How to set video output to 4K / UltraHD?
#1
How do I set the video output to 4K / UltraHD on Ubuntu?
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#2
I cannot give you a definitive answer at this time; I think someone reported that the drm driver switched to 4K after reading EDID for framebuffer or X, but not sure, and don't have any 4K devices to test.

When I know something definitive about 4K, I'll post here.
marcushh777    Cool

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#3
I have a 4K device, so let me know what to test. Thanks.
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#4
Pander, the drm driver is capable of 4K, so have you tried it... does it go into 4K mode ?
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

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#5
What are the command for checking if I have it install? How to install it? How to configure it? (I am pretty handy with these things but no idea which package and config files are involved now.)
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#6
(08-10-2016, 03:53 PM)Pander Wrote: What are the command for checking if I have it install? How to install it? How to configure it? (I am pretty handy with these things but no idea which package and config files are involved now.)

I think if you are using the kernel with the new integrated drm,  your frame buffer console will have a working cursor, and it will just go into 4K by itself !


Does your frame buffer console    (  ctrl-alt-F1 )  have a working cursor?   If so, the new drm is loaded and running.
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

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#7
Updated all today but no cursor on text terminal yet.


Code:
$ uname -a
Linux localhost.localdomain 3.10.102-3-pine64-longsleep #98 SMP PREEMPT Sat Aug 20 22:28:17 CEST 2016 aarch64 aarch64 aarch64 GNU/Linux
$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
   1920x1080      0.00*

From which version number can this be expected to work?
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#8
longsleep put up another kernel build yesterday; has a security fix, several additional kernel modules, and the integrated drm (I think so).
marcushh777    Cool

please join us for a chat @  irc.pine64.xyz:6667   or ssl  irc.pine64.xyz:6697

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#9
Thanks, will test again soon.
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#10
(08-21-2016, 07:29 AM)MarkHaysHarris777 Wrote: longsleep put up another kernel build yesterday; has a security fix, several additional kernel modules, and the integrated drm (I think so).

No, only the pine64drm Kernels have the sunxi-drm display driver.
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