[Chimera-users] Chimera error at start-up

Hernando J Sosa hernando.sosa at einsteinmed.edu
Thu Dec 9 05:39:26 PST 2021

Thanks Elaine,

Yes, it was a driver related problem. It seems that my computer got an automatic "update" that broke things up (GPL libraries??). After removing/reinstalling, the Radeon graphics driver. Chimera now works fine.



From: Elaine Meng <meng at cgl.ucsf.edu>
Sent: Wednesday, December 8, 2021 3:46 PM
To: Hernando J Sosa <hernando.sosa at einsteinmed.edu>
Cc: chimera-users at cgl.ucsf.edu BB <chimera-users at cgl.ucsf.edu>
Subject: Re: [Chimera-users] Chimera error at start-up

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Hi Hernando,
Did the graphics driver change?  This is probably a graphics driver bug -- it sounds like the same thing two other people reported this month, and we've just been advising people to update the graphics driver to the latest version, as in this post:


I hope this helps,
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Dec 8, 2021, at 12:14 PM, Hernando J Sosa via Chimera-users <chimera-users at cgl.ucsf.edu> wrote:
> Dear Chimera,
>  I cannot open Chimer anymore in a computer (Windos10 64) where it was running until yesterday. I tried with no success  reinstalling the program and installing the latestChimera  daily release.
> The error that I get at startup says:
> <image.png>
> If I start in debug mode I get the following error in a command window:
> Cannot execute 'gzip': no automatic decompression of .Z files
> initializing general preferences
> loading Tix
> initializing graphics
> Return code: -1073741819
> How can I resolve this issue?
> Thanks
> Hernando

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