Hello Sebastien, first let me thank you for your fast response!
In the course of narrowing down the problem, I moved latest libatk-bridge-2.0.so.0.0.0 to a dedicated new subdirectory named sav and installed previous version: root@WS010:/usr/lib/x86_64-linux-gnu# dpkg -s libatk-bridge2.0-0 | grep -i version Version: 2.26.2-1 Now, to reproduce the prob as requested, I renamed productive libatk-bridge-2.0.so.0.0.0 to libatk-bridge-2.0.so.0.0.0.2.26.2-1 and created a hard link to sav/libatk-bridge-2.0.so.0.0.0 and then rebooted. Again the X-server continuously crashed and restarted. To be able to login from console (Ctrl-Alt-F1), I first logged in via ssh and then called telinit 3. From the console of my lenovo T61, I called startx. The result is shown in the screen-dump attached. The above procedure restores the prob. ldd returns: root@WS010:~# ldd -r /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 | grep atk libatk-1.0.so.0 => /usr/local/lib/libatk-1.0.so.0 (0x00007f29f0ee9000) libatk-bridge-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007f29f0eb2000) undefined symbol: atk_component_scroll_to_point (/usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0) undefined symbol: atk_component_scroll_to (/usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0) undefined symbol: atk_text_scroll_substring_to (/usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0) undefined symbol: atk_text_scroll_substring_to_point (/usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0) undefined symbol: atk_object_get_accessible_id (/usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0) after restoring the 2.26.2-1 version ldd returns root@WS010:/usr/lib/x86_64-linux-gnu# ldd -r /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 | grep atk libatk-1.0.so.0 => /usr/local/lib/libatk-1.0.so.0 (0x00007fe798180000) libatk-bridge-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007fe797f4f000) and xserver starts as expected. Hope that helps. Thank you for your valuable work. Regards, Klaus On 26.11.20 10:04, Sebastien Bacher wrote: > Thank you for your bug report, could share a photo showing the error > screen? xserver doesn't use atk so the error is probably in another > component. > > Could you also reinstall the package see if that restores the issue and > provide the output of > > $ ldd -r /usr/lib/x86_64-linux-gnu/libgtk-3.so.0 | grep atk > > > ** Changed in: at-spi2-atk (Ubuntu) > Importance: Undecided => Low > > ** Changed in: at-spi2-atk (Ubuntu) > Status: New => Incomplete > -- Klaus Bühler Schafstraße 16 72622 Nürtingen Tel.: +49-7022-979780 Mobil: +49-1522-8721468 ** Attachment added: "xserver-crash.png" https://bugs.launchpad.net/bugs/1905560/+attachment/5438212/+files/xserver-crash.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1905560 Title: XServer Crashes with atk_component_scroll_to_point if NVIDIA Driver 340 is Used To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/at-spi2-atk/+bug/1905560/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs