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*nix Thread, Why does Java turn the screen off in Technical; Something very curios happens with my PC and Linux. It can run fine for hours on end but if run ...
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    Why does Java turn the screen off

    Something very curios happens with my PC and Linux. It can run fine for hours on end but if run a Java app it turns the screen off. In the end I have to turn the power off and cold boot. I remember somebody mentioning a similar problem with a duff BIOS and ACPI but why Java? It doesn't matter what distro I run it seems to have a problem with Java 1.5 and later.

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    Geoff's Avatar
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    Re: Why does Java turn the screen off

    Blame SUN?

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    Re: Why does Java turn the screen off

    Quote Originally Posted by Geoff
    Blame SUN?
    To be honest it's a machine specific problem. The same software runs fine on other boxes. I just wondered what the JRE did to cause trigger the fault.

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    Re: Why does Java turn the screen off

    @ITWombat: Have you tried the obvious - graphics card drivers, memory and hard disk diagnostics, etc.?

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    Re: Why does Java turn the screen off

    Quote Originally Posted by Ric_
    @ITWombat: Have you tried the obvious - graphics card drivers, memory and hard disk diagnostics, etc.?
    I don't think it's the memory because the machine POSTs OK and all other software works fine. It's not hard disk related because it happens with Live CD distros
    As graphic card drivers, the funny thing is it happens with the more update distros which should have more recent drivers.

    I'm not really not going to spend any on fixing the box. I just though there might be a workaround I could use when I need to run Java software. I tried switching off ACPI as a boot option but that didn't work,

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    Re: Why does Java turn the screen off

    I don't think it's the memory because the machine POSTs OK and all other software works fine.
    I've had all sorts of interesting errors that were traced back to bad ram. I seriously suggest you run memtest86 on the machine for awhile just to be sure.

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    Quote Originally Posted by Geoff View Post
    I've had all sorts of interesting errors that were traced back to bad ram. I seriously suggest you run memtest86 on the machine for awhile just to be sure.
    seconded, you would be supprised at the ammount of problems that are RAM related, even after a POST check. POST is not thourough enough at all. memtest86 checks each part of your RAM with multiple tests to make sure its all functioning correctly.

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