ACK: [PATCH v2 0/1][SRU][M] HDMI output with More than one child device for port B in VBT error

[Andrei Gherzan]

On 23/07/05 03:26PM, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/2025195
> 
> [Impact]
> The HDMI monitor doesn't work, no events while plug/unplug the cable.
> 
> [Fix]
> From the bug report[1], skip the return works around the issue, so I created
> the DMI quirk to list affected platforms.
> 
> Intel is submitting patches[2][3] to fix the issue, but it requires to
> backport huge drm structure changes, too. As there is no regression
> found with this workaround, it's safer to use the DMI quirk to handle
> this issue.
> 
> 1. https://gitlab.freedesktop.org/drm/intel/-/issues/7709
> 2. https://patchwork.freedesktop.org/series/117641/
> 3. https://patchwork.freedesktop.org/series/114200/
> 
> The real fix from Intel may not be available in v6.5, so also submit this
> to Mantic kernel to benefit the 6.5-OEM kernel as well.
> 
> [Test]
> Verified by me, FE, and ODM.
> 
> [Where problems could occur]
> I have no idea what might happen, so only make the workaround avaiable on
> the listed platforms. So far, no regressions have been observed with
> plug/unplug, switch modes, reboot, and suspend tests.
> 
> Chia-Lin Kao (AceLan) (1):
>   UBUNTU: SAUCE: drm/i915/quirks: Add multiple VBT quirk for HP ZBook
>     Power G10
> 
>  drivers/gpu/drm/i915/display/intel_bios.c    |  3 +-
>  drivers/gpu/drm/i915/display/intel_display.c |  2 ++
>  drivers/gpu/drm/i915/display/intel_quirks.c  | 38 ++++++++++++++++++++
>  drivers/gpu/drm/i915/display/intel_quirks.h  |  2 ++
>  4 files changed, 44 insertions(+), 1 deletion(-)
> 
> -- 
> 2.34.1

Acked-by: Andrei Gherzan <andrei.gherzan at canonical.com>

-- 
Andrei Gherzan
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