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Old 02-20-2003, 09:07 AM   #1
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Question dual boot, h center issue

I run Windows XP and Slackware 8.1 on my machine and everything works out fairly well except I need to adjust the "Horizontal Center" property of my monitor every time I switch between the OSs.

It seems like when I boot into Windows, the entire viewable area on my monitor is shifted to the left so the Start bar is clipped. When I adjust and go back into Slack, I need to re-adjust because I experience the same clipping at the horizontal edges in KDE.

I know this isn't necessarily a Slackware problem because I had the same problem with other OSs including Mandrake and RedHat, but I figured you Slack types are probably the most knowledgable out there

Anyways, I basically have no idea what the problem is and have found no luck finding a solution on the web or elsewhere because it's just such an obscure issue. I suspect it to be related to Xfree or my Windows graphics drivers for that matter.

Has anyone had this problem? Does anyone know how to rectify it? Thanks for any help!
Old 02-22-2003, 02:51 AM   #2
Registered: Jun 2002
Location: South Africa
Distribution: Customised Slackware64-14.1 with multilib
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It's possible that you don't have the 100% correct horizontal and vertical refresh rates for your monitor. Get the specs for these from your monitor's manual or google for it (the information may also be easily accessible in Winblows). Check these values against those in your XF86Config.
If that does not work out you can use xvidtune to generate a tweaked modeline for each resolution that you use in X. Only use xvidtune as a last desperate measure because I have found that if I supply the correct refresh rates, the viewable area is usually centered.
Old 02-22-2003, 01:10 PM   #3
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Yep, some quick googling yielded the correct H and V refresh rates, I edited my XF86Config accordingly, and now everything works beautifully. Thanks!


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