http://bugs.winehq.org/show_bug.cgi?id=9347
--- Comment #11 from Vitaliy Margolen vitaliy@kievinfo.com 2007-09-12 15:21:23 --- You seeing the correct behavior. CS:S resets all graphics settings when you force it into particular dxlevel, using the command line switch. You can verify that on windows as well.
What you should do, is start it in required dxlevel with the "-dxlevel x" command line option, change all the settings required, then exit CS:S. Start CS:S _without_ "-dxlevel x" command line option. Verify that all your graphics settings are preserved.