Bug#564174: xserver-xorg-video-intel: xrandr shows outputs that do not exist on Lenovo X200 (GM45)
On Fri, Jan 08, 2010 at 09:21:37AM +0100, Brice Goglin wrote:
> Josh Triplett wrote:
> > Package: xserver-xorg-video-intel
> > Version: 2:2.9.1-2
> > Severity: normal
> >
> > On my laptop, a Lenovo X200 with GM45 chipset, xrandr shows many outputs
> > that do not exist; more if using KMS.
> >
> > Output from xrandr without KMS:
> >
> > Screen 0: minimum 320 x 200, current 1280 x 800, maximum 4096 x 4096
> > VGA disconnected (normal left inverted right x axis y axis)
> > LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
> > 1280x800 60.0*+ 50.0
> > 1024x768 85.0 75.0 70.1 60.0
> > 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
> > HDMI-1 disconnected (normal left inverted right x axis y axis)
> > HDMI-2 disconnected (normal left inverted right x axis y axis)
> >
> > Note that this laptop does not have HDMI outputs, either on the laptop or on
> > its associated docking station.
> >
> > Output from xrandr with KMS:
> >
> > Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192
> > VGA1 disconnected (normal left inverted right x axis y axis)
> > LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
> > 1280x800 60.0*+ 50.0
> > 1024x768 85.0 75.0 70.1 60.0
> > 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
> > HDMI1 disconnected (normal left inverted right x axis y axis)
> > DP1 disconnected (normal left inverted right x axis y axis)
> > HDMI2 disconnected (normal left inverted right x axis y axis)
> > DP2 disconnected (normal left inverted right x axis y axis)
> > DP3 disconnected (normal left inverted right x axis y axis)
> >
> > In addition to the non-existent HDMI outputs, this shows two non-existent
> > DisplayPort outputs. This laptop has only one such output, on its docking
> > station, which I do not have.
> >
>
> Sometimes the outputs exist internally but they have no external plug. I
> don't know if the driver could find that out. At least it's not saying
> that they are connected :)
The Intel driver has various quirks for particular systems on which
certain outputs exist internally but not externally, specifically to
address this type of problem. I just filed this bug in the hopes of
having another quirk added.
- Josh Triplett
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