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My X193W monitor on NVIDIA 8500GT was detected to be at 60Hz which is wrong.
This causes flickering and weird lines going down the screen.
Setting the rate to 75Hz fixed this in KDE's System Settings helps, but on
bootup it saves it wrongly, and it goes back to 60Hz until I click into the
Display settings dialog, when instantly it gets it right without altering the
settings.
Also, the NVIDIA driver displays 60Hz as 50Hz in KDE's settings (and
GNOME's), and 75Hz as 51Hz.
In nvidia-settings it displays properly (as 60Hz and 75Hz) but still
won't save the settings because it "cannot parse /etc/X11/xorg.conf" as
it doesn't exist anymore.
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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Acer X193W refresh rate not detected correctly
https://bugs.edge.launchpad.net/bugs/498173
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is subscribed to xorg in ubuntu.
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