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From:   Alex Deucher <alexdeucher@gmail.com>
Date:   Mon, 31 Oct 2022 13:08:28 -0400
Message-ID: <CADnq5_O0BotfaaMGz1oPiQno=g10DBygB2F6gfOuWd13M0C2LA@mail.gmail.com>
Subject: Re: 6.1-rc: names of video outputs changed?
To:     Pavel Machek <pavel@ucw.cz>
Cc:     airlied@redhat.com, dri-devel@lists.freedesktop.org,
        daniel@ffwll.ch, kernel list <linux-kernel@vger.kernel.org>
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Did you change which xorg DDX you are using?  E.g., between
xf86-video-modesetting and a xf86-video-[i915/radeon/amdgpu/etc.]?
They may have different naming conventions.

Alex

On Mon, Oct 31, 2022 at 1:04 PM Pavel Machek <pavel@ucw.cz> wrote:
>
> Hi!
>
> I used to be able to do:
>
> pavel@duo:~$     xrandr --output HDMI1 --mode 1920x1080 --primary
> warning: output HDMI1 not found; ignoring
> pavel@duo:~$     xrandr --output VGA1 --mode 1280x1024 --below HDMI1
> warning: output VGA1 not found; ignoring
>
> ...but now I have to do:
>
> pavel@duo:~$     xrandr --output VGA-1 --mode 1280x1024 --below HDMI-1
> xrandr: cannot find crtc for output VGA-1
> pavel@duo:~$     xrandr --output LVDS-1 --off
> pavel@duo:~$     xrandr --output VGA-1 --mode 1280x1024 --below HDMI-1
>
> Notice the change from HDMI1 to HDMI-1. I believe that's new in 6.1 or
> so. Who did it and why? Hardware is thinkpad x220, and this breaks my
> scripts :-(.
>
> Best regards,
>                                                                 Pavel
> --
> People of Russia, stop Putin before his war on Ukraine escalates.