Re: [Libreboot] DisplayPort to DVIl or HDMI converters?

[Ben Sturmfels]

Quick update - success! I'm now running two 1920x1200 external monitors,
one via DisplayPort -> HDMI, the other via VGA.

Damien put me on to `arandr`, which seems to be more powerful than the
Gnome "Display" tool.

Can't seem to activate the internal monitor in this configuration - get
an error "xrandr: cannot find crtc for output LVDS1". Not that I want
the internal monitor active anyway.

On 03/08/16 13:36, Damien Zammit wrote:
> Hi Ben,
> 
> I just tried mine with 2 external monitors, DP->DVI + VGA and internal
> LVDS still on, I can't get all three to power up, or even 2 without LVDS. :(
> I'm not sure if this is a restriction of the hardware or if it's the
> dongle, can someone please confirm if they have 2 monitors working with
> X200?
> 
> Thanks,
> Damien
> 
> On 03/08/16 12:31, Ben Sturmfels wrote:
>> FWIW, I purchased a passive DisplayPort to DVI converter:
>> http://www.volans.com.au/product/vl-dphm/
>>
>> Works well for one external monitor, but cuts out if I also plug in a
>> VGA cable for a second monitor. This is on my Lenovo X200 plugged into
>> the Ultrabase dock to get DisplayPort output.
>>
>> (I realise that this isn't directly related to Libreboot - it's just
>> that I know many of you are also using X200s.)
>>
>> Regards,
>> Ben
>>
>> On 27/07/16 14:12, Damien Zammit wrote:
>>> Hi Ben,
>>>
>>> I just bought a $5 DisplayPort -> DVI passive cable, at a local
>>> technology market, I just plugged it into my X200 + dock and it works a
>>> charm!  Haven't tested it with 2 external monitors yet (VGA + DP).
>>>
>>> Damien
>>>
>>> On 27/07/16 13:19, Ben Sturmfels wrote:
>>>> Hi Folks,
>>>>
>>>> Does anyone have experience with DisplayPort to DVI or HDMI converters.
>>>> I see there are a few of these kind of devices for sale, but I gather
>>>> there are different types, such as active or passive. Any success stories?
>>>>
>>>> Cheers,
>>>> Ben
>>>>
>>>
>>
>>
>

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