Recently I was tyring to play some Steam Windows games under Linux, using their Proton support.
I fired up Racedriver Grid from 2008, unfortunately the resolution was capped at a fairly low resolution
1280x876 I think, and it wasn’t possible to select 1080p. Note that this isn’t a linux specific problem.
To resolve this, locate the file
hardware_settings_restrictions.xml within the game install, for me this was in
Find the section below and remove it.
<data> <res mem="270" maxWidth="1280" /> </data>
Upon restarting the game you should now be able to select higher resolutions.