/usr/share/ubuntu-drivers-common/quirks/dell_latitude is in ubuntu-drivers-common 1:0.4.17.7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | Section "Quirk"
Identifier "Latitude E6530"
Handler "nvidia-current|nvidia-current-updates"
Match "sys_vendor" "Dell Inc."
Match "product_name" "Latitude E6530"
XorgSnippet
Section "Device"
Identifier "My Card"
Driver "nvidia"
Option "NoLogo" "True"
EndSection
Section "Screen"
Identifier "My Screen"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
EndXorgSnippet
EndSection
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