The doc-string for org-image-actual-width states that image width can be set using #+ATTR.* keyword (note that it is all capital letters). However, org-display-inline-images only looks for lower-case #+attr_:
(re-search-forward "^[ \t]*#\\+attr_.*?: +.*?:width +\\(\\S-+\\)" (org-element-property :post-affiliated paragraph) t) If case-fold-search is set to 't, and the value of org-image-actual-width is set to a list, #+ATTR_ORG: :width specifications are always ignored, while they should not. Best, Ihor Emacs : GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit) of 2019-04-29 Package: Org mode version 9.2.3 (9.2.3-17-g4df705-elpaplus @ /home/yantar92/.emacs.d/elpa/org-plus-contrib-20190513/) -- Ihor Radchenko, PhD, Center for Advancing Materials Performance from the Nanoscale (CAMP-nano) State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China Email: yanta...@gmail.com, ihor_radche...@alumni.sutd.edu.sg