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
    2015-09-13T06:27:18+00:00

    Vari bright option:

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

    I'm also on an HP Pavilion dv6 like one of the other users but I'm running Windows 7 Professional.

    I did a little experimenting and determined that you can either disable Vari-Bright OR switch the PowerPlay option for Battery from Maximum Battery Life to Maximum Performance. As has been mentioned before though, this probably still creates a conflict between the Catalyst Control Center and the native Windows Power settings.

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  2. Anonymous
    2015-09-02T11:18:10+00:00

    If you don't have the "Vari Bright" option, do this:

    Control Panel > Power Options > Change Plan Settings > Change Advanced Power Settings

    Then...

    ATI Graphics Power Settings > ATI Power Play Settings > On Battery: Maximize Performance

    This does the same thing as disabling Vari Bright and the error message is eliminated. It worked on my older Acer 5251 running Windows 10.

    Both this and the move atibtmon file worked. I can't figure out why there is no program icon for Catalyst or why it is not running on this laptop (maybe a Windows 10 compatibility thing) but both of those tricks worked..... using the maximum power though so as to not possibly cause future update issues for the ATI card in this person's laptop

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