Public bug reported:
System: Kubuntu 9.04
Relevant package versions:
- xorg: 1:7.4~5ubuntu18
- nvidia-glx-180: 180.44-0ubuntu1
The NVidia driver (or maybe Xorg, don't know which?) calculates an
incorrect DPI for the Samsung T220HD LCD monitor, leading to comically
large font sizes. Screenshot attached.
xdpyinfo shows the incorrect DPI resulting from incorrect monitor dimensions.
The correct dimensions are more like 470 x 350 mm:
screen #0:
dimensions: 1680x1050 pixels (160x90 millimeters)
resolution: 267x296 dots per inch
And Xorg.0.log showing that it was calculated:
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1680 x 1050
(--) NVIDIA(0): DPI set to (266, 296); computed from "UseEdidDpi" X config
(--) NVIDIA(0): option
I have worked around the issue by specifying the DPI in xorg.conf:
Option "UseEdidDpi" "false"
Option "DPI" "96 x 96"
** Affects: ubuntu
Importance: Undecided
Status: New
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Incorrectly-calculated DPI for Samsung T220HD
https://bugs.launchpad.net/bugs/370202
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