[chimerax-users] Help viewer is blank after upgrading to Fedora 35

[Greg Couch]

Yes, the problem is that your operating system is too new :-). You will 
need to wait for a newer version of ChimeraX that uses Qt 6 instead of 
Qt 5.  Fortunately, we are working on that right now, and there should 
be a version available within a week.  It is a major change, so it will 
be in a "technology preview" build before it shows up in the daily 
builds.  Unfortunately, ISOLDE doesn't work with daily builds.  So you 
are effectively stuck until there is a ChimeraX 1.4 release and ISOLDE 
is updated for 1.4.


In the interim, you might be able to run ChimeraX in a singularity or 
docker container that is based on Fedora 33.  Or it might work in a 
virtual machine.  I think a singular container version would be best 
(most efficient and performant), especially if the graphics driver is 
the same version as the one in the host OS.  But I've been pleasantly 
surprised with how well ChimeraX graphics works on a Linux VM running in 
VmWare Workstation on my Windows desktop.


     Best,


     Greg


On 1/26/2022 12:17 PM, Nicholas R Silvaggi via ChimeraX-users wrote:
> Hello,
>
> I am just getting started with ChimeraX. I installed the latest 
> production release (Centos 8 version, ucsf-chimerax-1.3-1.el8.x86_64) 
> on my Fedora 33 workstation. It worked great. I installed Isolde and 
> Clipper through the help viewer winder and everything was great. 
> Yesterday I upgraded the operating system to Fedora 35, and now the 
> help viewer no longer works. It is just blank. I can't get it to show 
> other web sites, files from my hard drive - nothing. I installed 
> ChimeraX on 3 other workstations, and all have the same problem. This 
> is very curious and there is no error output that I can find to help 
> point me to the problem. Has anyone else experienced this?
>
> Thanks for your help,
> Nick Silvaggi
>
> P.S. I also tried uninstalling the production release and installing 
> the Centos 8 version of the latest nightly build - same problem persists.
>
> Nicholas R Silvaggi, Ph.D.
> University of Wisconsin, Milwaukee
> Department of Chemistry and Biochemistry
> 3210 North Cramer St
> Milwaukee, WI 53211
>
> Office: Chemistry 372D
> Phone: 414-229-2647
> silvaggi at uwm.edu
>
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