Tumbleweed 20211224. Background: what fulldrm kernel is about (~2k bytes in thread OP): https://lists.opensuse.org/archives/list/factory@lists.opensuse.org/thread/7KUE5UVAT372YS7KAGLTKXRPJGCLJ7N6/
Using a fulldrm kernel, startx opens TDE session booting to multi-user.target. Booting to graphical.target, TDM doesn't open, and the following appears in /var/log/tdm.log (why /etc/trinity/tdm/tdmdistrc doesn't exist I don't know):
Dec 25 21:58:13 tdm_config[710] info: Cannot open master configuration file /etc/trinity/tdm/tdmdistrc
X.Org X Server 1.21.1.2 X Protocol Version 11, Revision 0 Current Operating System: Linux ab560 5.15.11-5.g730a488-default #1 SMP Thu Dec 23 06:47:43 UTC 2021 (730a488) x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz root=LABEL=tm8p07stw noresume ipv6.disable=1 net.ifnames=0 drm.debug=0x1e log_buf_len=1M 5
Current version of pixman: 0.40.0 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Sat Dec 25 21:58:13 2021 (==) Using config directory: "/etc/X11/xorg.conf.d" (==) Using system config directory "/usr/share/X11/xorg.conf.d" (EE) (EE) Backtrace: (EE) 0: /usr/bin/Xorg.bin (xorg_backtrace+0x85) [0x55af39cbd8e5] (EE) 1: /usr/bin/Xorg.bin (0x55af39ae7000+0x1d83e5) [0x55af39cbf3e5] (EE) 2: /lib64/libc.so.6 (0x7fb14ea6d000+0x56430) [0x7fb14eac3430] (EE) 3: /lib64/libc.so.6 (0x7fb14ea6d000+0x19ce05) [0x7fb14ec09e05] (EE) 4: /usr/bin/Xorg.bin (0x55af39ae7000+0xc61ef) [0x55af39bad1ef] (EE) 5: /usr/bin/Xorg.bin (0x55af39ae7000+0xc71c5) [0x55af39bae1c5] (EE) 6: /usr/bin/Xorg.bin (0x55af39ae7000+0xc72d8) [0x55af39bae2d8] (EE) 7: /usr/bin/Xorg.bin (0x55af39ae7000+0x1db5e1) [0x55af39cc25e1] (EE) 8: /usr/bin/Xorg.bin (WaitForSomething+0x1e0) [0x55af39cbc290] (EE) 9: /usr/bin/Xorg.bin (0x55af39ae7000+0x4c3b9) [0x55af39b333b9] (EE) 10: /lib64/libc.so.6 (0x7fb14ea6d000+0x405c0) [0x7fb14eaad5c0] (EE) 11: /lib64/libc.so.6 (__libc_start_main+0x7e) [0x7fb14eaad67c] (EE) 12: /usr/bin/Xorg.bin (_start+0x25) [0x55af39b33e85] (EE) (EE) Segmentation fault at address 0x0 (EE) Fatal server error: (EE) Caught signal 11 (Segmentation fault). Server aborting (EE) (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. (EE) (II) AIGLX: Suspending AIGLX clients for VT switch [2021/12/25 21:58:14.776] ERROR: cannot connect to X server [tdekbdledsync] Unable to open X11 display! Dec 25 21:58:14 tdm: :0[795] error: Abnormal termination of greeter for display :0, code 1, signal 0 (EE) Server terminated with error (1). Closing log file.