Comment 0 for bug 1863489

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arno (star-gmx) wrote :

It seems that the i915 intel grafic driver in newer kernels (observed with 5.3) doesn't support energy saving.
How do I know that? Using powertop shows in idle tab the GPU - and this shows only : GPU power on 100% - no rc6 or deeper states are used.
For some strange reason also the packet (summery?) shows in all states 0%, although I can observe the individual CPU cores are in different power states.

The previous parameter enable_rc6 is not existing anymore.
The other possible energy saving parameter enable_dc (if set to 1 or 2) results in log with:
setting dangerous option enable_dc - tainting kernel.

Any idea what might go wrong there?