u/madmagic008

Fedora 43, gnome on a laptop with Intel audio (Realtek ALC245 ). Kernel ver 6.19.11-200.fc43.x86_64.
Laptop model is HP omibook ultra flip 14.

After suspend/resume (S2idle only, no deep sleep available), audio gets incredibly stuttery, but its odd:

• Either constant stuttering (multiple times per second)
• Or crackling / static distortion
• Often both
• First boot is always fine
• It does NOT always happen after resume, but when it does, it persists until reboot

Stuff ive tried and noticed:

• PipeWire / WirePlumber restart does not fix it, restarting the entire stack also doesnt fix it
• ALSA reset (alsactl init) does not fix it
• Kernel logs show CS35L41 “Asserting Reset” around the time i wake it up from sleep

Temporary odd fix i found:
- increasing pipewire's clock.force-quantum improves the stutter. at 4096 the stutter is completely gone but this static and cracking remains.

Again, this happens only after a resume from sleep but its important to note that not every resume this happens.

Another thing that might be important context:
- going to suspend by closing the lid and then resuming, causes touchscreen to completely break. event bus still shows touch events but whatever layer comes behind that refuses to translate it into mouse events or however it works. If i lock first (meta + L) then close the lid and resume again, touchscreen remains working. Also this is not super consistent

I need some googles and i dont want to risk cheaping out but i dont really know where to buy.
All stores i come across, also searched this subreddit, are stores in the US.

NL or close to NL would be ideal (for shipping costs), but if its just europe, that would also be great.

I got some powerfull +-450nm diodes but im not gonna touch those until i got some good goggles.

Im still a tad confused about the diode packages. Searching "TO-..." in google gives me poor results because it means many things as a word lol.

Is TO-9 the most standard package for these diodes or do they vary quite a bit? i assume if they do vary, its per power level that low power ones might have smaller packages? Also does the number always just mean the diameter so a TO-5 should be 5mm?

Whats the best way to propperly mount and heatsink these? Once again, poor results make it hard to buy pre-made press-fit mounts.

Im used to buying a cheap phone charger and taking it apart for a cheap and decent 5V power supply for my project.

However when i search for modules, theyre either very large or expensive. If phone chargers can be so relatively cheap, why are non phone chargnig 5v power supplies so relatively expensive and large?

Ideally, id love some premade modules (castellated pads would be ideal or just plain pins to use as THT could also work) that i can super easily add onto my own custom PCB's. Id rather not deal with high voltage AC stuff myself.

Tearing apart cheap phone chargers does work, but their design often makes it not so easy to implement neatly.