LinuxQuestions.org - Crash Monitor/Display regularly?

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Crash Monitor/Display regularly?

Hi,

I have reinstalled Debian, and visibly
my Monitor turns off.

Similarly to the DPMS OFF.

I can still do SSH, and I typed:

vbetool dpms on
as indicated here, but the monitor does not turn ON again..

https://wiki.debian.org/accessibility

What would you suggest?

thanks in advance

edit: if I do over ssh (su): echo 3 > /proc/acpi/sleep
then the all pc is crashed !
cold reset

Code:



(2) systems where it is possible to call the video BIOS during S3

  resume. Unfortunately, it is not correct to call the video BIOS at

  that point, but it happens to work on some machines. Use

  acpi_sleep=s3_bios.



(3) systems that initialize video card into vga text mode and where

  the BIOS works well enough to be able to set video mode. Use

  acpi_sleep=s3_mode on these.



(4) on some systems s3_bios kicks video into text mode, and

  acpi_sleep=s3_bios,s3_mode is needed.



(5) radeon systems, where X can soft-boot your video card. You'll need

  a new enough X, and a plain text console (no vesafb or radeonfb). See

  http://www.doesi.gmxhome.de/linux/tm800s3/s3.html for more information.

  Alternatively, you should use vbetool (6) instead.



(6) other radeon systems, where vbetool is enough to bring system back

  to life. It needs text console to be working. Do vbetool vbestate

  save > /tmp/delme; echo 3 > /proc/acpi/sleep; vbetool post; vbetool

  vbestate restore < /tmp/delme; setfont <whatever>, and your video

  should work.

OK... temporally I enginneeered this very ugly script that is started at boot:

by vbetool.sh on

Code:

if [ "$1" = "--loopdpmsoff"    ] ; then 

  while [ 1 ] ; do

    sudo vbetool dpms off

    echo "DPMS OFF"

    echo sleeping_dpms_off

    sleep 5m 

    echo sleeping 

    sudo vbetool dpms off

  done

  exit

fi













if [ "$1" = "--loopdpmson"    ] ; then 



  while [ 1 ] ; do

    sudo vbetool dpms on

    echo "DPMS ON"

    echo sleeping_dpms_on

    sleep 5m 

    echo sleeping 

    sudo vbetool dpms on

  done

  exit

fi











if [ "$1" = "on"    ] ; then 

        cd

        screen -ls

        if [ "$DISPLAY" != ""    ] ; then 

            xterm  -e screen -D -S mydpms -R -d  bash ~/.myrescuescripts/vbetool.sh --loopdpmson

          else

            screen -D -S mydpms -R -d  bash ~/.myrescuescripts/vbetool.sh --loopdpmson

        fi





  exit

fi 









if [ "$1" = "off"    ] ; then 

        cd

        screen -ls

        if [ "$DISPLAY" != ""    ] ; then 

            xterm-e screen -D -S mydpms -R -d  bash ~/.myrescuescripts/vbetool.sh --loopdpmsoff

          else

            screen -D -S mydpms -R -d  bash ~/.myrescuescripts/vbetool.sh --loopdpmsoff

        fi





  exit

fi

let's test if it fixes the x11 bug or whatever it might be