I'm using two 21" CRT displays, one connected to my notebook's
dock's VGA, second to DVI using DVI-HDMI converter and HDMI-VGA
converter. Then only VGA-Sun cable is connected to monitor.
In my case, having such "adapter ladder" makes system forget about
monitor's default modes, obtained in Linux by VESA digital signals. To
fix the problem, I have a shell script which starts when my laptop is
docked or starts docked. This script consists of xrandr commands, like:
- Turn off notebook's internal display
- Turn VGA monitor on
- Insert modeline to DVI.
- Turn on DVI, right of VGA.
- Select resolution from inserted modeline.
Personally I couldn't fix the problem in any GUI solution, or without
modelines.
MCbx
Ken Heard <kenslists(a)teksavvy.com> napisał(a):
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I have a box with Debian Wheezy and TDE installed in it. The GPU has
three connectors, one DVI and two HDMI.
I have two monitors connected to it. The diagonal measurement of one
is 49 cm. It has a 1600x900 resolution and is connected to the box by
a DVI cable.
The other is a TV/monitor with a diagonal measurement of 124 cm (49
inches). It is connected to the box by HDMI. The box recognizes its
existence, but the display on it has the same resolution as the
smaller monitor.
It consequently uses only about 40-45% of the screen area, nor is it
centred on the screen. It starts more or less from the upper left
corner and leaves an L shaped unused black space on the bottom and
right sides. The left side does not correspond to the left side of
the screen; a strip on the left side of the display is seen on the
smaller monitor but not on the large one.
Is it possible to create a display resolution larger than 1600x900 for
the large monitor and properly centred on the screen, possibly using
the ‘Monitor and Display’ feature of the TDE Control Centre?
Regards, Ken
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