Hi
There is issue with my coreelec. First I thought it was RGB and YUV incompatiblity. As RGB was giving me better colors but not bright as it should be.
Later I found out after cleaning cache everytime I play movie with comman ( find /storage/.cache -mindepth 1 -maxdepth 1 ! -name ‘connman’ ! -name ‘ssh’ ! -name ‘cron’ -exec rm -rf {} +) gives me best picture quality. I am using NG build 20251002. But everytime watching movie need to reset or clear cache. Can you please sort this out. Thanks
NG is EOL, so no.
How should clear the cache improve picture quality?
picture quality issue
Hi CoreElec team,
There is issue with my coreelec.
When I play HDR movie after DV colors are washed out or jitters. But after clearing cache its fine. same goes to DV . After playing HDR , DV does not play good color looks bad.
i use these commands
rm -rf /storage/.cache
sync
I have to run this everytime I play some movie.
Can you please sort this issue out. Rest is fine NG build 20251002 is quite smooth as compared to previous build.
Thanks
And what exactly is under /storage/.cache that is kodi or playback related?
And no need to make 1000 same posts.
Its related to playback. It seems like color get stuck specially When I change movie from DV to HDR movie . It effects color and playback both. Sometimes black seems to be crushed. Until I clear cache and Reset HDMI through command.
Explain why clearing /storage/.cache helps? There is nothing video related there.
And how do you reset HDMI?
by command
# Reset HDMI pipeline
echo 0 > /sys/class/amhdmitx/amhdmitx0/attr
sleep 1
echo 1 > /sys/class/amhdmitx/amhdmitx0/attr
After this command I have really good playback and picture colors. I do not know if its video related or Kodi related. But It seems like color stuck or can not go back to normal after playing some video. I have had this problem in older firmware builds as well. But I recently found out. It works for me.
So it is HDMI and not .cache folder.
And probably related to used equipment. I wonder why no one else needs to run this commands.
This is full command I run everytime I play any movie. I have no idea. I have sony bravia 8 and running 20251002 NG. This is the only problem I have. I was wondering if I would be able to make some button next to play or stop to press which execute this command and dont have to give command everytime.
# Clear CoreELEC cache except connman, ssh, and cron
find /storage/.cache -mindepth 1 -maxdepth 1 ! -name ‘connman’ ! -name ‘ssh’ ! -name ‘cron’ -exec rm -rf {} +
# Sync to ensure cache is flushed
sync
# Reset HDMI pipeline
echo 0 > /sys/class/amhdmitx/amhdmitx0/attr
sleep 1
echo 1 > /sys/class/amhdmitx/amhdmitx0/attr
But running both commands work for me, Specially cache command. I tried to reset HDMI which did not work without cache command.
As said already, update to CE-NO.
CE-NG is EOL and such requests will be ignored.
You can make your own script when you think it helps you and execute it on every start.
But then he will loose the “Holy grail” DV + FEL
I have two amb6+ both with CE NG, never have such issue.
The NG version is stable, try to made new pendrive/sd card with fresh install of CoreElec.
@Tim_Taylor Yes , Holy Grail , have you problem with that?
The HW/SW combo AMB6+/CE NG, ist simple the best for DolbyVision.
All N2(+) users have 
Nope, because FEL is just overrated, I have no problem
But the “Holy grail” only works on old NG release whithout active development,
but some users don’t understand what EOL means
BTW:
I´m not only N2(+) user
Then good. 
I have 6 years old bluray player, and no development for that.
And You don´t ask any developer to fix something.
CE developer ask for update to CE NO every day in case of special issues running EOL release NG, this will certainly continue for many years/decades
When was working, no need to fix it.
As I said, it’s just working as need.
Stable, quick, “can” play loseless Dolby Vision, and loseless audio formats when the source is that.
No other box/sw combo can that.
I have no idea . Why do I have this problem with picture I have to go through all that its crazy. Anyway these commands work for me. But I do not that that problem when I use RGB but RGB picture is dim and YUV is better and bright. And NO does not support DV yet.
When starting an HDR10+ movie, when back to home, the color is not correct I need to start SDR movie to make it back to normal, it happens when using a TV but not the projector, I didn’t figure out why, not sure if it’s the same as you describe, but it’s not an Ugoos so surely something very different.
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