[ltp] Re: Physical screen size of the Thinkpad X31 and powersave mode

Rémi Lambert linux-thinkpad@linux-thinkpad.org
Fri, 3 Sep 2004 15:25:30 +0200


> Wait - on the projector it displays a small portion of the screen, and
> that scrolls around when your cursor is at the edge of the screen?

Yes, It's exactly that.

> That sounds a lot more like your system is set with a virtual resolution
> of 1024x768, but the external monitor connection is configured for
> 640x480.
>
> In that situation, X has a "feature" that is exactly what you describe,
> where it shows a subwindow that scrolls with the mouse.
>
> Check the X configuration files to see if the external monitor screen is
> set up oddly or whatever.

Ok, I see. 
Don't say "That's a bug !" but "That's a feature !" instead, once more... :-)
I'll check this soon.

> > At each startup of KDE 3.3, I get the following message :
> > -------------------- [ snip ] ------------------------
> > Your monitor didn't report it's X- and Y-size, this might cause display
> > problems like unreadable fonts. Do you want to configure your monitor
> > geometry manually ?
> > -------------------- [ snip ] ------------------------
> > (I had this message with KDE 3.2 too).
> >
> > I think this would maybe fix the LCD projector problem.
>
> No, not very likely, I fear. The DPI will have some influence over the
> display size of fonts but, other than that, will not change much.

Well, I understand.

> > I wrote to IBM technical Support to ask the exact X- and Y-sizes of the
> > screen but got no answer (they say that they can't get this information
> > !!!). I know that the screen is 12" but I want to know exactly its width
> > and its height, in millimeters.
>
> You /could/ get yourself a ruler and measure it, you know.  Low tech
> solutions are sometimes the best...

Yes, of course :-)  but I didn't know why SuSE wants those dimensions...
And I was wondering if the edges of the LCD screen were hidden by the black 
titanium composite edges of the top cover...


> Anyway, for that breed of LCD you want to specify that the screen is at
> 75DPI to get the sort of display you would expect.

Thanks, I'll try this...


Thank you very much !


RL