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I didn’t try this yet, will provide update soon.

2008/11/19
1080p through VGA procedure
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OK folks, here is how I achieved 1920x1080p resolution through the VGA input of my Sharp LCD-TV.
First, a list of my hardware and software:
– Sharp LC-42D64U, serial no. B708, firmware update U0709111
– HP Pavilion a1250n computer with Athlon 64 X2 3800+ 2.0 GHz CPU
– Windows XP Media Center Edition with SP2
– ATI Radeon Xpress 200 Series integrated graphics card
– PowerStrip version 3.75 downloaded from www.entechtaiwan.com/ps.htm
Step-by-step procedure:
1. Click on the PowerStrip icon in the Task Bar
2. Select "Display Profiles" -> "Configure…"
3. Set display to native 1600×1200, 60 Hz using the resolution scroll bar if it is not already at that resolution.
4. Next, select "Advanced Timing Options"
5. Select "Custom resolutions"
6. From the scroll-down "User-defined and preset resolutions" menu, select: "1920x1080p 60Hz (EIA/CEA-861B)"
7. Click the "Add new resolution" button
8. This caution message appeared: "This parameter you have specified may be beyond the capabilities of your monitor or graphics card. Please recheck the resolution, horizontal and vertical refresh rates, and pixel clock to ensure they are within spec. Press OK to continue or Cancel to adjust the values." Click "OK"
9. This message appeared: "The display driver has accepted the new resolution. Do you want to try to switch to the new resolution at this time?" Click "OK"
10. This message appeared: "The display has been reconfigured. Do you want to keep these changes?" Click "Yes"
11. Click the "Close" button on the Custon Resolutions window.
12. You should now be back in the "Advanced timing options" window. At this point, I had to adjust the Synchronization Horizontal +/- and
the Vertical +/- polarities as well as the vertical geometry refresh rate. I scrolled the vertical refresh rate to 61.900 Hz to reduce slight
screen flicker (this may be different for your graphics card). 13. Next, click OK button on the "Advanced timing options" window.
14. At the "Display profiles" window under Profiles, click "Save as.." and save your profile under a unique name.
15. Finally, click "OK" to close the "Display profiles" window.
Voila! 1080p and dot-by-dot view mode. Please let us know if this procedure works for your particular hardware. Also note that if you get to step 10 and the screen resolution is not 1920×1080, go back to step 1 and try again. It took me two tries before the 1080p resolution worked. Good luck to all.
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