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Old 08-26-2003, 01:38 PM   #1
Registered: Jan 2003
Location: Columbus, OH USA
Distribution: Debian unstable
Posts: 63

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Strange Behavior

I know that this is not a whole lot of info on this problem but I really don't have a lot and I am posting in hopes that someone has had this problem and knows what is going on.

My computer has recently begun acting strange. It is a dual-boot machine, and it seems to only be occuring in Linux (which is Mandrake 9.1). The speakers are crackling (and I have tried different sets to no avail) and the display is acting erratic as well, sometimes in sync with the noises from the speakers. The system clock will lose the shadow on its text, sometimes black squares will appear in the middle of screen (rare), and text will sometimes not draw properly (like the text I'm typing now).

The system is well supported by Linux, I have used the kernel's CMPCI driver for my sound with no problem for many versions (currently 2.4.21). The display is also supported, it uses a SiS 630 graphics chip to drive it, and I have even got DRI to work (long before this started happening though).

I am not sure if I have a short in my board or if I have some odd software conflict. Help, anyone?
Old 08-26-2003, 02:44 PM   #2
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Registered: Aug 2003
Location: Portland, Oregon
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that is freaky, does this only happen in X (gui mode) or in terminal to, and as for speakers have you tried muting the card, and if so what did it do?
Old 08-26-2003, 02:49 PM   #3
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Move to Linux - Hardware

Old 08-28-2003, 12:16 PM   #4
Registered: Jan 2003
Location: Columbus, OH USA
Distribution: Debian unstable
Posts: 63

Original Poster
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I will have to try muting the card (it is an onboard chip really), that never crossed my mind. My system is set up to boot automatically into GUI mode and I don't think I've ever used terminal mode in Mandrake 9.1. I will try it though. Thanks for the suggestions!!
Old 08-31-2003, 08:15 AM   #5
Registered: Apr 2003
Location: Juneau, Alaska
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Have you tried moving your speakers a few inches away from your monitor?
Both these components emit enough signals to interfere with each other.
Old 08-31-2003, 03:42 PM   #6
Registered: Jan 2003
Location: Columbus, OH USA
Distribution: Debian unstable
Posts: 63

Original Poster
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the speakers are indeed very close to the monitor but the problem is that they don't make any unwanted noise in windows (it is a dual-boot machine). Also, I have wired my computer sound to an input on my stereo and the sounds can still be heard even when you switch off the computer speakers and switch on the stereo.


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