Resolution is set to 1920x1080@60 in Win10 but monitor receives signal
2048x1152@60Hz (this is more than official monitor resolution that is
1020x1200@60Hz but it looks like monitor can handle it); this
information is visible at DELL monitor menu and even in Windows
configuration. Windows report that video RAM is 128MB dedicated RAM and
2048MB shared RAM. It is possible that PC just doesn't have enough video
memory to display 1920x1200. I am not sure why I am in this situation.
This is not first PC with Intel HD graphics and I believe I never had
similar problem before and I was able to run at resolution 1920x1200; I
will recheck...

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https://bugs.launchpad.net/bugs/1863248

Title:
  Intel display driver cannot read EDID from VGA monitor

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