On Freitag, 2. November 2007, Brice Goglin wrote: > Andreas Pakulat wrote: > > - the dpi setting seems to be set wrongly, I've got a 332x205 > > laptop display (mm) and a 365x275 mm CRT. And xorg sets 96dpi and > > xrandr tells me that the screen size is actually 888x220 mmm??? > > Right would be something like 130dpi > > There are some known problems like this one, I think it is being > worked on upstream.
Well, current git still shows this behaviour. I guess the problem is that the driver doesn't read the EDID information properly or some such. > > - I couldn't get a virtual desktop of 3080x1050 with a modeline of > > 1400x1050 for the CRT, X11 always created a 3360x1050 virtual > > desktop, i.e. double the size of the lvds > > Not sure about this, maybe the ATI driver insists on using such a > size. I hope note, its quite annoying to have this 1680x1050 resolution on a standard 4:3 CRT, the font is stretched quite a bit. Or does XRandR support non-rectangular desktops, i.e. using 1680x1200 on the CRT and 1680x1050 on the LVDS? > If the latest upstream git of the driver does this, it might be worth > sending the corresponding config and log on bugzilla.freedesktop.org. Yeah, latest git doesn't help here. I've filed an upstream bugreport (not sure if I should reference it via forwarded-upstream): https://bugs.freedesktop.org/show_bug.cgi?id=13067 > > - most importantly: I can't start either XFC4 or KDE3 session from > > that xterm or from kdm. As soon as they're up and running the 2nd > > head is switched off and when I set a mode on it again and then use > > > > xrandr --output VGA-0 --left-of LVDS > > > > to put it on the left side of the lvds, but that just makes the > > whole screen go blank :( Maybe this is a xfce/kde issue? > > If starting with KDE/XFC works fine on both heads, I would guess that > KDE/XFC does some incorrect RandR 1.2 calls at startup. It is hard to > be sure. Did you check in the corresponding KDE/XFC configuration > utilities? Not sure about xfce4, but the kde startup script actually stored the layout of my screens and reloaded that using xrandr during session startup. I'll file a bugreport about that with KDE. Not sure what to do about this report, I can now at least use the new Xorg with XRandR, though there's still the outstanding issues of desktop-size and the dpi-settings... Andreas -- You are scrupulously honest, frank, and straightforward. Therefore you have few friends.
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