10-20-2019 10:29 PM
I also have a P53 and (I believe) I was able to overcome the CPU throttling by setting
tuned-adm profile throughput-performance
See if that works for you.
10-22-2019 03:13 AM
I can report success with BIOS 1.20 on my X1Y4 (i7-8665U) on Fedora 31, I've been able to disable throttled and am now achieving all-core boost speads of 3.4-3.8Ghz during sustained compiles, with throttling at ~96 degrees and power use of 27-30W.
Is throttled stil useful for undervolting? My power consumption at idle seems to have dropped to 7-8W also, so I'm getting 6-7hrs of battery life with the 4K screen, which I'm happy with.
I would not I could not use fwupdmgr in Linux or Lenovo Vantage in Windows to upgrade, and had to manually download and install the Windows-based upgrader. However now that I have upgraded fwupdmgr is offering BIOS 1.22 with "microcode updates." Can anyone comment if this is more than just the latest SPECTRE et al. mitigations?
10-22-2019 03:20 AM
Is throttled stil useful for undervolting?
Yes, as well as PL1/PL2 adjustments (AFAIU artificial power limits didn't go anywhere, they were just made less stupid).
10-23-2019 01:03 PM
to answer your question. The fix will be for sure released too as usual way: BIOS Update (Bootable CD) and as BIOS Update Utility (Windows), additionally some models will receive it through LVFS.
As am I we all still have to wait for further investigation before Lenovo will publish a list of all affected models and release also the bios updates.
10-24-2019 01:10 AM
10-28-2019 12:25 AM
Real improvement with 1.15 firmware on X390.
No more throttling with daily use (it seems)
Thanks Lenovo !