It seems like the Kodi screensaver activates the TV over CEC.
Test these workarounds:
where can i find that file?
RPi picture is often too dark / bright, compared to TV channels. Use a different picture blending mode for HDMI input, which is part of your TV settings. Works fine for me.
Always use the search function from the main page of the forum. We have a showcase about power button: Click!
PS: GPIO layout is different for your hardware - connect the power button correctly.
Hello and thanks for all the tip here. Just one thought, can i change dtoverlay=gpio-shutdown to dtoverlay=gpio-reboot if i just want to get the pi out from halt and just reboot?
Sure. First try without keyboard.xml. If you get a menu screen instead of instant reboot, use keyboard.xml, and replace shutdown by reboot.
PS: Be sure to test new hardware with a stable LE version. If you test hardware with nightly / alpha builds, you'll have trouble to identify mismatches.
Could be a bug of your nightly build:
2021-12-24 01:49:46.401 T:1080 INFO <general>: CAESinkALSA - ALSA: /var/lib/jenkins/LE/build4/workspace/RPi4/LibreELEC.tv/build.LibreELEC-RPi4.arm-11.0-devel/build/alsa-lib-1.2.5.1/src/pcm/pcm.c:2660:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
2021-12-24 01:49:46.402 T:1080 INFO <general>: CAESinkALSA - Unable to open device "surround71" for playbackGo back to the latest stable version, and report.
Please check the RPi PSU for enough wattage, or use a separately powered USB hub. Also have a look at the logs. Generally be analytic before sending stuff back.
That's good news, because the driver exists for your new device. 
We have success stories for other USB sound cards, but a 6-channel one is new to me. So yes, other RPi forums are a good idea.
Use a fast, blue USB port for the USB sound card. If the issue persists, post a log.
Yes, switching among different audio outputs is possible by software. So in theory it can be automated, depending on what you play.
Now autostart.sh run the modules ir_rc6_decoder, rc_rc6_mce and mceusb but the ir-receiver stills no working.
Disable autostart.sh for testing, and run modprobe <kernel_module> manually on SSH terminal. Do you get any errors (make sure you load kernel modules in the right order)? Do you see the IR receiver on lsusb after this?
We don't have such a list, sorry. If the USB sound card works on RPi OS, then it will work on LE, too. So check RPi OS forums, who have larger audience.
PS: The DAC manufacturer should be able to tell you more about Linux capabilities. It's not our turf.
I haven't seen such a DAC on this forum so far. There are many A/V codecs, and it's hard to say whether the Linux driver can handle all of them. So yes, it's trial-and-error for A/V codecs.
LE can deal with high sampling rates on HD music, as you can see here. Chances are good that your DAC will work for this.
Oh man, that's one of those high-end DAC's. Internet says, it has Linux support, so it should work with LE. Hardware limitation is basically the data rate of your USB port - the DAC handles up to 768kHz / 32 Bit PCM!
Audio channel / sampling options should be offered by the Linux driver, and LE will provide dedicated entries. So if the driver is available for your chipset, new output entries will appear on LE's audio settings.
Because it's rare hardware, I can't say which options you'll get. Here is the data sheet of the chipset:
https://www.mouser.de/datasheet/2/1082/ES9038PRO_Datasheet_v3_6-1923511.pdf
dherrman No problem. Everybody seems to be super busy these days, including me. 
Stable, but in LE9 the addon of all public german streams e.g."ARD mediathek" are throwing an error.
It's pretty experimental now, but maybe we can fix it with a log.
