Try this. Check the "Models" link, towards the top of the page.
http://www.cs.utexas.edu/users/kharker/linux-laptop/
On 17-Sep-99 John Miskinis wrote:
> Hello,
>
> As some of you, I have recently installed debian 2.1 on my Thinkpad 560. I
> have tried MANY of the XF86Config files on the net, but I
> could not arrive at one that worked flicker-free on my 800x600
> dual scan screen. Light grays would have wavy lines, etc.
>
> SO, I have pieced together one that works rock solid, but I am
> not sure how to tell if the setting will damage my video card
> or display. The IBM 560 Technical Reference does not mention any
> frequency specs for the LCD, only external monitor usage.
>
> So, I started playing around. One "modeline" setting I tried
> was flicker free, but unless I used the "no_accel" option, it
> would leave a couple dots wrong on the screen. But when I used
> the "no_accel" option it would REALLY slow it down.
>
> The one I am using now, I put together after many trials and errors,
> using a mix of frequencies works GREAT, but I am a little scared that
> I might damage my screen.
>
> Is there a definative way to find out? This is what I am most worried
> about. I believe the "28.32" was changed from "40.0"...
>
> Modeline "800x600"28.32 800 848 1000 1056 600 605 607 633 +hsync +vsync
>
> Many thanks for any info. By the way Eterm is REALLY COOL!
>
> John
>
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