On Tue, 28 Nov 2017, Maarten Lankhorst wrote:
> Op 28-11-17 om 10:30 schreef Thomas Voegtle:
>> On Tue, 28 Nov 2017, Maarten Lankhorst wrote:
>>
>>> Op 27-11-17 om 19:09 schreef Thomas Voegtle:
>>>>
>>>> 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 <[email protected]>
>>>> 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
>>>>
>>> Could you send some logs with drm.debug=0x1f ?
>>>
>>> ~Maarten
>>
>> dmesg attached.
>
> Does this work? A log of a working config (4.14 or with revert) would be nice regardless. :)
Yes, that helps. 4.15-rc1 with that patch applied the system enters pc2
and pc3 again.
attached: dmesg.4.15-rc1.with.patch.txt
Ah, sorry for just sending the log of the not working stuff.
4.14 is broken, too, 4.13 was ok, so I attached
dmesg.4.15-rc1.with.revert.txt.