[Sony Xperia S, Acro S, Ion] Tuatara:
ROM issues (5.1.1 beta) ...

I've had the sound stop (lockup?) once myself. For some reason there were no notification alerts, or message arrival sounds - although a phone call did ring the phone. Very strange. A power off/on solved the issue ... but that's a drastic solution.

It's been very smooth for me too ... although I had the occasional touch issue as well - delayed, or no response at all to a touch - but not accidental touches. I've (mostly) solved this "irritation" by putting the governor into "performance" mode which keeps the CPU running at full speed all the time (i.e. in a "race to idle" condition - get everything done as fast as possible, and then sit in a (lower power) idle loop). While this isn't as good as slowing down the CPU, it works quite well. Lollipop has a lot more overhead, which our devices were not designed for ... so adding some more "oomph" to the CPU/processing can't hurt. Battery drain hasn't been noticeable, it lasts for the whole day for how I use it - so I'm going to continue using my phone in this way.

A few posts earlier I also noted random reboots. These are still continuing - and they appear to happen when I attempt to use the phone again (i.e. wake-up from movement, screen comes on, phone locks up, and then reboots - leaving me watching the boot animation until it fully boots and I can use the phone). [MENTION=4074348]BPaul[/MENTION] - I'm not sure which/where/what logfile which might help you figure this out - Please let me know what I could get for you the next time this occurs?

I have also had the SD Card unmount once on me - At the time I assumed it was from a physical issue (phone was bumped?), but if others are having this issue - possibly not. Attempting to remount the sdcard would not work. Again a power off/on resolved it.

I have also had the 3G network lock-up and become unresponsive. The 3G network itself was fine, as I had my Nexus 7 tablet with me, and it still had full 3G connectivity. Switching Airplane mode on/off did not resolve this - only a power off/on sorted it in the end. Worked immediately fine once it restarted.

There have also been a few issues with WiFi <-> 3G handoff for VoIP services ... such that the VoIP app is unable to detect the network switch - locking up, and requiring a stop/start in order to work again. This issue is not happening in my Nexus 7 tablet (same OS/version/app). I'm now carrying the tablet around with me for the VoIP connectivity, but I'd rather just be using the phone if I could.

[MENTION=4074348]BPaul[/MENTION]: Thank you for the time you've invested in making this AOSP ROM. I'm amazed that it's available, and truly appreciate the work you've put into this. Please let me know how I can help you resolve some of the remaining issues (logfiles, tracing, testing, etc.) in this beta release. While power off/on appears to resolve all of the issues, it's not the best solution. Since it is a reset operation which fixes things - it must be down to subtle interaction issues (flags not resetting, resources not released, files/device handles not closed) which is causing the problems. Let me know what I can provide you with to assist you in debugging. I'd like to help you make this ROM 100% solid!

Cheers,

Tuatara.