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User profile for user: hotwheels22
hotwheels22 Author
User level: Level 1
74 points

flickering samsung DVI compatible monitor (Lion/10.7.5)

does anyone have any idea why my just bought used Samsung 22" DVI compatible monitor FLICKERS when hooked up via DVI cable to my mac pro 1,1


i had to buy a DVI compatible monitor because my "mini Display port to DVI converter" from BELKIN i thought was broken but now the new one from Kanak is not working either and i figured to throw in the towel and not try to solve this riddle (since the mac store hooked up my computer to DVI with no problems) by just buying a used DVI compatible monitor.


now the thing has started flickering after using it for a day.


is this a global problem with the mac pro 1,1? with Lion? with this particular DVI monitor? with DVI?


anyone know?


p.s. i tried researching this on the net but not finding good answers.

Mac Pro, Mac OS X (10.7.5), Boot Camp of Windows 7 + Windows XP

Posted on May 10, 2015 2:19 PM

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User profile for user: CarlAVII
CarlAVII
User level: Community Specialist

Posted on May 12, 2015 12:44 PM

Hey hotwheels 22,



The article linked below details a number of troubleshooting steps that can help resolve display flickering issues with your Mac Pro.


Apple computers: Troubleshooting issues with video on internal or external displays
https://support.apple.com/en-us/HT201177



Sincerely,

Allen

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User profile for user: hotwheels22
hotwheels22 Author
User level: Level 1
74 points

May 12, 2015 1:19 PM in response to CarlAVII

hi allen,


can i please ask you this?


i have two installations of boot camp on this mac pro and as i understand it these are native installations of windows software.


this may be a more technical question than i was thinking to ask but do you know if the flickering happens on the windows installations (as well as in the mac installation) whether this is possibly a hardware issue?


i mean obviously if it is a driver issue i have to install the driver on all three OS's (2 win and 1 OSX).


at the same time i had this really nasty issue with my CInema Display that had a Mini Display Port that used to work with this computer and at some point the display went black and stopped working so i got a new converter (to get to DVI on the Mac Pro) but the NEW one didn't work anyway - which is how i ended up with this old DVI monitor.


i don't know but the more i deal with this machine that i love the more i am thinking i should put it to rest.


THANKS

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User profile for user: CarlAVII
CarlAVII
User level: Community Specialist

May 13, 2015 10:43 AM in response to hotwheels22

hotwheels 22,



If the issue is happening in multiple operating systems, it's likely that the issue is a with the graphics-card in your Mac Pro. The article linked below provides information that can help should you choose to replace the video card in your Mac.


About graphics-card compatibility between Mac Pro models
https://support.apple.com/en-us/HT201805



Sincerely,

Allen

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flickering samsung DVI compatible monitor (Lion/10.7.5)

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