The xorg 6.8.2 release did not support the hot keys of my keyboard. With the following patch I was able to get all of the hot keys to work nicely.
Created attachment 3934 [details] [review] Patch to enable support for Microsoft Wired Keyboard 500
Could you please try "microsoftpro" variant - it is superset of your definition?
Yes the microsoftpro seems to work just fine now. At least I see all the correct keys in xev in X safe mode. My patch is thus not needed and by looking at it, all keys are exactly already in the microsoftpro. It seems that I'm having only trouble with gnome keyboard management doing something strange and creating by my own type I managed to get it working by accident.
Ok, so I am closing this one.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.