External monitor has intermittent signal and flashes black unless I disable it in device manager
External monitor has intermittent signal and flashes black unless I disable it in device manager
I bought a new external monitor recently and have had the issue of an intermittent display signal
Disabling the monitor in device manager fixes the issue and the monitor works fine when disabled so it's highly likely its some weird software issue but I'd like to find a proper fix for it
I am able to get it to have constant display signal by chance sometimes without disabling the display in device manager but turning off the external display brings back the issue when I turn it back on and it reconnects
OS: Windows 11
Display: Lenovo G27QC-30 with Lenovo's drivers installed *have tried with Microsoft drivers and run into the same issue
Have already tried uninstalling and reinstalling monitor on device manager and reinstalling drivers and that hasn't fixed the issue
Also have already tried using display driver uninstaller to clean install graphics drivers
Edit:
the events tab in windows device manager for the monitor properties does show this error sometimes:
Device not started (monitor)
Device DISPLAY\LEN66F4\5&3287afbc&1&UID4352 had a problem starting.
Driver Name: oem64.inf Class Guid: {4d36e96e-e325-11ce-bfc1-08002be10318} Service: monitor Lower Filters: Upper Filters: Problem: 0x0 Problem Status: 0xC00000E5
Edit 2:
The monitor will work fine once if i restart my laptop but disabling and re=enabling in device manager causes the problem
You try a different cable? What interface are you using?
Also have you tried a different computer on it to make sure it's not the monitor at fault?
Also did try another cable already
I don't think its a hardware issue because the monitor works fine if I disable it in device manager
I disable the monitor under the monitor section in device manager and it stops the issue
If it wasn't a software issue then disabling the monitor in device manager wouldn't work
I'd still like to find a proper fix and narrow down what is is causing the issue
The guy is following basic troubleshooting practices and you didn't answer a single question. If you really want to narrow down where the issue is, try those things first before deciding you know where the issue is.
You haven't mentioned any cables, resolutions or GPU. The monitor is 2560x1440 at 165Hz. Are you running it at that? Is it straight from the GPU, or does it go through a dock? Are you on a desktop, tablet, laptop?
Does it work at 1080p60? 720p60?
Might be a crappy DP cable, and disabling the device in device manager is actually disabling extra features or AMD FreeSync or whatever, so its going back to being a dumb display
Disabling the monitor in device manager fixes the issue and the monitor works fine when disabled
I don't understand this phrase and I'm not sure why no one else has asked about it. What does this mean?
When you open the device manger it gives you an option to disable devices
I do this with the display to get it in a working state that stops the issue but its not a proper fix