[ocicat]

Originally Posted by backrow

It looks like the “NoStretch” option is what I want.

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "ShadowFB"           	# [<bool>]
        #Option     "DefaultRefresh"     	# [<bool>]
        #Option     "ModeSetClearScreen" 	# [<bool>]
	Option      "NoStretch" "on" # ADDED LINE
	Identifier  "Card0"
	Driver      "vesa"
	VendorName  "Intel"
	BoardName   "US15W Video"
	BusID       "PCI:0:2:0"
EndSection

SImply Googling for "x11 nostretch" yielded the following:

Option "NoStretch" "enable"

FWIW. I have not tested to confirm.