Intermittent black lines on either monitor when active

April 24, 2014 at 06:18:42
Specs: Windows 7 Ultimate 64-bit, Intel Core i3 @ 3.10GHz | 8GB DDR3 1333MHz
Greetings,

Some time ago, I began to notice that random black lines would flash on my main monitor during times that the monitor was displaying anything that moved a lot (Usually videos or games). I assumed it was just the monitor beginning to fail, as it is a rather cheap VGA monitor going through a VGA-DVI adapter to my ATI Radeon HD 5770 Vapor-X. However, after some time, the black lines and graphical stuttering began to display on my second monitor as well, albeit in a more minor case that the main monitor.

I can only assume that this is indicating some sort of damage to my graphics card, but could anybody confirm that? I'll try plugging the same two monitors into another computer tonight to test if it is indeed the monitors, however, I find it extremely unlikely that both monitors would begin to fail around the same time- especially when my second monitor is considerably newer than my main monitor.

My system specifications are in my signature, but for reference, my main monitor is running at 1600x900 through a VGA-DVI adapter, and my second monitor is native DVI running at 1280x1024.

I can get the exact model numbers of the monitors if needed- I just didn't feel that it was necessary given the situation. If you need any additional information, feel free to ask.

Comguy

MSI B75MA-P45 Motherboard
Intel Core i3-2100 3.10GHz
8GB DDR3 1333MHz RAM
SAPPHIRE ATI Radeon 5770 Vapor-X
AMD HD Audio
2TB Hitachi HDD (Windows 7 Ultimate 64-bit)
LG DVD-RW SATA

message edited by Comguy


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#1
April 24, 2014 at 06:58:48
If the monitors display OK on another working system.. then likely you have a problem with the vga card/adapter in your desktop system...

When you check the monitors elsewhere.. presumably this will be with a dvi o/p system too...

Can you per chance test the o/p from the two other ports to see if they are also doing the same black lines/flashing etc.?

I note from looking on the Sapphire website that the card has two separate dvi o/p. Not unknown for one o/p to start to fail and then the other follow suit.


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#2
April 24, 2014 at 08:24:24
Check the refresh rate and color depth for the graphics chip. Post back with that information.

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#3
April 24, 2014 at 15:55:19
@OtheHill

The color depth on the graphics chip is set to High (32-bit), while the refresh rate is set to 60 Hz. They are the set to the same values for both displays.

@trvlr

I'll test both monitors on my old computer tonight and report back my results.

MSI B75MA-P45 Motherboard
Intel Core i3-2100 3.10GHz
8GB DDR3 1333MHz RAM
SAPPHIRE ATI Radeon 5770 Vapor-X
AMD HD Audio
2TB Hitachi HDD (Windows 7 Ultimate 64-bit)
LG DVD-RW SATA

message edited by Comguy


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#4
April 24, 2014 at 21:32:07
@trvlr

I just tested both monitors on an old system of mine (ATI Radeon x1650 AGP, for reference) and it played videos perfectly fine on both monitors without any black lines or stuttering.

Additionally, disabling one monitor and displaying on only one monitor at a time seems to fix the issue. Could this indicate any specific issue with my graphics card? It seems that the black lines and stuttering seem to occur only when my graphics card is displaying to multiple monitors.

MSI B75MA-P45 Motherboard
Intel Core i3-2100 3.10GHz
8GB DDR3 1333MHz RAM
SAPPHIRE ATI Radeon 5770 Vapor-X
AMD HD Audio
2TB Hitachi HDD (Windows 7 Ultimate 64-bit)
LG DVD-RW SATA

message edited by Comguy


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#5
April 25, 2014 at 23:20:57
I figured out what the issue was. Rather than a hardware failure, my issue seemed to have arisen due to an unstable clock set in the AMD Catalyst Control Center. Disabling OverDrive and my overclocking entirely removed all the issues I was having.

MSI B75MA-P45 Motherboard
Intel Core i3-2100 3.10GHz
8GB DDR3 1333MHz RAM
SAPPHIRE ATI Radeon 5770 Vapor-X
AMD HD Audio
2TB Hitachi HDD (Windows 7 Ultimate 64-bit)
LG DVD-RW SATA


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#6
April 26, 2014 at 01:03:21
Mmm... More useful info for others to know...

Thank you for posting back.


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