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Bug#931507: [PATCHv2] hda: Fix 1-minute detection delay when i915 module is not available

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Takashi Iwai

Jul 27, 2019, 2:40:07 AM7/27/19
On Fri, 26 Jul 2019 23:47:02 +0200,
Samuel Thibault wrote:
> Distribution installation images such as Debian include different sets
> of modules which can be downloaded dynamically. Such images may notably
> include the hda sound modules but not the i915 DRM module, even if the
> latter was enabled at build time, as reported on
> In such a case hdac_i915 would be linked in and try to load the i915
> module, fail since it is not there, but still wait for a whole minute
> before giving up binding with it.
> This fixes such as case by only waiting for the binding if the module
> was properly loaded (or module support is disabled, in which case i915
> is already compiled-in anyway).
> Signed-off-by: Samuel Thibault <>

Applied with a slight coding style fix in my side. Also added Fixes
and Cc-to-stable tags.

At the next time, please check the patch before submission via


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