I booted the D600 from an Intrepid alpha 4 Live CD.
"grep DisplaySize /etc/X11/xorg.conf" outputs nothing.
"xdpyinfo | egrep 'dimens|resolu'" prints
dimensions: 1400x1050 pixels (370x277 millimeters)
resolution: 96x96 dots per inch
so the resolution still is not autodetected.
I edited /etc/X11/xorg.conf and added
DisplaySize 285 215
to the Monitors section, and restarted X via Control-Alt-Backspace. Now my
results are
[EMAIL PROTECTED]:~$ grep DisplaySize /etc/X11/xorg.conf
DisplaySize 285 215
[EMAIL PROTECTED]:~$ xdpyinfo | egrep 'dimens|resolu'
dimensions: 1400x1050 pixels (370x277 millimeters)
resolution: 96x96 dots per inch
After the reboot, /var/log/Xorg.log.0 contains
(II) RADEON(0): Output LVDS using initial mode 1400x1050
after xf86InitialConfiguration
(**) RADEON(0): Display dimensions: (285, 215) mm
(**) RADEON(0): DPI set to (124, 141)
So, the driver is still miscalculating the y-axis DPI incorrectly, and still
ignoring the numbers that it calculates.
** Attachment added: "xorg.conf, with DisplaySize added, and Xorg logs with and
without DisplaySize"
http://launchpadlibrarian.net/17037930/IIa4.tgz
--
ati radeon driver does not autodetect displaysize on Latitude D600, therefore
uses wrong resolution
https://bugs.launchpad.net/bugs/80940
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