https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321005#M8006 <P>Yes I have installed libreOffice headless</P> Tue, 25 Jul 2017 14:21:52 GMT Santosh_Yadav 2017-07-25T14:21:52Z https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321003#M8004 <H2>Hi, I have deployed nuxeo 9.1 on Red Hat Enterprise Linux Server release 7.3 &amp; in that I have installed libreoffice-4.1.2. When I am trying to open viewer for doc/excel file, I am getting following error:</H2> <H2>[/usr/lib64/libreoffice/program/soffice.bin X11 error: Can't open display: , Set DISPLAY environment variable, use -display option, or check permissions of your X-Server, (See "man X" resp. "man xhost" for details)]</H2> <P>Can any one solve this issue!!</P> Tue, 25 Jul 2017 11:19:40 GMT https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321003#M8004 Santosh_Yadav 2017-07-25T11:19:40Z https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321004#M8005 <P>Maybe should you install libreOffice headless or start it with headless parameter</P> Tue, 25 Jul 2017 11:30:16 GMT https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321004#M8005 pibou_Bouvret 2017-07-25T11:30:16Z https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321005#M8006 <P>Yes I have installed libreOffice headless</P> Tue, 25 Jul 2017 14:21:52 GMT https://connect.hyland.com/t5/nuxeo-forum/pdf-viewer-not-working-in-red-hat-enterprise-linux-server/m-p/321005#M8006 Santosh_Yadav 2017-07-25T14:21:52Z