Android Impress remote app is at version 2.2.3 on play store and at version 2.3 on Fdroid. The version 2.3 on Fdroid properly connects and lets one change slides, but cannot show the slides on the mobile. Version 2.2.3 works fine.
Changed product from LibreOffice to Impress Remote Best regards. JBF
i tried impress remote 2.2.3 and 2.3.0 on android 8.0 and LO 5.4 on linux. No connection with bluetooth is possible, impressRemote always tells me about connection problems (btw, the mobile and the laptop can communicate over bluetooth easily) Trying 'experimental features' and Wifi ... i get to the point where impressRemote tells me a passkey (4 digit number) to enter in LO. In LO, the android device is shown, but after entering the number impress remote on the mobile crashes. So, this WAS working properly earlier, i'm not sure if this is attributed to android 8 or 7 (i tried both). Last working test was with LO 4 and android 6, since then both linux and android devices got updated and i didn't use it in the meantime. Now would be the time that i needed impress remote working again... :-)))
LibO 6.0.x, remote 2.2.3 and Android 6 (on an otherwise plagued by issues Galaxy S5 mini) appear to work fine with BT, with a linux host, just in case a tested combination can be of some help to you.
*** Bug 117076 has been marked as a duplicate of this bug. ***
I can confirm. Impress remote 2.3; Android 5; wifi and bluetooth connection.
*** This bug has been marked as a duplicate of bug 112483 ***