchError("Cannot unload nouveau : %s" % str(e))
# Nvidia modules
print("Loading Nvidia modules")
modeset_value = {"yes": 1, "no": 0}[config["nvidia"]["modeset"]]
pat_value = {"yes": 1, "no": 0}[config["nvidia"]["PAT"]]
if not checks.is_pat_available():
print(
"Warning : Page Attribute Tables are not available on your system.\n"
"Disabling the PAT option for Nvidia.")
pat_value = 0
try:
exec_bash("modprobe nvidia NVreg_UsePageAttributeTable=%d" % pat_value)
exec_bash("modprobe nvidia_uvm nvidia_modeset")
exec_bash("modprobe nvidia_drm modeset=%d" % modeset_value)
except BashError as e:
raise SwitchError("Cannot load Nvidia modules : %s" % str(e))
# Xorg configuration
print("Configuring Xorg...")
configure_xorg(config, mode="nvidia")
# Login managers configuration
print("Configuring login managers..")
configure_login_managers(mode="nvidia")
def switch_to_nvidia(config):
print("Switching to Nvidia")
if config["optimus"]["switching"] == "bbswitch":
if not checks.is_module_available("bbswitch"):
print(
"Module bbswitch not available for current kernel. Skipping bbswitch power switching."
)
else:
# bbswitch module
print("Loading bbswitch module")
try:
exec_bash("modprobe bbswitch")
except BashError as e:
raise SwitchError("Cannot load bbswitch : %s" % str(e))
# bbswitch switching
print("Ordering ON via bbswitch")
exec_bash("echo ON | tee /proc/acpi/bbswitch")
if not checks.is_gpu_powered():
raise SwitchError("bbswitch refuses to turn ON the GPU")
else:
print("bbswitch reports that the GPU is ON")
# Unloading nouveau
print("Unloading nouveau module")
try:
exec_bash("modprobe -r nouveau")
except BashError as e:
raise SwitchError("Cannot unload nouveau : %s" % str(e))
# Nvidia modules
print("Loading Nvidia modules")
pat_value = {"yes": 1, "no": 0}[config["nvidia"]["PAT"]]
if not checks.is_pat_available():
print(
"Warning : Page Attribute Tables are not available on your system.\n"
"Disabling the PAT option for Nvidia.")
pat_value = 0
try:
exec_bash("modprobe nvidia NVreg_UsePageAttributeTable=%d" % pat_value)
if config["nvidia"]["modeset"] == "yes":
exec_bash("modprobe nvidia_drm modeset=1")
else:
exec_bash("modprobe nvidia_drm modeset=0")
except BashError as e:
raise SwitchError("Cannot load Nvidia modules : %s" % str(e))
# PCI power management
if config["optimus"]["pci_power_control"] == "yes":
if config["optimus"]["switching"] == "bbswitch":
print("bbswitch is enabled, pci_power_control option ignored.")
else:
try:
pci.set_power_management(False)
except pci.PCIError as e:
print("WARNING : Cannot set PCI power management : %s" %
str(e))
# Xorg configuration
print("Configuring Xorg...")
configure_xorg(config, mode="nvidia")
# Login managers configuration
print("Configuring login managers..")
configure_login_managers(config, mode="nvidia")