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Message-ID: <65f841ba-5b70-4cbe-98e0-3d53e5b7944c@linaro.org>
Date:   Wed, 25 Oct 2023 15:45:31 +0300
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Subject: Re: [PATCH] soc: qcom: pmic_glink: fix connector type to be
 DisplayPort
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To:     Simon Ser <contact@emersion.fr>, Johan Hovold <johan@kernel.org>
Cc:     Bjorn Andersson <andersson@kernel.org>,
        Andy Gross <agross@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
References: <20231010225229.77027-1-dmitry.baryshkov@linaro.org>
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From:   Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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On 25/10/2023 15:29, Simon Ser wrote:
> On Wednesday, October 25th, 2023 at 14:22, Johan Hovold <johan@kernel.org> wrote:
> 
>> I was just going to post a patch fixing this after finally investigating
>> why the DisplayPort outputs on the X13s were annoyingly identified as
>> "Unknown20-1" and "Unknown20-2" instead of the expected "DP-1" and
>> "DP-2".
> 
> Note, ideally userspace should use drmModeGetConnectorTypeName() from
> libdrm to figure out the proper name for a connector type. That way we
> only need to update a single spot when adding a new connector type,
> instead of patching a whole bunch of programs.

X11 does its own thing. It further "renames" DP MST connectors. So on my 
laptop I end up with DP-1-1 in xrandr, but DP-3 in kernel.

-- 
With best wishes
Dmitry