Further update :-). I tried 1080p in the HDMI settings, and disabling HDMI frame rate matching, and still the problem persists. One further observation however is that when the box seemingly freezes (when sometimes coming out of standby with a purple screen), and although the box is unresponsive to the power button on the remote or on the box itself, if I leave it alone (don't power cycle the box myself) the box will eventually reset itself and boot up (showing the youview logo screen before showing the TV channel and UI again). This to me looks like a watchdog timer sees the box is locked and performs a software reset. So further evidence the box is locking up and it's not an HDMI issue.
Perhaps you simply have a faulty box.
Hi @Chips2. Are you able to try factory resetting your device? If not a full one then you can try a maintenance mode reset first with the option to keep recordings.
Thanks @Chips2, that sounds significant and we will add it to our investigation. If you're willing to, could you see if a Maintenance Mode reset (keeping recordings) helps anything, if not a full factory reset? That's the closest thing to a replacement box that you could try to resolve the issue.
Hi @Rohit. After over a week no bt box freezes if I turn the TV on first before the bt box. To me this is clearly a HDMI-CEC issue with the bt box itself as it’s the box that locks up. Never seen this issue before on any other external device connected to this same TV. It looks like some kind of failed hdmi handshake which causes the bt box to wait indefinitely until it times itself out (probably a watchdog timer) that then forces the bt box to reset itself. Will this be reported to the system software engineering team? Thanks.
@Rohit @Chips2 I have a curiosity that is nothing like as serious as this, but does concern differing behaviour if I turn on my T4000 before my TV, or vice versa.Starting state in both cases is T4000 in standby on the HDMI 2 input of an LG GX TV in standby, and an LG GX soundbar in standby on HDMI 3 (eARC) of the TV.IIf I turn on the TV first, then the TV starts the soundbar, and the soundbar sets itself for eARC. If I then turn on the T4000, the TV switches to that HDMI input, the soundbar stays on eARC, and all is well.However, if I turn on the T4000 first, then this starts the TV, switched to HDMI 2, and it or the TV starts the soundbar on HDMI 3; but the soundbar switches to its HDMI input (to which only an HDMI cable is connected, with nothing on the other end in this scenario), and not to eARC.So we get the picture from the T4000, but no audio, as the TV doesn’t switch back to its internal speakers, and the soundbar isn’t listening for eARC.So we either have to switch everything back to standby and start again, TV first, or get the soundbar remote and switch the soundbar input to eARC.I know CEC is a minefield, and the incorrect behaviour when we switch on the T4000 first could be caused by any one, or any combination, of the three devices; but it is a difference we observe, depending on whether we switch on the TV first, or the