I have acquired a new PC and installed Mint 18 Cinnamon from the cover disk of Linux Format 214. The kernel is 4.4.0-138 generic. The graphics are handled by Intel Corporation Device 3e90 (prog-if 00 [VGA controller]) and the monitor is AOC E2270SWHN of 1920x1080 (16:9). The Display application only shows the monitor as a laptop with 1024x768 screen and with no options for adjustment or correction. While tolerable for everyday tasks, this is not acceptable for photo editing or other graphics tasks.
Elsewhere I saw a recommendation to change the VGA cable, which didn't produce any improvement. I next followed the advice in fourth post from bottom of viewtopic.php?f=59&t=250485, namely
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sudo apt-get remove xserver-xorg-video-intel
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inxi -G
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Card: Intel Device 3e90
Display Server: X.Org 1.18.3 drivers: fbdev (unloaded: vesa)
Resolution: 1024x768@76.00hz
GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)
GLX Version: 3.0 Mesa 11.2.0
Note that fbdev has not been removed, unlike in the example quoted.
Unfortunately the Display app. continues to insist my PC is a laptop with a small screen, presumably due to the continued presence of fbdev. Where do I go from here?
Thanks in anticipation of some help,
Derek.