installation issue

[venkatareddy@…]

Hi,

I am installing Chimerax 1.5 on ubuntu 22.04.01.
`sudo apt install ./ucsf-chimerax_1.5ubuntu22.04_amd64.deb`

At the end of installation, I get the following message:

`N: Download is performed unsandboxed as root as file '/path/to/ucsf-chimerax_1.5ubuntu22.04_amd64.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)`

When I open chimerax, the gui opens but gives the message:
`chimerax is not responding` wait or force quit.

Could you please help resolving this issue.


Thank you,
Venkat

[pett]

Reported by Venkatareddy Dadireddy

[Greg Couch]

The apt install error is normal and can be ignored. It is because the apt program runs as a special user, '_apt', that doesn't have permission for your directory. chimerax is installed correctly.

The bug with chimerax not responding is probably due to a buggy graphics driver or when trying to run chimerax remotely over ssh. If you have Nvidia graphics, make sure to install the proprietary drivers from Nvidia. Please report back with the output from "lspci | grep VGA". That will tell us which graphics device you have. Also, please "apt install mesa-utils" and send us the output of the glxinfo program. With that information, we should be able to be more definitive.