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Thread: Monitor not detected after boot, sees no signal, not showing in xrandr output

  1. #11
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    Default Re: Monitor not detected after boot, sees no signal, not showing in xrandr output

    Quote Originally Posted by MirceaKitsune View Post
    Aha... so it uses a different driver within amdgpu? I thought amdgpu was the driver itself. Any disadvantage to disabling DC while this is necessary? In any case it seems this is a Display Core specific issue then.
    Hi
    Well you haven't posted the lspci output, but suspect your card is GCN 1.0 which is on it's way out.... https://en.wikipedia.org/wiki/Graphics_Core_Next and https://lists.freedesktop.org/archiv...er/043586.html
    Last edited by malcolmlewis; 27-Mar-2020 at 18:38.
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  2. #12
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    Default Re: Monitor not detected after boot, sees no signal, not showing in xrandr output

    Not sure if the Kernel 5.6 update or changing cable type from HDMI to DP fixed it, but amdgpu now recognizes the monitor correctly without needing the amdgpu.dc=0 hack any longer. So this seems to be fully resolved now whatever it was.
    openSUSE Tumbleweed x64, KDE Framework 5

  3. #13
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    Default Re: Monitor not detected after boot, sees no signal, not showing in xrandr output

    Quote Originally Posted by MirceaKitsune View Post
    Not sure if the Kernel 5.6 update or changing cable type from HDMI to DP fixed it, but amdgpu now recognizes the monitor correctly without needing the amdgpu.dc=0 hack any longer. So this seems to be fully resolved now whatever it was.
    That's good to know.
    openSUSE Leap 15.2; KDE Plasma 5

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