Comment # 8
on bug 109887
from Andrew Sheldon
I also can confirm the problem, and it seems to have gotten worse since 5.3.0-rcX. In past kernels, you could kind of work around it by setting slightly less conservative undervolts and it would work. If you go past a certain point (a point that works fine if the pp table is overridden), it would wrap around to 1.2V. For reference this around 950mv at state 6/7. Now with 5.3, even that same relatively conservative undervolt would immediately jump to 1.2V under load. As hagar-dunor suggested, manually overriding the entire PP table, works around the problem.
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