Runtime error for atibtmon.exe when disconnecting AC power cord

Anonymous
2012-11-25T13:02:58+00:00

Everytime I disconnect my AC power cord Windows 8 shows a Erro Dialog:

Runtime Error!

Program: C:\WINDOWS\system32\atibtmon.exe

This application has requested the Runtime to terminate it in an unusual way.

Please contact the application's support team for more information.

Anyone having the same problem?

Any hotfix for this?

Computer: DELL XPS Studio 16

Windows for home | Previous Windows versions | Devices and drivers

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Anonymous
2012-12-19T02:32:10+00:00

Vari bright option:

Power -> Power Play -> uncheck Enable Vari-Bright

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Anonymous
2012-12-03T03:29:25+00:00

Unchecking the "Vari Bright" option in the ATI Catalyst Control Center resolved the issue for me as well.  It seems this option dims the brightness of the display when unplugged; however, I believe Windows also does this (or, at least it does on my Dell XPS 16).  Perhaps two programs attempting to essentially do the same thing are the cause of the atibtmon issue?

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Anonymous
2012-12-01T22:56:43+00:00

I encountered this problem with my Pavilion DV6 after upgrading to W8 64bit as well and it's more irritating than it ought to be.  For what it's worth though, I opened  the AMD Vision Engine Control Center and disabled the "Vari Bright" option under the Power tab and that seemed to fix getting the error message every time my laptop is unplugged.  Doesn't fix the underlying problem and will will decrease my unplugged-time a bit, but I can live with that.

Thanks for the legwork though, Amiarage.  Looks like we;ll need to content ourselves with waiting for ATI to fix it.

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  1. Anonymous
    2015-08-06T04:32:04+00:00

    This problem still remains in Windows 10. So this page is useless.

    Where do I go to let Microsoft know about the issue so it gets fixed, rather than a community of users finding workarounds by disabling features?

    Additionally, None of the answers on this page describe WHAT Vari-Bright is OR how to locate the setting. There are some vague references using terms which dont make sense and arent described.

    FYI I eventually search my Windows 10 for Vari-Bright and found the setting, but nothing on this page suggested how I could find it.

    And again before your rebuttal I should remind you that the problem still exists in W10 so all of this noise achieved absolutely nothing to progress the platform. Almost comical if I wasn't so annoyed by it.

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  2. Anonymous
    2015-08-06T04:46:27+00:00

    Same here. I disabled the VariBright option, error doesn't appear anymore. Thanks!

    I don't see vari bright option

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