Does RPi support resolution of 2560x1440?


6 posts
by ivangrid » Tue Oct 16, 2012 10:29 am
Dears, does anyone tested RPi on 2560x1440? Works?
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by dom » Tue Oct 16, 2012 10:47 am
It won't. It's not a standard DMT/CEA mode. We won't support anything not in this list:
http://elinux.org/RPi_config.txt
We also have a pixels/second limit which is ~1920x1200@60 which that monitor is likely to exceed.
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by ivangrid » Tue Oct 16, 2012 10:57 am
Thank you for fast reply.
But in the list there are:
These values are valid if hdmi_group=2 (DMT)
hdmi_mode=77 2560x1600 60Hz
hdmi_mode=78 2560x1600 75Hz
hdmi_mode=79 2560x1600 85Hz
hdmi_mode=80 2560x1600 120Hz reduced blanking

What does it mean? RPi support 2560x1600?
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by dom » Tue Oct 16, 2012 11:27 am
ivangrid wrote:Thank you for fast reply.
But in the list there are:
These values are valid if hdmi_group=2 (DMT)
hdmi_mode=77 2560x1600 60Hz
hdmi_mode=78 2560x1600 75Hz
hdmi_mode=79 2560x1600 85Hz
hdmi_mode=80 2560x1600 120Hz reduced blanking

What does it mean? RPi support 2560x1600?


No. That is the list of all the standard CEA/DMT modes. Additionally there is a pixel clock limit which means modes bigger than 1920x1200@60 are not supported.

[You could try overclocking the pixel clock with
hdmi_pixel_freq_limit=<freq>
int config.txt, where the default limit is 162000000, but that is untested and unsupported]
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by mrvn » Wed Jan 09, 2013 7:05 pm
We also have a pixels/second limit which is ~1920x1200@60 which that monitor is likely to exceed.


How approximate is that? Does 1920x1200@60 work or not?

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by dom » Wed Jan 09, 2013 10:31 pm
mrvn wrote:
We also have a pixels/second limit which is ~1920x1200@60 which that monitor is likely to exceed.

How approximate is that? Does 1920x1200@60 work or not?

Reduced blanking form of 1920x1200@60 does work.
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