diff options
Diffstat (limited to 'system/ddcutil/README')
| -rw-r--r-- | system/ddcutil/README | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/system/ddcutil/README b/system/ddcutil/README new file mode 100644 index 0000000000..d1c351c8f6 --- /dev/null +++ b/system/ddcutil/README @@ -0,0 +1,14 @@ +ddcutil is a Linux program for querying and changing monitor settings, +such as brightness and color levels. + +ddcutil primarily uses DDC/CI (Display Data Channel Command Interface) +to communicate with monitors implementing MCCS (Monitor Control Command +Set) over I2C. Normally, the video driver for the monitor exposes the +I2C channel as devices named /dev/i2c-n. + +Use the following commands in order to be able to use ddcutil as a +regular user: + + # cp /usr/share/ddcutil/data/45-ddcutil-i2c.rules /etc/udev/rules.d + # groupadd -r i2c + # usermod -aG i2c your_username_here |