[Bug 102586] System freeze with Kernels > 4.11.x (freeze on 4.12.x and 4.13.x)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Dec 11 11:47:14 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=102586

--- Comment #24 from Imre Deak <imre.deak at intel.com> ---
(In reply to baggins from comment #23)
> In the mean time I have upgraded to F27 with kernel 4.14.3-300.fc27.x86_64.
> 
> In the /usr/lib/firmware/i915 directory, I see the following:
> 
> -rw-r--r-- 1 root root   8616 nov 26 15:22 kbl_dmc_ver1_01.bin
> -rw-r--r-- 1 root root   8840 nov 26 15:22 kbl_dmc_ver1_04.bin
> lrwxrwxrwx 1 root root     19 nov 26 15:22 kbl_dmc_ver1.bin ->
> kbl_dmc_ver1_01.bin
> 
> So even though 1_04 is installed, kbl_dmc_ver1.bin still points to 1_01.
> Am I supposed to manually alter the link?

No, it's not needed, the symlink isn't used by newer kernels, the driver refers
to the exact version in the filename. But the kernel change [1] to upgrade from
KBL DMC version 1.01 to 1.04 is not backported yet to stable kernels, it'll be
done after some more testing.

[1] https://patchwork.freedesktop.org/patch/187414/

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