Messages in this thread | | | Date | Mon, 27 Nov 2017 19:09:13 +0100 (CET) | From | Thomas Voegtle <> | Subject | v4.14/v4.15-rc1: deferred setup in drm/fb-helper breaks entering pc3 |
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Hello,
with v4.14 I recognized that my file server (headless haswell system) doesn't enter packages pc3 anymore and only enters pc2 according to powertop. In v4.13 the system used pc2 and pc3.
So I bisected that down to:
ca91a2758fcef6635626993557dd51cfbb6dd134 is the first bad commit commit ca91a2758fcef6635626993557dd51cfbb6dd134 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Jul 6 15:00:21 2017 +0200
drm/fb-helper: Support deferred setup
Reverting this commit on top of v4.14 and v4.15-rc1 fixes the problem and the system uses package states pc2 and pc3 again.
Nothing is connected to the VGA and DVI port. I'm using a kernel without modules on openSUSE 42.3. I have no "vga=xxx" or something like that on the cmdline.
Thanks,
Thomas
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