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

[Greg Couch]

I was able to ssh -XY into a Rocky 9 (RHEL 9) system, run chimerax, have 
it display on my local system and the GUI works. So it can work.    So 
there is something incompatible between your two systems that you need 
to figure out.  I'd recommend eliminating the graphics driver being 
incompatible issue by using VirtualGL.  And if that doesn't fix it, use 
your daily build on RHEL 7, to file a bug.  And describe the problem in 
the Description section.   You should also include information about the 
remote system, specifically to the OS and version, and which graphics 
card it has and the driver version.

     -- Greg

On 7/17/2022 5:24 AM, Steve Chou wrote:
> Hi Greg,
>
> Thank you so much for your detailed explanation!
>
> I tried ChimeraX 1.4 (both the latest stable release and daily build) 
> on RHEL 8.1, 8.6, and 9.0, because it can only be installed on RHEL 8 
> or 9. They all had the same problem (frozen after launching the GUI).
>
> I also had an old daily build (04/12/2022) of version 1.4, which 
> allowed me to install it on RHEL7.9, but not RHEL 8 or 9. I'm running 
> v1.4 (04/12/2022) on RHEL7.9 now because the helix cylinder 
> functionality is only available in v1.4.
>
> All the best,
> Steven
>
>
> On Sun, Jul 17, 2022 at 2:44 AM Greg Couch <gregc at cgl.ucsf.edu> wrote:
>
>     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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>
>
>
> -- 
> Steven Chou
>
>
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