https://bugs.kde.org/show_bug.cgi?id=492319
Zamundaaa <xaver.h...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |xaver.h...@gmail.com
--- Comment #6 from Zamundaaa <xaver.h...@gmail.com> ---
(In reply to Fabian Blaese from comment #1)
> I am observing similar problems with stutter.
>
> To me, it looks like this problem is caused solely by the high VRAM
> consumption, and (possibly) the resulting usage of GTT memory: With multiple
> monitors connected to my 7840U Laptop, I am observing the stutter regardless
> of kwins triple buffering settings. Connecting multiple external monitors
> causes VRAM usage to pretty much always get beyond the 512 MiB of VRAM the
> firmware of my Laptop has allocated, even with only a few open applications.
>
> I can work around this issue by enabling a gaming option in the UEFI of the
> laptop, so 4 GiB of VRAM are reserved. In this case, the stutter is not
> observable, even with triple buffering enabled.
The amount of memory you see as "VRAM" is not what the GPU can use, it's a very
small amount reserved for the GPU. Using more than it should never have a
noticeable performance impact - that "gaming" option is mostly a workaround for
buggy games that assume they always run on a dedicated GPU and don't launch
unless they have x amount of "VRAM".
Most likely the "gaming" option changes more than the amount of reserved
memory.
--
You are receiving this mail because:
You are watching all bug changes.
