Please try updating your BIOS version to the latest, see here for the download https://www.asus.com/Notebooks/X555LN/HelpDesk_Download/. Could you please let me know the cable that you are using?
Thank you very much for the reply! The link you provided is for the X555LN, and I have the X555LA, and I did attempt to upgrade to the latest BIOS (600) but was informed by the ASUS utility it was already at 600. I can downgrade to the X555LN's latest version if you think that would help.
Also, I'm not using a cable. By "Generic VGA" comment was for when I disabled Intel 5500 adapter, that showed up (maybe it was "Generic Display"?) as a placeholder that Windows puts in there.
Yes, please give it a try, downgrade the version and then upgrade it one more time. I would also recommend the following;
- Open the Device Manager.
- Expand the Display Adapters section.
- Find the Intel Graphics Driver.
- Right click Intel Graphics Driver and select Uninstall.
- Select the check box Delete the driver software for this device.
- Reboot the computer after uninstall process has finished.
Once you have rebooted your NUC, install the driver one more time Download Intel® Beta Graphics Driver for Windows* 7/8.1/10 [15.40], but this time follow these instructions How to Manually Install an Intel® Graphics Driver in Windows® 10 &....
Thank you for your continue assistance. I did as you asked and downloaded my BIOS, then updated it again. I then installed the driver manually per the instructions (it took two attempts because it auto-installed the previous Intel 5500 automatically - the second attempt was with WiFi off to keep Automatic Update from finding it). Unfortunately, while I am running 220.127.116.1104 driver version, the screen still flickers. Not as bad as with the older driver it seems, but about once or twice a minute. I did see it during the 'ASUS' graphic startup screen as well. Although not while flashing the BIOS either time.
rnelsonee, have you contacted ASUS in regard to this matter? If you have not I would recommend doing, this is because they may already be aware of the situation and could give you specific troubleshooting assistance.
It was actually hardware related - an intermittent grounding issue with the motherboard it seems.