Love updates: Ubuntu, OpenGL, IOT instruction
=============================================
I have updated my wannabe work machine (the Lenovo x61s which now
serves as my only Linux box at work because the work machine is
Windows-only). It runs Ubuntu LTS for ages. I upgraded it to the latest
LTS with naive hopes that it solves some of its minor issues.
It didn't. Moreover, there are some new (albeit minor) issues, like the
notification area with the next "No indicators".
But a more important issue have arose. I have a FEA (Finite Element
Analysis) code which uses the OpenGL 1.x and the Gtk+ 2.x. It worked
well until the update. Now it starts abut at some moment it always
crashes with the "IOT instruction (core dumped)" error.
The workaround is to disable the OpenGL accelereation for this
particular application. It is stupid (as this thing benefits from the
acceleration so much) but it at least no longer crashes.
So the command is : IBGL_ALWAYS_SOFTWARE=1 /path/to/gfem
Well, it is still good that a 14 year old machine is at least partially
supported by current operating systems. Even better is that my OKI
printer is still supported here, too (it was donated to me because it
does not work under the Windows 11).