[chimerax-users] ChimeraX 1.4 frozen on RHEL 8.6 and 9.0

[Greg Couch]

ChimeraX was compiled on "CentOS Linux release 8.5.2111", but that is 
extremely unlikely to matter.

The main GUI change between ChimeraX 1.4 and 1.3 is that ChimeraX 1.3 
uses Qt 5 and ChimeraX 1.4 uses Qt 6.   So, from your original 
description, the most likely bug is that we missed a dependency that is 
needed for Qt 6 to work.  So you should try installing Qt 6 separately 
from https://www.qt.io/download (eg., get the open source version's Qt 
Online Installer), and see if that fixes the problem.

But you also mention trying to run ChimeraX by logging into a remote 
system running RHEL 8.6 from RHEL 7.9.  Running ChimeraX remotely 
frequently fails to work.  Officially, that is not supported.   There 
are too many possible points of failure.   It does work sometimes, and 
especially when the local and remote system are running the exact same 
version of Linux and have the exact same graphics driver installed.  The 
graphics driver is the usual culprit, and that can be mitigated by 
running ChimeraX under VirtualGL on the remote system.

For completeness, if you are stuck with a RHEL 7 desktop, and your data 
is on your local system, you could run ChimeraX in a virtual machine.  
So instead of logging in via ssh, you startup the virtual machine, and 
login to it directly.  Some virtual machines are better than others.  
I've been happy running different flavors of Linux on VMware Workstation 
Player on a Windows desktop with a Nvidia GeForce GTX 970 (remember to 
enable 3D graphics support).  There is also a Linux version of VMware 
Workstation Player.

     HTH,

     Greg

On 7/16/2022 6:04 PM, Steven Chou via ChimeraX-users wrote:
> When I logined to RHEL8.6 from RHEL 7.9 using ssh, everything worked fine.
> Which subversion of RHEL 8 was used to compile ChimeraX 1.4? I may try 
> the same version.
> Steven
>
>
> On Sat, Jul 16, 2022 at 9:01 PM Steven Chou <stevezchou at gmail.com> wrote:
>
>     Dear ChimeraX developers,
>
>     I installed ChimeraX 1.4 (both stable release and daily built) on
>     RHEL 8.6 and 9.0.
>
>     I installed all the ChimeraX 1.4 dependencies using "yum install"
>     from RHEL installation USB.
>
>     After the installation, I was able to start the GUI, but unable to
>     click any button on the GUI, therefore, I was unable to report the
>     bug from the GUI either.
>
>     I also tried ChimeraX 1.3 stable release on RHEL 8.6, and
>     everything was normal.
>
>     Steven
>
>     -- 
>     Steven Chou
>
>
>
>
> -- 
> Steven Chou
>
>
>
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