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yuvadm

Member

From: Tel Aviv-Jaffa, Israel

Registered: 2012-08-08

Posts: 102

Website

i915 drm:finish_csr_load error

When running the initial initramfs hooks, I get a kernel error

[drm:finish_csr_load [i915]] *ERROR* Unknown stepping info, firmware loading failed

This doesn't seem to affect anything operational on my system, but I'd like to remove it if possible as it might hint to some subtle bugs.

Any idea where this is coming from? System is a fully updated Skylake-generation Intel NUC.

yuvadm

Member

From: Tel Aviv-Jaffa, Israel

Registered: 2012-08-08

Posts: 102

Website

Re: i915 drm:finish_csr_load error

Seems to be several i915 bugs that are resolved only in 4.5.x kernel

niqo

Member

From: Paris

Registered: 2005-11-04

Posts: 29

Re: i915 drm:finish_csr_load error

just installed a fresh 4.5.0 kernel
I still have these errors on my new skylake NUC:
[drm:csr_load_work_fn [i915]] *ERROR* Unknown stepping info, firmware loading failed
[drm:csr_load_work_fn [i915]] *ERROR* Failed to load DMC firmware, disabling rpm

david_scheers

Member

Registered: 2016-03-20

Posts: 1

Re: i915 drm:finish_csr_load error

I have the same problem on my skylake nuc (fedora 23).
After passing the bootloader, I often get this message. It's trial and error... Sometimes it boots, sometimes I get this message.

Any solutions ?

belette

Member

Registered: 2014-11-17

Posts: 121

Re: i915 drm:finish_csr_load error

same error on my side with Skylake ...
any idea?

niqo

Member

From: Paris

Registered: 2005-11-04

Posts: 29

Re: i915 drm:finish_csr_load error

Seems to be related to:

https://bugs.freedesktop.org/show_bug.cgi?id=94102
and https://bugs.freedesktop.org/show_bug.cgi?id=94113

Anyone tried with the lastest kernel 4.6-rc2 ?

roffe

Member

From: 127.0.0.1

Registered: 2016-04-03

Posts: 11

Re: i915 drm:finish_csr_load error

I'm on 4.6-RC2. My Iris 520 is working good after applying patch found here

---

Fedora 23, Kernel 4.6-RC3 list of modifications
Dell XPS 13 9350 - 8 GB - 256GB NVMe - QHD - Skylake

niqo

Member

From: Paris

Registered: 2005-11-04

Posts: 29

Re: i915 drm:finish_csr_load error

It seems to be fixed in 4.6-rc5 (#94161 patch is included in rc5)

so "i915.enable_rc6=0" shouldn't be needed.

Last edited by niqo (2016-04-30 19:49:29)

niqo

Member

From: Paris

Registered: 2005-11-04

Posts: 29

Re: i915 drm:finish_csr_load error

I just installed 4.6-RC6 I confirm that these errors are gone and no more specific boot parameters needed.