Ubuntu
displayconfig-gtk package

Missing RandR 1.2 support (no dualhead on ati and intel cards)

Bug #156062 reported by Aaron Whitehouse on 2007-10-23

This bug report is a duplicate of: Bug #144641: GUI screen config tool should generate an randr 1.2 configuration where possible. Edit Remove

2

Affects		Status	Importance	Assigned to	Milestone
	displayconfig-gtk (Ubuntu)	New	Undecided	Unassigned

Bug Description

Binary package hint: displayconfig-gtk

I have a Dell Inspiron 510m with an Intel 855GM graphics chip (using -Intel driver).

When I plug in an external monitor, it mirrors at different resolution, as it should (my laptop is 1400x1050 and the screen only supports 1280x1024). What seems unusual, however, is that Displayconfig says that the second monitor is disabled. It also will not let me configure the secondary monitor options (extend to left etc.).

Let me know what you need.

Revision history for this message

Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#1

Screenshot-Screen and Graphics Preferences.png Edit (36.7 KiB, image/png)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#2

Screenshot-Screen and Graphics Preferences-1.png Edit (36.4 KiB, image/png)

Changing the resolution has no effect.

Revision history for this message

Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#3

xorg.conf Edit (7.0 KiB, text/plain)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#4

Xorg.0.log Edit (120.1 KiB, application/octet-stream)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#5

ddcprobe.txt Edit (1.2 KiB, text/plain)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#6

lspci.txt Edit (9.5 KiB, text/plain)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#7

sudo_lspci.txt Edit (10.7 KiB, text/plain)

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Aaron Whitehouse (aaron-whitehouse) wrote on 2007-10-23:

#8

xrandr Edit (1.1 KiB, text/plain)

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Sebastian Heinlein (glatzor) wrote on 2007-10-23:

#9

The second screen cannot be autodetected currently, furthermore displayconfig-gtk does not support dual head with the latest intel and ati driver anymore, since boths drivers no longer support zapohad (use xrandr 1.2 instead).

Alternatively you can use the command line tool xrandr, the frontend grandr or take a look at http://www.intellinuxgraphics.org/dualhead.html

Revision history for this message

Aaron Whitehouse (aaron-whitehouse) wrote on 2007-12-25:

#10

In Hardy Alpha 2, I can no longer press the hotkey and have an attached monitor work. Is that due to the lack of XRandR support?

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