Public bug reported:

System: 
- Lenovo ThinkPad T61 with 
- Intel Core 2 Duo T7500 @ 2,2 GHz
- NVIDIA G86M (Quadro NVS 140M) graphics chipset.
- Samsung SSD 750, 250GByte
- 4Gbyte Hauptspeicher

OS: Ubuntu from 14.4 LTS, continuously upgraded to 18.04 LTS.
NVIDIA third-party free driver installed via ubuntu-drivers.

Notebook runs fine with 18.04. After upgrade to 20.04 LTS there is no GUI any 
longer.
startx called from command-line reveals a crash of xserver due to an undefined 
symbol (atk_component_scroll_to_point) in libatk-bridge2.0-0.

In the course of upgrading to 20.04 LTS, this lib has been updated from
2.26.2-1 to 2.34.2.

I found this workaround: uninstall libatk-bridge2.0-0 (Purge). It has
only 5 dependencies (some  Python and Gnome-Orca) which are of no use to
me. Downloaded 2.26.2-1 out of 18.04-repo and installed it via dpkg.
Install runs smooth without any error message. After restart, GUI is
back again.

There is no doubt, the problem is caused by libatk-bridge2.0-0 > 2.26.2
due to the missing export of atk_component_scroll_to_point. Please
restore this (and possibly other) exports, that have been dropped
between 2.26.2 and 2.34.2, even if the corresponding functions are left
empty. One must not drop any function from ABI without increasing
library version. You can never tell, what relies on the existence of
these functions.

Regards, Klaus

** Affects: at-spi2-atk (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to at-spi2-atk in Ubuntu.
https://bugs.launchpad.net/bugs/1905560

Title:
  XServer Crashes with atk_component_scroll_to_point if NVIDIA Driver
  340 is Used

Status in at-spi2-atk package in Ubuntu:
  New

Bug description:
  System: 
  - Lenovo ThinkPad T61 with 
  - Intel Core 2 Duo T7500 @ 2,2 GHz
  - NVIDIA G86M (Quadro NVS 140M) graphics chipset.
  - Samsung SSD 750, 250GByte
  - 4Gbyte Hauptspeicher

  OS: Ubuntu from 14.4 LTS, continuously upgraded to 18.04 LTS.
  NVIDIA third-party free driver installed via ubuntu-drivers.

  Notebook runs fine with 18.04. After upgrade to 20.04 LTS there is no GUI any 
longer.
  startx called from command-line reveals a crash of xserver due to an 
undefined symbol (atk_component_scroll_to_point) in libatk-bridge2.0-0.

  In the course of upgrading to 20.04 LTS, this lib has been updated
  from 2.26.2-1 to 2.34.2.

  I found this workaround: uninstall libatk-bridge2.0-0 (Purge). It has
  only 5 dependencies (some  Python and Gnome-Orca) which are of no use
  to me. Downloaded 2.26.2-1 out of 18.04-repo and installed it via
  dpkg. Install runs smooth without any error message. After restart,
  GUI is back again.

  There is no doubt, the problem is caused by libatk-bridge2.0-0 >
  2.26.2 due to the missing export of atk_component_scroll_to_point.
  Please restore this (and possibly other) exports, that have been
  dropped between 2.26.2 and 2.34.2, even if the corresponding functions
  are left empty. One must not drop any function from ABI without
  increasing library version. You can never tell, what relies on the
  existence of these functions.

  Regards, Klaus

To manage notifications about this bug go to:
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