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Windows 7: ATI Radeon HD 5770 Wrong Resolution Every Time

22 Dec 2010   #1
Maxxwire

Windows 7 x64 Home Premium
 
 
ATI Radeon HD 5770 Wrong Resolution Every Time

Everytime I start my Win 7 x64 computer the Radeon HD 5770 graphics card gets the resolution of the desktop wrong on my 32" Sony Bravia using its VGA input. When I start CCC the correct 1366 X 768 resolution is selected, nevertheless I must select another resolution and then when the wrong resolution is offered I decline and CCC snaps the desktop into perfect 1366 X 768 indicating to me that it does know the correct resolution to default to.

Is there anything that can be done to get the Radeon HD 5770 to display the correct desktop resolution at startup?

~Maxx~
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Attached Images
 
My System SpecsSystem Spec
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23 Dec 2010   #2
bassfisher6522

Windows 7 Ultimate 64 bit
 
 

When making changes in CCC are you applying and saving changes? Are your using the CCC to extend the monitors? Next, I would ditch the vga connection and go to HDMI. With the vga connection, there are set limitations on the resolution choices. I think the connection hook up is the problem here. Try an HDMI cable and see if your issue doesn't disappear.
My System SpecsSystem Spec
23 Dec 2010   #3
Fluffy

Windows 7 Home Premium x64
 
 

Try un-installing the drivers completely and reinstalling. If not you can always "Force" the resolution through windows.
My System SpecsSystem Spec
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23 Dec 2010   #4
Maxxwire

Windows 7 x64 Home Premium
 
 

bassfisher6522- Thank you for your reply! Yes I am saving changes in CCC as you can see in the screenshot the 1366 X 768 resolution is highlighted and to reset the resolution I pick a different resolution and when I decline it CCC always goes to the correct default resolution. What puzzles me is why it does not enable the correct resolution in the first place?

When I got my new Win 7 computer I was looking forward to using HDMI with my 32" Sony Bravia and so I bought a new high quality Belkin Pure AV Silver Series HDMI cable even before I got the computer, but I was in for a big surprise!

When I connected my computer to my Bravia LCD monitor using the HDMI cable the image was so severely overscanned that I could barely even see the window controls in the upper right hand corner of the screen and no matter how I adjusted the Radeon HD 5570 graphics card to return to the 1366 X 768 screen size the Bravia displayed hard to read text and distortion artifacts across the entire display. What I later discovered was that HDMI has been mandated to output only 720 or 1080 lines of resolution and correcting the overscan resulted in distortions that appeared no matter what method I used to force the resolution to to fit the 768 line screen resolution of the Bravia.

This distortion of the adjusted screen resolution manifests itself not only in difficult to read text, but also in a matrix of lines which look like cracks in the surface of every picture. I went back to using a DVI to VGA converter and now have a perfect 768 lines of resolution without the overscanning or the very distracting distortions created by using the mandated 720 line resolution of HDMI.



~Maxx~
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My System SpecsSystem Spec
23 Dec 2010   #5
Maxxwire

Windows 7 x64 Home Premium
 
 

Quote   Quote: Originally Posted by Fluffy View Post
Try un-installing the drivers completely and reinstalling. If not you can always "Force" the resolution through windows.
Earlier this week Windows Update installed new drivers for my computer's Radeon HD 5570 graphics card and so I was hoping that this problem would be fixed because it got the screen resolution right when I rebooted the computer, but its gotten it wrong ever since. As I explained above I tried forcing the correct resolution in HDMI, but the text was hard to read and the screen graphics had distortions in them as a result.

~Maxx~
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My System SpecsSystem Spec
23 Dec 2010   #6
Sardonicus

Windows 7 Home Premium 64 bit
 
 

Did you create a profile? The CCC will load the saved profile upon bootup. It may not solve your HDMI problem, but for the time being, it should help in that you don't have to keep re-setting the resolution upon system boot-up.
My System SpecsSystem Spec
23 Dec 2010   #7
Devilz

Windows 8.1 - 64 Bit
 
 

read here, it looks like you got scaling issue with HDMI cable

Full Screen With Your HDMI Cable & ATI Catalyst Control Center
My System SpecsSystem Spec
23 Dec 2010   #8
Maxxwire

Windows 7 x64 Home Premium
 
 

Devilz- I used this ATI CCC compensation for the overscan in HDMI at 6% to bring the screen resolution down to 1366 X 768 and that is what was causing the screen distortion.

I am not so much concerned about using HDMI because the Win 7 desktop looks every bit as good on the 32" Bravia using VGA as the Mac Pro desktop does on the Apple Cinema 30 using DVI when viewing high resolution uncompressed 8-10 MB .jpeg photos.

What I am much more concerned about is why the Radeon HD 5770 can't get the right screen resolution when the computer starts when it obviously already knows the default resolution of the monitor?

~Maxx~
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Attached Images
 
My System SpecsSystem Spec
23 Dec 2010   #9
Maxxwire

Windows 7 x64 Home Premium
 
 

Quote   Quote: Originally Posted by p5bdkw View Post
Did you create a profile? The CCC will load the saved profile upon bootup. It may not solve your HDMI problem, but for the time being, it should help in that you don't have to keep re-setting the resolution upon system boot-up.
Is this the profile that you are referring to?

~Maxx~
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My System SpecsSystem Spec
23 Dec 2010   #10
Sardonicus

Windows 7 Home Premium 64 bit
 
 

Click Options in the right hand corner>
Profiles>Profiles Manager>

Select all Catalyst Control Center settings.
Enter a profile name in the top box and Save it.
Select Activate & Close.

The profile (settings) should load every time Windows boots.
My System SpecsSystem Spec
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