High cpu temperature and fan when loading i195 kernel module

[Luca Franchini]

Hi all,

(always trying to lower cpu temp)

kldloading drm and i915
has come to my attention this log line:

error: [drm:pid-1:csr_load_work_fn] *ERROR* Failed to load DMC firmware [
https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling
runtime power management.

Is this a normal behaviour in DFly?


from messages:

Sep 16 09:04:35 amidatacyber730 kernel: drm1 on vgapci1
Sep 16 09:04:35 amidatacyber730 kernel: [drm] pdev:  vendor=0x8086
device=0x191b rev=0x06
Sep 16 09:04:35 amidatacyber730 kernel: [drm]       svendor=0x17aa
sdevice=0x5050 irq=17
Sep 16 09:04:35 amidatacyber730 kernel: _pci_get_rle: dinfo was NULL,
trying again with parent
Sep 16 09:04:35 amidatacyber730 kernel: pci_resource_len(0x191b, 0x10) =
0x1000000
Sep 16 09:04:35 amidatacyber730 kernel: WARN_ON(domain->wake_count ==
0)<4>WARN_ON(domain->wake_count == 0)<4>WARN_ON(domain->wake_count ==
0)_pci_get_rle: dinfo was NULL, trying again with parent
Sep 16 09:04:35 amidatacyber730 kernel: pci_resource_len(0x191b, 0x18) =
0x10000000
Sep 16 09:04:35 amidatacyber730 kernel: _pci_get_rle: dinfo was NULL,
trying again with parent
Sep 16 09:04:35 amidatacyber730 kernel: pci_resource_len(0x191b, 0x10) =
0x1000000
Sep 16 09:04:35 amidatacyber730 kernel: [drm] Memory usable by graphics
device = 4096M
Sep 16 09:04:35 amidatacyber730 kernel: [drm] Supports vblank timestamp
caching Rev 2 (21.10.2013).
Sep 16 09:04:35 amidatacyber730 kernel: [drm] Driver supports precise
vblank timestamp query.
Sep 16 09:04:35 amidatacyber730 kernel: i915/skl_dmc_ver1.bin: could not
load firmware image, error 2
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.eDP-1 is not set
Sep 16 09:04:35 amidatacyber730 kernel: error: [drm:pid-1:csr_load_work_fn]
*ERROR* Failed to load DMC firmware [
https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling
runtime power management.
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.DP-1 is not set
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.HDMI-A-1 is not
set
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.DP-2 is not set
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.HDMI-A-2 is not
set
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.DP-3 is not set
Sep 16 09:04:35 amidatacyber730 kernel: tunable drm.video.HDMI-A-3 is not
set
Sep 16 09:04:35 amidatacyber730 kernel: drm1: taking over the fictitious
range 0xe0000000-0xf0000000
Sep 16 09:04:35 amidatacyber730 kernel: kms console: xpixels 1920 ypixels
1080
Sep 16 09:04:36 amidatacyber730 kernel: [drm] Initialized i915 1.6.0
20160425
Sep 16 09:04:37 amidatacyber730 kernel: [drm] RC6 on
Sep 16 09:04:38 amidatacyber730 kernel: md2: Malloc disk


# uname -a
DragonFly amidatacyber730.mia.casa 4.8-RELEASE DragonFly
v4.8.1.5.g69508-RELEASE #0: Thu Aug 24 17:52:27 UTC 2017
 root at amidatacyber730.mia.casa:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64


Luca


2017-06-12 23:00 GMT+02:00 Luca Franchini <calicant at gmail.com>:

>
>
> It should help, Imre pushed it to fix excessive power consumption he saw
> on a Broadwell machine.
>
> It is not enough by itself though, something is deeply wrong with Skylake
> mobile platforms.
>
>
> This does not bring comfort...
>
> After kldloading i915
> the two kernel settings
> made cpu0 idle again
> but acpi interrupts counts remain high
>
> Luca
>
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