rockowitz

Please submit the output of **sudo ddcutil detect --enable-usb --verbose** and **sudo ddcutil interrogate --enable-usb --verbose**. Note the ***--enable-usb*** option - by default ddcutil commands do not look for VCP...

Please submit the output of the following command: **sudo getvcp 10 --trace usb --hiddev 1** Also, looking at the detect output, the monitor is found on bus /dev/i2c-1. The error...

Please execute the following: **ddcutil getvcp 10 --enable-usb --hiddev1 --trcfrom get_hiddev_edid_with_fallback** **ddcutil detect --verbose --ddcdata --sleep-multiplier 2.0** Curiously, your **detect** output locates the laptop display's EDID at both /dev/i2c-5 and...

Re the first command, you faithfully executed my typo. The command should have been **ddcutil getvcp 10 --enable-usb --hiddev 1 --trcfrom get_hiddev_edid_with_fallback**, i.e. with a space between "hiddev" and "1"....

Here's what the output is showing. (We've already determined that the monitor claims to comply with the HID Monitor Control Class Spec.) ddcutil first tries to read the EDID in...

Thank you for the clear discussion of the issue. I will have to think through the implications. If what you're trying to do is give non-root users the ability to...

How can you run ddcutil without being logged on as some user? Or are you running without the udev rules having been executed? I have put a set of changes...

Given the imminence of its release, I'm afraid no further changes can be made in release 2.2.1 regarding this enhancement request. I'll keep it in mind for the next release.

The interrogate output is very strange. The EDID reported for /dev/i2c-8 is sometimes that of the laptop display, not the HDMI display. Try using option ***--disable-try-get-edid-from-sysfs***.

Attempting to read feature X10 (Brightness) is part of the tests as to whether the monitor supports DDC; I've yet to see a monitor that does not implement that feature....