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+---- Thread: How to set video output to 4K / UltraHD? (/showthread.php?tid=1983)
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How to set video output to 4K / UltraHD? - Pander - 08-10-2016
How do I set the video output to 4K / UltraHD on Ubuntu?
RE: How to set video output to 4K / UltraHD? - MarkHaysHarris777 - 08-10-2016
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.
RE: How to set video output to 4K / UltraHD? - Pander - 08-10-2016
I have a 4K device, so let me know what to test. Thanks.
RE: How to set video output to 4K / UltraHD? - MarkHaysHarris777 - 08-10-2016
Pander, the drm driver is capable of 4K, so have you tried it... does it go into 4K mode ?
RE: How to set video output to 4K / UltraHD? - Pander - 08-10-2016
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.)
RE: How to set video output to 4K / UltraHD? - MarkHaysHarris777 - 08-10-2016
(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.
RE: How to set video output to 4K / UltraHD? - Pander - 08-21-2016
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?
RE: How to set video output to 4K / UltraHD? - MarkHaysHarris777 - 08-21-2016
longsleep put up another kernel build yesterday; has a security fix, several additional kernel modules, and the integrated drm (I think so).
RE: How to set video output to 4K / UltraHD? - Pander - 08-21-2016
Thanks, will test again soon.
RE: How to set video output to 4K / UltraHD? - longsleep - 08-21-2016
(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.