This seems to have been introduced between 5.0 and 5.1. Pressing the Home or End key should (and used to) move the cursor to the start/end of the current line. This still works in Writer, however, in Impress, Home/End has stopped working entirely. Pressing them has no effect. page up/page down keys still work as expected.
Can not confirm On Windows 10 Pro with Version: 5.1.1.1 (x64) Build ID: c43cb650e9c145b181321ea547d38296db70f36e CPU Threads: 8; OS Version: Windows 6.19; UI Render: default; Locale: en-US (en_US) Version: 5.0.2.2 Build ID: 37b43f919e4de5eeaca9b9755ed688758a8251fe Locale: en-US (en_US) Don't have a 5.1.0.3 install at the moment--if anyone else wants to check. STR: 1. open new Impress document 2. take title slide default 3. click and enter text in title 4. click and enter text in text box 5. navigate to title 6. <end> key move to end of title? 7. <home> key move to beginning of title? 8. navigate to text box 9 add multi lines of text 10. cursor key navigate between lines 11. <home> key move to beginning of line? 12. <end> key move to end of line 13. change line repeat moves beginning/end Seems to work correctly.
I can not confirm with Version: 5.2.0.0.alpha0+ Build ID: 91a7580e03d5b47c6e2513afce85ddee45e730b6 CPU Threads: 4; OS Version: Linux 4.2; UI Render: default; TinderBox: Linux-rpm_deb-x86_64@70-TDF, Branch:master, Time: 2016-02-04_00:17:43
Fixed by Caolán in https://cgit.freedesktop.org/libreoffice/core/commit/?id=758a50110aae8c0b339e3230b39f8d8343ce6bbc but was too late for 5.1.0.3 *** This bug has been marked as a duplicate of bug 91909 ***