ATI 4850 Dual Screen

Jul 21, 2009

I've a single ATI with dual monitor connections,

as Im using windows 7 and the latest Windows 7 x64 drivers from ati (after installing all drivers in the latest history)

I lose my second screen(screen remains in sleep mode) after the sleep mode initiated . It seems to be a programming error in the driver...

I can get the second screen up by the following sequence simple logging out --->>

switch User ... logging back in ( it takes some time after loggging in though....

Is there a way to detect what sequence(command) is sent to the screen and if I could add that sequence in the loggin...

I've the impression service from ati is bad they've simular reports dating from the beggining of Vista and never bothered to change anyting (by the way never had such problems in XP).

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Nov 10, 2009

I just installed Windows 7 Professional Version on my computer, it is a high-powered desktop with good specs. My graphics card is a 1GB HD Radeon 4850. I used to have Windows Vista 64bit and it displayed with a clear screen. However, after my upgrade, now the screen is all blurry and messed up. I downloaded ATI CCC and installed the new drivers and STILL, the computer screen is so blurry.

I was really looking forward to this upgrade to Windows 7, but I feel almost forced to revert to Vista because after looking at the screen for about 5 minutes, i get the worst headache ever and my eyes strain awfully.

I use 1920 x 1080 resolution and an HDMI cable, the recommended setting. If I go down to the lower resolution like 1720 x 1000 (not sure if thats exactly what it is) it is more clear, but I lose space and I feel it is still not as clear as it was on vista.

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I've updated to the latest graphic card drivers and installed hotfix etc., still no avail.

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I have seen other people with similar but not identical symptoms but no clear solution.

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I asked my friend to borrow his old 8600GT and my computer worked normally. He suggests that my PSU may not be supplying enough juice to the GPU. I thought it might have been the mobo. But my friend is more knowledable than I am. I ended up buying a new PSU. The PSU ended up not solving the problem. Then I buy the same exact card that gave me the problem and a new motherboard and installed the drivers.. that didnt do it either. With basically a brand new computer minus the RAM, I end up with the same results.

Original setup:
Intel Q6600
Sapphire ATI 4850 HD
Asus P5E
Antec 500W
G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800
Antec 500W Continuous SLI Certified CrossFire Ready 80 PLUS Certified
Windows 7 x64
Windows Vista x64

[code]....

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