Thierry de Coulon composed on 2016-08-06 10:56 (UTC+0200):
So I took a look at my packages and saw that there were updates to TDE (from 14.0.0 to 14.0.3, openSUSE here).
I first choose "update if newer" for all my packages (in Yast) and ended in a disaster: apparently minimal X with a terminal, message about wrong permissions for Xorg.
Setting these permissions right let me start X... but only in KDE 4!
Are you starting sessions via TDM or some other DM, or startx?
Are the permissions you refer to those of /usr/bin/Xorg?
Updating openSUSE frequently resets permissions on /usr/bin/Xorg to 755 when I've set them to 4711.
I thought the problem was with openSUSE, so I restored and tried updating only Trinity. This time the message is:
.servauth.1668 does not exist cannot open /var/log/xorg.1.log please consult X.org foundation support
IIRC, that's one of the manifestations of not having 4711 set on /usr/bin/Xorg and trying to start an X session as a non-root user.
There are plenty of lines with (EE) too
Same correction to Xorg now brings up Icevm.
IceWM was happening to me a lot until I figured out that /etc/sysconfig/windowmanager needed tde rather than starttde for DEFAULT_WM. Without that set, the start syntax without a greeter running in openSUSE, unlike in Fedora or Debian, is either:
WINDOWMANAGER=starttde startx
or
WINDOWMANAGER=/opt/trinity/bin/starttde startx
I forget which works or not, and don't have an appropriate machine available ATM to check. https://bugzilla.opensuse.org/show_bug.cgi?id=929016 sort of explains openSUSE being different.
I'm out of my depth here. I restored again and will make a copy install to investigate the matter. I understand this may be openSUSE linked but any suggestion can help.
Not urgent however, 14.0.0 is running very well...