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rockowitz / ddcutil

Control monitor settings using DDC/CI and USB
http://www.ddcutil.com
GNU General Public License v2.0
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"Keeping adjust sleep multiplier" warning shown many times #427

Open Tinter opened 1 month ago

Tinter commented 1 month ago

I am running clight on my system, but I believe this problem really stems from libddcutil. Basically, I get many warnings in my system's journal, it's very noisy.

Jun 03 20:10:41 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-11: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:41 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-9: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:43 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-10: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:43 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-11: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:43 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-9: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:59 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-10: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:59 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-11: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:10:59 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-9: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:05 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-10: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:05 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-11: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:05 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-9: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:07 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-10: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:07 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-11: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS
Jun 03 20:11:07 nyaarch libddcutil[121362]: dh=Display_Handle[i2c-9: fd=42], Keeping adjusted sleep multiplier 1.00 for SE_POST_WRITE or SE_POST_SAVE_SETTINGS

It looks to be this line printing to the system log https://github.com/rockowitz/ddcutil/blob/c297369c6f4afcd36d825a27d33c6a7d2148ca64/src/base/tuned_sleep.c#L205. However this looks to me like it should've been printed at log level debug, as it appears to be normal operation?

rockowitz commented 1 month ago

Thank you for the report.

The issue is addressed in branch 2.1.5-dev, which changes the severity of the log messages in question from WARNING to VERBOSE.

If you are running a version of ddcutil earlier than 2.1.5-dev, you can avoid the messages by altering the cutoff level for messages written to the system log, using option --syslog

--syslog error

You may find it more convenient to specify the option in the ddcutil configuration file $HOME/.config/ddcutil/ddcutilrc: 

[global]
options: --syslog error