Troubleshoot external monitor connections in Windows 10. Windows 10. Before considering troubleshooting options, make sure your device is up to date. Select Start > Settings > Update & Security > Windows Update , then select Check for updates. If you need help setting up your external monitors, see How to use multiple monitors in Windows 10.
Open Start. Search for Device Manager and click the top result to open the app. Expand the branch with the device you want to check. Right-click the device and select the Properties option. Source
2)Type devmgmt.msc in the box and hit Enter to open Device Manager. 2) Right-click on PCI Serial Port in Other devices section. Then click Update Driver Software… 3) Click Search automatically for updated driver software. Then if Windows detect the updates for it, PCI Serial Port driver would be updated automatically.
1) When I connect eGPU to the laptop I can't use eGPU as screen display manager, also some apps don't use it (as mentioned in lead post). 2) The same as 1 but with external minitor connected to the laptop situation is the same about eGPU usage. 3) When I try to connect eGPU to the external monitor two scenarios happens:
Click Device Manager. Double-click Chipset and check under the PCI Express root to see if all your Thunderbolt connections are functioning correctly. Any devices not functioning have a yellow exclamation mark in front of them. If Device Manager shows any Thunderbolt connections that are not functioning, check for updated drivers.
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vga not detected in device manager
