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Add allow_writes=on to the MSR module parameters. Workaround for #206, #215 and #228

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erpalma 2020-12-22 09:45:49 +01:00
parent 99148e27f0
commit 1fd44fdc30
1 changed files with 17 additions and 0 deletions
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17
lenovo_fix.py
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@ -196,6 +196,21 @@ def get_value_for_bits(val, from_bit=0, to_bit=63):
return (val & mask) >> from_bit
def set_msr_allow_writes():
log('[I] Trying to unlock MSR allow_writes.')
if not os.path.exists('/sys/module/msr'):
try:
subprocess.check_call(('modprobe', 'msr'))
except subprocess.CalledProcessError:
return
if os.path.exists('/sys/module/msr/parameters/allow_writes'):
try:
with open('/sys/module/msr/parameters/allow_writes', 'w') as f:
f.write('on')
except:
warning('Unable to set MSR allow_writes to on. You might experience warnings in kernel logs.')
def is_on_battery(config):
try:
for path in glob.glob(config.get('GENERAL', 'Sysfs_Power_Path', fallback=DEFAULT_SYSFS_POWER_PATH)):
@ -813,6 +828,8 @@ def main():
check_kernel()
check_cpu()
set_msr_allow_writes()
log('[I] Loading config file.')
config = load_config()
power['source'] = 'BATTERY' if is_on_battery(config) else 'AC'