FYI, if you have Radeon graphics, the very latest Radeon driver fixes the problem. It is in Radeon Software Adrenalin 21.4.1 from 20 April 2021. The Windows display driver is version 27.20.21002.112.

Hi Hua,

FIrst, does your machine have a Radeon graphics card? The latest Radeon drivers are buggy and don't work with Chimera so if you have a Radeon card you will have to roll back to an earlier version of the driver.

If you don't have a Radeon card, the fact that the debug info indicates that you were "initializing graphics" strongly suggests it is a problem with whatever graphics card you do have, so I would need more information about your card and driver version. If you don't know that information you can get it by running the "dxdiag" program. Type "dxdiag" into the Windows search bar to find it. When you run it you might be asked if you want to check if the drivers are WHQL certified, but that is not important for Chimera. Then click on the "Save All Information" button, which will create a text file with all of the information. We are only interested in the System and Display tabs. Then send that file to me.

--Eric

Eric Pettersen

UCSF Computer Graphics Lab

On May 11, 2021, at 8:11 PM, 黄华 <hhuang@m.scnu.edu.cn> wrote:

Dear Eric Pettersen,

This is a Chimera User in South China Normal University(Guang zhou, China).

Now, I found I can not start the Chimera even after I reinstalled. Would you tell me how could I fix this problem?

This is the message after I launch Chimera-debug:

Cannot execute 'gzip': no automatic decompression of .Z files

initializing general preferences

loading Tix

initializing graphics

Return code: -1073741819

Press return or enter to to exit

thanks for your help!

hua

------------------

Hua Huang

Principal Investigator

School of Life Science

South China Normal University

Guangzhou, China

黄华

华南师范大学M邮箱/未归类/生命科学学院/教职工/办公

华南师范大学始建于1933年，是一所学科门类齐全的国家“211 工程”重点建设大学。
“艰苦奋斗、严谨治学、求实创新、为人师表 ”是华南师范大学校训。

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