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02-10-2022 01:19 PM - edited 02-10-2022 07:14 PM
I have a HP Envy notebook computer with a HP USB-C dock. The notebook has an AMD Radeon video device. Two identical external monitors are connected to this dock with identical DisplayPort cables.
One monitor keeps changing color profiles and brightness. The other monitor reliably keeps the desired settings. The two monitors should behave the same way because they're identical devices.
This change happens when I return to my desk after being away a while. The notebook "wakes" the monitor from a low-power state. Upon waking, the color profile is reset to on the monitor is off, and it's brightness is greatly reduced.
I must go to Windows System settings and reset the color profile.
All brightness settings between my two monitors are identical, yet this second device appears to be dimmer.
The only way I've found to return the brightness back to the regular setting is to "Factory Reset" the monitor. After a factory reset, both monitors appear identical again. I have tried adjusting the brightness settings on the monitor itself, but that does not help. Update: I can change the brightness and contrast settings on the affected monitor and fix the problem. There appears to be a signal coming from my computer that lowers the brightness and contrast..
I am at a loss to understand why this keeps happening. I don't think the monitors are the problem. My monitors have worked reliably when I used them on a previous Windows 10 computer. The best I can figure is that there's a bug somewhere in either Windows 11, the display drivers, or the USB-C hub.
Has anyone experienced inconsistent brightness and inconsistent color profile settings with Windows 11, USB-C docking stations, and/or external monitors?
- HP Envy x360 15-eu0000 notebook with AMD Radeon Graphics.
- HP USB-C Dock G5
- Two Dell U2211H monitors connected by identical DisplayPort cables.
- Windows 11 21H2
- AMD Radeon Driver 22.1.2
- All drivers and firmware updates are applied to the most recent version.
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