Remote control longpress question.

    Hello. I have an issue where the long down arrow press on my TV remote is not scrolling down title lists of my RPi/libreelec/Kodi. It used to work fine with the remote of my LG television, but I recently changed to a Cello TV, and now although everything else still works, the repeated up/downscrolling does not, meaning that I have to keep pressing the up/down arrows to move up/down more than once. I'm pretty certain that this is going to reduce the working life of the affected button :) Long pressing the left and right arrows still works, but that is of much less use to me.

    I know that the remote is continuing to send a signal, since a flashing indicator on the front if the TV tells me so. Is there any possibility of getting this working as before?

    Try and play a little bit with these settings for the CEC adapter:

    • Remote button press repeat rate (ms): 100
    • Remote button press delay before repeating (ms): 200
    • Remote button press release time (ms): 0

    Settings -> System -> Input -> Peripherals -> CEC Adapter

    Many thanks for the reply, but I'm afraid it didn't help. In fact, I already had those values set, since I'd seen it mentioned in another post while I was searching for suggestions. I've tried all kinds of other values, too, but without success.

    Appears like a firmware issue of your Cello TV. To diagnostic what happens in detail, you could enable the KODI debug logging and watch with tail -F /storage/.kodi/temp/kodi.log which key events will be received from your TV via CEC during you held the up/down arrow keys and if there is a different to left/right arrow keys.
    Some TVs interprets a long press signal from the remote control as a different function or the remote control sends a different key instead of repeating. If there is send a different key via CEC, then you could map this to Channel Up / Down to have page wise scrolling to mitigate the issue.

    Only the last entry here is a longpress (the others are just presses). It looks like it can't see any difference between short down and long down.

    2025-05-13 11:20:40.137 T:1020 DEBUG <general>: PushCecKeypress - received key a9 duration 0
    2025-05-13 11:20:40.145 T:982 DEBUG <general>: HandleKey: 169 (0xa9, obc86) pressed, action is Left
    2025-05-13 11:20:41.541 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 0
    2025-05-13 11:20:41.558 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 11:20:43.117 T:1020 DEBUG <general>: PushCecKeypress - received key a6 duration 0
    2025-05-13 11:20:43.128 T:982 DEBUG <general>: HandleKey: 166 (0xa6, obc89) pressed, action is Up
    2025-05-13 11:20:44.302 T:1020 DEBUG <general>: PushCecKeypress - received key a7 duration 0
    2025-05-13 11:20:44.313 T:982 DEBUG <general>: HandleKey: 167 (0xa7, obc88) pressed, action is Down
    2025-05-13 11:20:47.825 T:1020 DEBUG <general>: PushCecKeypress - received key a7 duration 0
    2025-05-13 11:20:47.828 T:982 DEBUG <general>: HandleKey: 167 (0xa7, obc88) pressed, action is Down

    I've noticed a difference between the longpress Down (above) and the longpress Right. The Right longpress shows multiple entries with increasing durations. With the Down, there are no repeats.

    2025-05-13 15:06:06.820 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 0
    2025-05-13 15:06:06.825 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 15:06:07.478 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 658
    2025-05-13 15:06:07.494 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 15:06:07.679 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 859
    2025-05-13 15:06:07.680 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 15:06:07.879 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 1059
    2025-05-13 15:06:07.893 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 15:06:08.079 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 1259
    2025-05-13 15:06:08.089 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right
    2025-05-13 15:06:08.279 T:1020 DEBUG <general>: PushCecKeypress - received key a8 duration 1459
    2025-05-13 15:06:08.293 T:982 DEBUG <general>: HandleKey: 168 (0xa8, obc87) pressed, action is Right

    I'm guessing that the 200ms between each press is coming from the setting currently configured for the CEC adapter. I'm also guessing that although the remote is sending long Down presses (or at least sending something), the TV is not forwarding them like it does for Left and Right.