[Bug 15865] DisplaySize first considered but than overwritten

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=15865





--- Comment #3 from Oliver Maurhart <oliver.maurhart at gmx.net>  2008-09-12 13:28:50 PST ---
Thanks for the reply.

It's fine with me if it is the xserver not the driver, I don't care.

I googled over hell and found this bug report which exactly defines mine. I
didn't made the assignment to the xf86-video-ati maintainers ... if you know
better: please reassign!

But, look: back those days in ati-6.6.3 and xserver-1.3 things looked pretty
cool, though I can hardly remember ... but DPI has never been of any concern.

Then ati-6.8.0 was delivered which led to this incident (on xserver-1.3). Then
I used ati-6.9.0 together with xserver-1.3, xserver-1.4.2 and xserver-1.5. I
even tried the git-sources of the ati-driver some days ago.

No nothing. DPI is plain wrong. Even worse: it get set correctly in the first
place just to be overwritten quite shortly after. I've set DisplaySize in the
Monitor Section (used a ruler).

But, if I use fglrx ... it's fine! Together with xserver-1.3 and xserver-1.4.2
(remember vaguely fglrx complaining about xserver-1.5, when used ...). With
fgrlx, I get correct DPI!

To me, this looks like a driver issue, doesn't it?

Where does this second assignment to this "physical size" come from, even if
set it up (as root!!) in the xorg.conf? I currently have no clue where to look
for ...

Concerning the Desktop Environment: actually the physical size has been changed
to some wrong values reflected by xdpyinfo. The later I don't count to some
Desktop Environment. 

Funny thing is, that Gnome fully ignores the this thing (which in turn could be
a false-positive bug?) giving me correct DPI. Whereas KDE gets really freaked
out and confuessed: some apps using the correct DPI some not, making the
desktop a mess.

Are there any files (/var/log/Xorg.0.log, /etc/X11/xorg.conf, lspci, etc.)
which could provide some insights?

Oh, and BTW - it's a Gentoo machine.


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