[BUG] ddcutil flooding the logs

[saipavanc]

Describe the bug
When I am using the brightness setting on my panel, I am able to change the brightness of my scree, albeit a little buggy. But, I see that my logs are getting flooded with the following message:

Jan 14 10:45:12 sai-precision3440 ddcutil[7337]: busno=5, All features that should not exist detected. Monitor does not indicate unsupported
Jan 14 10:45:12 sai-precision3440 ddcutil[7337]: busno=6, sleep-multiplier =  2.00. Testing for supported feature 0x10 returned Error_Info[DDCRC_RETRIES in ddc_write_read_with_retry, >
Jan 14 10:45:14 sai-precision3440 ddcutil[7384]: busno=5, Feature 0xdd should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0x00 ml=0x64 sh=0x00 sl=0x64
Jan 14 10:45:14 sai-precision3440 ddcutil[7384]: busno=5, Feature 0x41 should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0x00 ml=0x64 sh=0x00 sl=0x64
Jan 14 10:45:14 sai-precision3440 ddcutil[7384]: busno=5, Feature 0x00 should not exist but ddc_get_nontable_vcp_value() succeeds, returning mh=0x00 ml=0x64 sh=0x00 sl=0x64
...(repeats)

This repeated thousands of time in my last boot. For now, disabling the brightness slider makes it work.

To Reproduce
Steps to reproduce the behavior:

1. Enable brightness setting in panel
2. check journalctl logs

Expected behavior
Logs not being flooded.

Desktop (please complete the following information):

It might be specific to my build (using nvidia) as I did not notice this in my laptop, but I will look into it soon in sometime and see if I can fix it. I will report back soon. I also support the idea of #374, maybe while fixing this bug I can incorporate a feature to add a custom script as well.