Just today i bough a samsung q990d and i’ve been using my nokia 8010 and when i plug my external ssd(sata enclosure) screen goes black.
I use the q990d so i can just easly passthrough my devices to the tv,so i dont have to deal with any potential delays and stuff.
Before i had the nokia plugged in the TV hdmi.
My coreelec install is running on a usb in the 2.0 port
The external drive connected to the 3.0 port.
I can 100% replicate this each time…
If i swap the external drive in the 2.0 port,everything seems to be just fine…no black screens…
Sounds like a different issue to the hdmi signal drop issue.
Perhaps post separately on the main page here
You may get more replies/help this way.
Also worth trying an AC powered usb hub or AC powered sata/hdd enclosure, hard drives, ssds, nvmes in enclosures imo always need a bit more power to get stability and speed in devices otherwise they cause issues. AC and wall plugged enclosures, no issues just in my experience at least.
I had similar issues playing some of my 4k@60hz/4k@59.94hz videos on my AM6b+. I whitelisted the 2 4920x2160 resolutions, and the signal drop went away. However, when I play those same videos, the audio would start right away, but the video doesn’t appear until 15-20 secs after. Not sure if this is directly related to your problem …
Not too much update on this issue, but I no longer spam test playing back 100s of videos since its obviously not the normal playback manner.
But I have been doing my tv-series with multiple episodes, and no issues with playback with signal dropping.
Maybe its like I suggested earlier the more the box got broken in and almost burned in, it seemed to reduce the issue. This could be wrong obviously and it could have just been due to using nighty builds and updated daily builds but I have gone back to the newest stable release last few weeks.
Am left wondering if the AM6+ hardware just needed to be broken in. Either way one has to expect the hardware is not going to be 100% given what we are getting which is pure brilliance from the CE team, keep up the good work.
I have still had the signal drop issue, but received my Denon receiver this week, since this haven’t had the issue, but haven’t had enough time to test to be absolutely sure. It’s not a great fix obviously, but for me it’s acceptable.
I have not experienced any signal drop for last month or so, but I no longer test it fully, but I just watch as normal lots of TV serials.
I think it either needed a good run in for a few months or you just sort of have to live with the issue since its not exactly a genuine or certified or approved type box the AM6+ and anything from china probably has zero QC anyhow, so guess one has to expect crashing and freezing.
My Nvidia shield pro was rock solid, stable and speedy and never really had a crash from it or dropped signal but for now the AM6+ will have to do.
One thing I would have liked to do is replace the thermal paste on the cpu, and add a small fan for cooling, sometimes it fixes hardware issues but at the same time it may not improve things so not really bothered. I don’t think anyone has taken apart their box to see if its got poor thermal pasting still.
I think I got similar issue but I don’t know if the cause is the same or not with am6b+. So far, it ran DV+FEL movies without issue. But when I play HDR10 movies, my PJ, Valerion Pro2 displays “no or weak HDMI signal” and the screen goes blank. For some HDR10 movies, I can press stop button on the remote which gets me back to PM4K screen.
However there is one HDR10 movie, Kingdom of the Planet of the Apes (2024), which causes coreelec to not respond at all. Once it happens, I will never be able to get coreelec to boot up and show the Kodi screen and I need to create the coreelec from scratch to the USB drive and ‘recovery’ button to boot into coreelec. If I write Coreelec into eMMC, I will have to re-flash Ugoos firmware to get it back.
By the way, playing the same HDR10 movie is fine if I use Firestick, with the same receiver which is Onkyo NR7100. I also tested AM6B+ with Optoma projector which shows the same symptom.
By the way, I have tried changing the color space as well as bit depth in Kodi settings → Systems → Video and the behavior doesn’t change.
I am using the latest stable build of Coreelec, v21.2. Kodi setting is 1920x1080p/60Hz. I feel that this happens when Coreelec tries to switch from 60Hz to 24Hz at the start of the movie.
But what is the difference Coreelec performs when playing DV and HDR10 movies?
That sounds pretty much what myself and others had, but to me at least it felt totally random with video files so sometimes one movie was fine but playing same movie back a 2nd time caused the hdmi signal drop issue.
And others did mention it felt like an resolution or frame rate issue also.
I gave up any other testing really, I think we have to understand the hardware or software is not going to be 100%.
If you box is fairly new, its possible it needs a bit of time to bed in my issue seemed to vanish or reduce after a good few months usage. I saw others who had the issue, some also had new boxes and sent it back.
Thank you for the reply. The box is new and has only been used for couple weeks. I also noticed that Fire TV Cube 2ng gen could be an alternative to Uggos am6b+ as they are using the same CPU. It is also cheaper because all you can buy are used. Has anyone tried that box?
I did consider trying the Fire TV Cube 2ng gen, but 2gb ram, 100mb ethernet… the AM6+ at least gets the basics right with 4gb ram, 1gig ethernet and plenty usb ports.
The one thing I would have liked to try, is undo the AM6+ box and replace the thermal paste under the heatsink and check for cooling, Its always possible these boxes are like the mini pcs from china and have poor thermal paste and poor cpu contact.
But since the issue seemed to vanish after a few months use perhaps the thermal paste started to kick in and work, so left that idea.
The AM6+ is still the kodi box to get really, its possible the Homatics 4K Plus box is a good alternative also but its meant to be a tad slower than the AM6+ but the benefit of having a decent Android 14 experience although a few bugs are still there.
I have been doing more investigation on this. I did a fresh flash of Ugoos 0.5.4n and CoreElec v21.2. I set color space and bit depth to 422/12 in both Ugoos and Kodi. So far, it has been stable for more than a week for all HDR movies which have had trouble playing. Finger crossed.
4GB is nice, but not needed for CE. There was a thread on here where people were posting screenshots of their video playback settings, which includes used/available RAM. I didn’t see any screenshots with more than 2GB out of 4GB RAM used. It’s possible to use more than 2GB, but seems to be atypical.
A Gbit USB Ethernet adapter over USB2 gets ~300Mbps, more than 3-5x the average bitrate of most Blu-ray remuxes. 1000Mbps doesn’t really provide much more tangible benefit.
This isn’t to say that the 2nd gen Cube is better than the AM6+, just that the importance of 4GB RAM + Gbit ethernet is somewhat exaggerated.
The Cubes and Odroid N2/+ do have the best passive thermal management of any AML devices.
The heat sink is most of the internal volume (and why the Cube weighs 2x the AM6+). Most Amazon flag-tier devices have very good build quality despite the shortcomings of FireOS.
I haven’t experienced any signal/picture drops on the 2nd gen Cubes, but I also don’t have an AVR in the mix.
If it’s used, it needs to be on firmware below PS7603 or it can’t be unlocked to boot CE. The seller would either have to have been blocking updates for the past 2-3 years or had it turned off during that time.
Unless the seller knows what they are doing, even asking them to turn it on to check the firmware version risks updating it in the process.
I do like the amazon fire sticks (cube 2nd/3rd gen supports it see post below), but found out it doesn’t support ntfs natively, so if you plug in say hdds,ssds or usb flash drives with ntfs and video files its not going to see it even. There are some work arounds, but nothing that interested me since its for family users more so.
Picked up an Homantics 4K R plus box for £59.99 through aliexpress, which is awesome but has its bugs, but I do miss that android experience so its nice to have all the streaming apps and google playstore and certified for streaming also back again. Only had it for 2 weeks but its not going to beat the AM6+ for the number of file types you can play back, but I don’t need fel or anything fancy.
