On 1 July 2014 09:50, Adam Funk <a24...@ducksburg.com> wrote: > On 2014-06-30, Colin Law wrote: > > > On 30 June 2014 21:07, Gordon Burgess-Parker <gor...@gbpcomputing.co.uk> > wrote: > >> Is there any way of permanently removing the "unknown display"? I've > turned > >> it off but it still is sitting there although not now affecting > anything... > > > > There is not normally an 'unknown display'. Have you got two graphics > > cards? Or a card with two outputs? > > Oh, is *that* why I have an unknown display too? I've been wondering; > 'lshw -c video' does list 2 '*-display' items. >
Interesting. I have a Lenovo X1 with a DisplayPort and HDMI ports and it only shows one controller when I type 'lshw -c video' even when I have an external display plugged into the HDMI port. In the display settings, it only shows me what displays are actually connected. So when I have nothing connected, it only shows "Built-in display" while it shows both when I have the external screen connected. Alternatively, could it be because the Lenovo U410 ultrabook has discrete NVIDIA graphics? Which may mean that it's got 2 display controllers: the one onboard the CPU + the NVIDIA one. Bruno
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