Hello, meanwhile I noticed that this mailing list is not for user support. I addressed myself to the xorg list, but so far, I got the advise to do the kind of service that Debians maintainers do fine: https://lists.x.org/archives/xorg/2019-July/059852.html https://lists.x.org/archives/xorg/2019-July/059853.html Best regards Markus