Public bug reported:
Binary package hint: xorg
I'm using a Dell Latitude E6400 (Intel 4500MHD) with a docking station. When
booting up while docked, the external monitor is enabled but using the wrong
resolution. When booting undocked and then docking the laptop, the correct
resolution for the external monitor cannot be set.
LVDS is the internal display, HDMI-1 is the dvi-output of the docking station.
Using Ubuntu 8.10 beta (updated it today) with xorg 1:7.4~5ubuntu1.
Expected behaviour:
- Boot the laptop while docked, lid is closed
- External monitor is enabled using its native resolution (1600x1200)
- Internal display is disabled
Actual behaviour:
- Boot the laptop while docked, lid is closed
- External monitor is enabled using the internal display's native resolution
(1440x900)
- Internal display is enabled
Expected behaviour:
- Boot the laptop while not docked, lid open
- Internal display is enabled
- Close lid, dock the laptop
- External monitor is enabled using its native resolution (1600x1200), internal
display is disabled
Actual behaviour:
- Boot the laptop while not docked, lid open
- Internal display is enabled
- Close lid, dock the laptop
- External monitor is not being enabled, its native resolution is not listed by
xrandr
So there are three problems:
- When docking/undocking the monitors are not automatically enabled/disabled
- The native resolution of the external monitor is not being listed when
docking after an undocked boot
- The wrong resolution is set for the external monitor when booting docked
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
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Incorrect resolution when docked on Dell Latitude E6400
https://bugs.launchpad.net/bugs/286001
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