{"id":422461,"date":"2025-02-19T20:54:25","date_gmt":"2025-02-19T20:54:25","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumerical-gui-issue-on-linux\/"},"modified":"2025-02-19T20:54:25","modified_gmt":"2025-02-19T20:54:25","slug":"lumerical-gui-issue-on-linux","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/lumerical-gui-issue-on-linux\/","title":{"rendered":"Lumerical GUI Issue on Linux"},"content":{"rendered":"<p>&lt;p&gt;Hi,&lt;\/p&gt;&lt;p&gt;We installed Lumerical V251 and V242 on our Linux server machines, and I am trying to run simulation via lumapi api.&nbsp;&lt;\/p&gt;&lt;p&gt;The first issue is that seems none of the visualizers is not working for V251, but they are fine on V242. If we open up a visulizer in V251, it just shows as a black window, but seems the tabs (although not visible) are still functioning, if we try to click blindly we can see subwindow pop-up. Interestingly, I also installed V251 on my window PC, it seems working fine.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;&lt;p&gt;Another issue is when I try to use lumapi to call FDTD, there is a black window pop up without showing the GUI, and after sometime it would crash without saving. It seems the software is successfully started, I tested it by use save() command to save the scripted simulation before the black window close by itself, and open the saved file on my windows computer, it seems very things is setup. This happens for both V251 and V242. I attached some screenshot FYI. I believe this issue is different from the last one, cuz the same code can run on another Linux server with same Lumerical version without this issue. So I assume this is related to some compatibility issue on my end, and I wonder how to solve it?&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/02\/19-02-2025-1739998047-mceclip0.png\" \/><img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/02\/19-02-2025-1739998047-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;Thanks! Any advice would be appreciated!&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-422461","topic","type-topic","status-publish","hentry","topic-tag-crash","topic-tag-fdtd","topic-tag-gui","topic-tag-lumapi-2"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_forum_id":["27833"],"_bbp_topic_id":["422461"],"_bbp_subscription":["45962","4274"],"_bbp_author_ip":["206.87.146.47"],"_bbp_last_reply_id":["423136"],"_bbp_last_active_id":["423136"],"_bbp_last_active_time":["2025-02-25 07:50:01"],"_bbp_reply_count":["12"],"_bbp_reply_count_hidden":["0"],"_bbp_voice_count":["2"],"_bbp_engagement":["45962","4274"],"_btv_view_count":["504"],"_bbp_topic_status":["unanswered"],"_edit_lock":["1740076475:473055"]},"test":"mathewyuece-ubc-ca"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/422461","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/422461\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=422461"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}