rockowitz

@DarrenCook Thank you for posting your experiences with this monitor. It helps everyone. I assume the monitor is changing brightness after each of the setvcp commands. What values do get...

The parsing of relative vcp values is, well, odd. The spaces around the + or - sign are necessary to get around the command line parsing that happens before ddcutil...

I'm not sure what to make of your report. The I2C DDC slave address (x37) exists for the monitor, but requesting a value for a feature returns a packet that's...

You do not appear to be using the [special settings](https://www.ddcutil.com/nvidia) often needed by the proprietary Nvidia driver. Also, there have been problems with recent Nvidia drivers. (See #201) If the...

Your observation that the XL 2546 fails no matter whether it is on an HDMI or DP connector argues against almost any suggestion I would have. Does the XL 2411...

I don't have an answer for you, but I do have some thoughts. Looking at lines 575-582 of the interrogate report, I see that the monitor is responding to a...

You're absolutely right. The I2C device in question is /dev/i2c-3. And ENXIO is a hard error. It appears that you're using a passive adapter. (Active adapters are labelled as such.)...

Not sure what to suggest. If only one type of connection fails, it's typically DisplayPort. The response on the I2C bus to a DDC request is just a string of...

It will indeed be interesting to see if this is a common usage.  It may well be Dell specific.  I will be surprised if there is cross-manufacturer agreement on the...

Thanks for taking the time to let me know. Sanford On 09/07/2019 07:53 PM, Jason F. wrote: > > On my U2419HC (so, one generation newer) it's also using 0x1B...