Display port

Display port

[Alexandre]

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Hello,

I have an HP probook 5320m shipped with an intel GPU.

lspci
00:02.0 VGA compatible controller: Intel Corporation Core Processor
Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
    Subsystem: Hewlett-Packard Company Device 149b
    Flags: bus master, fast devsel, latency 0, IRQ 33
    Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
    Memory at c0000000 (64-bit, prefetchable) [size=256M]
    I/O ports at 3030 [size=8]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Capabilities: [d0] Power Management version 2
    Capabilities: [a4] PCI Advanced Features
    Kernel driver in use: i915

This laptop offer display port connector.
I have installed Debian squeeze on it (gnome desktop) and can't have display
port to work. In the gnome configuration screens I can't find the external
display when clicking on "detect displays"!

Does the i915 driver should work for display port?
Do I have to manually configure xorg.conf to make it work? how?

Thanks for your help

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Re: Display port

[Thomas Bächler]

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Am 15.02.2011 12:40, schrieb Alexandre:
> Hello,
> 
> I have an HP probook 5320m shipped with an intel GPU.
> 
> lspci
> 00:02.0 VGA compatible controller: Intel Corporation Core Processor
> Integrated Graphics Controller (rev 02) (prog-if 00 [VGA controller])
>     Subsystem: Hewlett-Packard Company Device 149b
>     Flags: bus master, fast devsel, latency 0, IRQ 33
>     Memory at d0000000 (64-bit, non-prefetchable) [size=4M]
>     Memory at c0000000 (64-bit, prefetchable) [size=256M]
>     I/O ports at 3030 [size=8]
>     Expansion ROM at <unassigned> [disabled]
>     Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>     Capabilities: [d0] Power Management version 2
>     Capabilities: [a4] PCI Advanced Features
>     Kernel driver in use: i915
> 
> This laptop offer display port connector.
> I have installed Debian squeeze on it (gnome desktop) and can't have
> display port to work. In the gnome configuration screens I can't find
> the external display when clicking on "detect displays"!
> 
> Does the i915 driver should work for display port?
> Do I have to manually configure xorg.conf to make it work? how?
> 
> Thanks for your help

Try the xrandr command, it will show you what you have (or don't have):

$ xrandr
Screen 0: minimum 320 x 200, current 2646 x 1024, maximum 8192 x 8192
LVDS1 connected 1366x768+1280+0 (normal left inverted right x axis y
axis) 0mm x 0mm
   1366x768       60.2*+
   1024x768       85.0     75.0     70.1     60.0
   1024x768i      43.5
   832x624        74.6
   800x600        85.1     72.2     75.0     60.3     56.2
   640x480        85.0     72.8     75.0     59.9
   720x400        85.0
   640x400        85.1
   640x350        85.1
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI2 connected 1280x1024+0+0 (normal left inverted right x axis y axis)
376mm x 301mm
   1280x1024      60.0*+
   1024x768       60.0
   800x600        60.3
   640x480        60.0
   720x400        70.1
DP2 disconnected (normal left inverted right x axis y axis)

Here, you can see 'HDMI2' and 'DP2' - DP2 seems to be the Displayport
and HDMI2 the Displayport in HDMI mode. (No idea what HDMI1 and DP1 are
though).


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