Check if HDMI still alive?

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I have a laptop (Aspire 3750G) and suddenly after it shut down because of overheat - I can't see my HDMI back.



xrandr -q returns me only LVDS-1, VGA-1, and VGA-1-2.



I'm using nouveau driver since Linux installed on this laptop (Ubuntu first and Arch Linux last >year) and never had HDMI issues before.



So my assumption is this is something wrong with the hardware and the question is - how can I check hardware HDMI status in Linux?




x11 xrandr hdmi




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  • OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
    – setevoy
    May 1 at 17:16














up vote
0
down vote

favorite












I have a laptop (Aspire 3750G) and suddenly after it shut down because of overheat - I can't see my HDMI back.



xrandr -q returns me only LVDS-1, VGA-1, and VGA-1-2.



I'm using nouveau driver since Linux installed on this laptop (Ubuntu first and Arch Linux last >year) and never had HDMI issues before.



So my assumption is this is something wrong with the hardware and the question is - how can I check hardware HDMI status in Linux?




x11 xrandr hdmi




share|improve this question



















  • OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
    – setevoy
    May 1 at 17:16












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have a laptop (Aspire 3750G) and suddenly after it shut down because of overheat - I can't see my HDMI back.



xrandr -q returns me only LVDS-1, VGA-1, and VGA-1-2.



I'm using nouveau driver since Linux installed on this laptop (Ubuntu first and Arch Linux last >year) and never had HDMI issues before.



So my assumption is this is something wrong with the hardware and the question is - how can I check hardware HDMI status in Linux?




x11 xrandr hdmi




share|improve this question











I have a laptop (Aspire 3750G) and suddenly after it shut down because of overheat - I can't see my HDMI back.



xrandr -q returns me only LVDS-1, VGA-1, and VGA-1-2.



I'm using nouveau driver since Linux installed on this laptop (Ubuntu first and Arch Linux last >year) and never had HDMI issues before.



So my assumption is this is something wrong with the hardware and the question is - how can I check hardware HDMI status in Linux?





x11 xrandr hdmi





share|improve this question










share|improve this question




share|improve this question









asked Apr 28 at 19:15









setevoy

4941822




4941822











  • OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
    – setevoy
    May 1 at 17:16
















  • OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
    – setevoy
    May 1 at 17:16















OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
– setevoy
May 1 at 17:16




OK, not sure what was the reason but after next attempt to upgrade and reboot - suddenly HMDI went back... I love you, Linux. What else I did - "turned off and on again" (c) LVDS-1 and VGA-1.
– setevoy
May 1 at 17:16










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xrandr checks hardware HDMI status, if that doesn't show an HDMI- then there is a problem with video subsystem. Perhaps,



  • the driver is corrupted, or misconfigured

  • the card itself is failed to initialize

  • there is a BIOS/UEFI option to enable dual-monitor or HDMI





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    up vote
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    down vote













    xrandr checks hardware HDMI status, if that doesn't show an HDMI- then there is a problem with video subsystem. Perhaps,



    • the driver is corrupted, or misconfigured

    • the card itself is failed to initialize

    • there is a BIOS/UEFI option to enable dual-monitor or HDMI





    share|improve this answer

























      up vote
      1
      down vote













      xrandr checks hardware HDMI status, if that doesn't show an HDMI- then there is a problem with video subsystem. Perhaps,



      • the driver is corrupted, or misconfigured

      • the card itself is failed to initialize

      • there is a BIOS/UEFI option to enable dual-monitor or HDMI





      share|improve this answer























        up vote
        1
        down vote










        up vote
        1
        down vote









        xrandr checks hardware HDMI status, if that doesn't show an HDMI- then there is a problem with video subsystem. Perhaps,



        • the driver is corrupted, or misconfigured

        • the card itself is failed to initialize

        • there is a BIOS/UEFI option to enable dual-monitor or HDMI





        share|improve this answer













        xrandr checks hardware HDMI status, if that doesn't show an HDMI- then there is a problem with video subsystem. Perhaps,



        • the driver is corrupted, or misconfigured

        • the card itself is failed to initialize

        • there is a BIOS/UEFI option to enable dual-monitor or HDMI






        share|improve this answer













        share|improve this answer



        share|improve this answer











        answered Apr 28 at 19:28









        Evan Carroll

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