[PLUG-TALK] UHD FreeSync choices

[Tomas Kuchta]

Your 30 second pixelated experience is most likely VLC and not graphics
card artefact.

Try playing the same video with command line mplayer and report back.

Usage:
mplayer videoFile.mkv

f - full screen mode
arrows/PgUp/PgDwn - to move forward/back, holding shift with the keys
increases the move/jump

Hope it helps,
Tomas

On Thu, Jan 23, 2020, 17:21 John Jason Jordan <johnxj at gmx.com> wrote:

> Is anyone using an AMD video card with FreeSync and a UHD monitor?
>
> More detail:
>
> A little over a year ago I built myself a new desktop computer, which
> currently has Xubuntu 18.04. It has an Intel i7-7700 CPU, and no extra
> video card. It is currently running a 6+-year old 21" Asus 1980x1020
> monitor, which I would like to replace with a 27" or 28" UHD monitor
> (3840x2160).
>
> I am using just the Intel video. The literature on the motherboard says
> it will do 3840x2160, but at only 30Hz. Furthermore, it lacks newer
> features, most notably FreeSync, which is an AMD technology. Let me
> clarify a bit about FreeSync.
>
> A couple years ago AMD came up with an 'adaptive sync' technology,
> primarily aimed at gamers, but also useful for video enthusiasts. The
> benefit is smoothing out video and eliminating jerkiness and pauses.
> Consider that you are watching a movie with VLC, and you decide to jump
> ahead. When you do the screen will suddenly become pixelated for a
> while, sometimes for as much as 30 seconds. If your video card has
> adaptive sync this won't happen; the movie will just continue from the
> new spot with no interruption. I have this on my new laptop, and it is
> awesome.
>
> AMD calls their adaptive sync technology FreeSync and, naturally, you
> need AMD video to get it, and only AMD video from the past couple of
> years has it. There is an alternative, however, from nVidia, which they
> call G-Sync. But regardless of which you go with, the FreeSync or
> G-Sync has to be built into your monitor in order to work. And that's
> where there is a rub - nVidia wants monitor manufacturers to pay them a
> high licensing fee, where FreeSync is free. And the technologies are
> mutually exclusive; if you have a FreeSync monitor an nVidia card with
> G-Sync will do nothing, and vice-versa. And considering the cost issue,
> high end monitors usually come with FreeSync, but there are very few
> that have G-Sync.
>
> In other words, I want to buy a new UHD monitor with FreeSync, and that
> means I also need to buy an AMD Radeon video card that provides
> FreeSync. And that gives me a major shopping dilemma. I have picked out
> a couple dozen UHD monitors with FreeSync to choose from, and a similar
> number of Radeon cards, but what works with what? So far all I have
> been able to determine is that apparently AMD supports Linux for all
> their cards, and drivers are in the repositories. But it sure would be
> useful if I could find a real-world testimonial like 'my X UHD monitor
> works great on Linux with the Y Radeon card.'
>
> Comments and suggestions welcome!
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