Since dist-upgrade, Debian crashes after a few minutes of using terminal, but only when an external monitor is not being used

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Two months ago I ran a dist-upgrade on my thinkpad work laptop, upgrading from Debian 8 to Debian 9. Since then I have been experiencing issues which I do not know how to troubleshoot, which only occur when a second monitor is attached.



Since then, after a few minutes of using the terminal (gnome-terminal, mate-terminal, and x-emulator-terminal all have this problem) my laptop screen become a pure black, with occasional flickering pixels to the left hand side. After a few seconds the laptop turns off. It looks very much like hardware fault (bad screen cable, or something).



However if it was a hardware fault I do not understand why I can browse the internet and run other applications indefinitely without computer crashes, nor why having an external monitor would magic away the problem.



I have tried looking through my /var/log/syslog but I cannot see any messages which appear when the crash occurs, nor any error messages that only appear when a second monitor is not attached. I do often get the message:




Allocating size to GtkScrollbar 0x55a1328f6290 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?




I do not know if this related in anyway to this problem.



I cannot find anything on "the internet" with any issues even a little bit similar to this.
Frankly I do not know where to begin troubleshoot this issue.







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    up vote
    2
    down vote

    favorite












    Two months ago I ran a dist-upgrade on my thinkpad work laptop, upgrading from Debian 8 to Debian 9. Since then I have been experiencing issues which I do not know how to troubleshoot, which only occur when a second monitor is attached.



    Since then, after a few minutes of using the terminal (gnome-terminal, mate-terminal, and x-emulator-terminal all have this problem) my laptop screen become a pure black, with occasional flickering pixels to the left hand side. After a few seconds the laptop turns off. It looks very much like hardware fault (bad screen cable, or something).



    However if it was a hardware fault I do not understand why I can browse the internet and run other applications indefinitely without computer crashes, nor why having an external monitor would magic away the problem.



    I have tried looking through my /var/log/syslog but I cannot see any messages which appear when the crash occurs, nor any error messages that only appear when a second monitor is not attached. I do often get the message:




    Allocating size to GtkScrollbar 0x55a1328f6290 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?




    I do not know if this related in anyway to this problem.



    I cannot find anything on "the internet" with any issues even a little bit similar to this.
    Frankly I do not know where to begin troubleshoot this issue.







    share|improve this question





















      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      Two months ago I ran a dist-upgrade on my thinkpad work laptop, upgrading from Debian 8 to Debian 9. Since then I have been experiencing issues which I do not know how to troubleshoot, which only occur when a second monitor is attached.



      Since then, after a few minutes of using the terminal (gnome-terminal, mate-terminal, and x-emulator-terminal all have this problem) my laptop screen become a pure black, with occasional flickering pixels to the left hand side. After a few seconds the laptop turns off. It looks very much like hardware fault (bad screen cable, or something).



      However if it was a hardware fault I do not understand why I can browse the internet and run other applications indefinitely without computer crashes, nor why having an external monitor would magic away the problem.



      I have tried looking through my /var/log/syslog but I cannot see any messages which appear when the crash occurs, nor any error messages that only appear when a second monitor is not attached. I do often get the message:




      Allocating size to GtkScrollbar 0x55a1328f6290 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?




      I do not know if this related in anyway to this problem.



      I cannot find anything on "the internet" with any issues even a little bit similar to this.
      Frankly I do not know where to begin troubleshoot this issue.







      share|improve this question











      Two months ago I ran a dist-upgrade on my thinkpad work laptop, upgrading from Debian 8 to Debian 9. Since then I have been experiencing issues which I do not know how to troubleshoot, which only occur when a second monitor is attached.



      Since then, after a few minutes of using the terminal (gnome-terminal, mate-terminal, and x-emulator-terminal all have this problem) my laptop screen become a pure black, with occasional flickering pixels to the left hand side. After a few seconds the laptop turns off. It looks very much like hardware fault (bad screen cable, or something).



      However if it was a hardware fault I do not understand why I can browse the internet and run other applications indefinitely without computer crashes, nor why having an external monitor would magic away the problem.



      I have tried looking through my /var/log/syslog but I cannot see any messages which appear when the crash occurs, nor any error messages that only appear when a second monitor is not attached. I do often get the message:




      Allocating size to GtkScrollbar 0x55a1328f6290 without calling gtk_widget_get_preferred_width/height(). How does the code know the size to allocate?




      I do not know if this related in anyway to this problem.



      I cannot find anything on "the internet" with any issues even a little bit similar to this.
      Frankly I do not know where to begin troubleshoot this issue.









      share|improve this question










      share|improve this question




      share|improve this question









      asked May 2 at 16:25









      Kai Salmon

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