I had been testing ACPI 3.19.15 on a Lenovo L420. In general terms it seems stable and didn't give any boot problem or strange message.
I have a Lenovo ThinkPad T510, and I can say that overall, it works pretty good, but I still can't get my realtek WiFi to go. That seems to be a problem where GENMAC doesn't get the IRQ that everything else says it has. We desperately need MultiMac to support these things.
The baterry widget stopped working. So after reading the readme I disable all the stuff on the config sys and reinstalled it. The widget started to work.
I just installed over the old ACPI on my main machine (Asus M3A78-EM ith quad core AMD Phenom processor). It all worked okay, but I later realized that there was a LOT of junk left over from the older ACPI. The Reactor temperature widget has never worked on that machine, but I discovered that if I select the Asus P5B motherboard setting in the widget properties, it does work.
For the T510, I uninstalled ACPI, using WarpIn, cleaned up the left overs, and installed ACPI 3.19.15 new. The battery widget works fine, but the Reactor Temperature widget tells me that the machine is at 429496456 C. I suspect that that isn't quite right, since I am still here. I did try the old Thermal.EXE program, and it tells me the proper information, so it seems to be a widget problem.
The "ACPI Power" icon made on the desktop folder by the installer is not pointing to the right path /ecs/bin, but that is a simple error on the WarpIn script.
I see that too. Yes, it is an error in the way it is done.
I still need to test further the standby/resume function.
On the T510, it looks like standby works okay, for me, but resume is a no go. I think it actually does the resume, but it never turns the screen backlight on, so I can't tell for sure.