Arch Linux

Kelevra

Member

From: Italy

Registered: 2018-05-15

Posts: 1

The UI is really laggy beyond a certain resolution

Hi

First of all, my setup is:

CPU: Intel i5-4690k
GPU: AMD Vega 56
HDD installation of Archlinux
Kernel version: 4.9.9-rt6-1-rt
Xorg version: 1.19.6
Screen resolution: 1920x1080 in HDMI

My problem is that every window beyond a certain resolution becomes really laggy (i mean the scroll for example, the selection, wrinting and performing every action). To be more accurate, if the window is horizontally bigger than half of the screen size, so the problem occurs. No matters which vertical size. The fact is that if I keep the windows smaller than half of the display size there is no problem and everything is smooth, is not something linear (The more the windows is bigger the more is laggy). It's like a trigger. I followed the wiki about the amdgpu driver so I installed it with mesa, but anything changes. Could you please help me solve this? Thanks!

Last edited by Kelevra (2018-05-15 18:19:34)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,435

Re: The UI is really laggy beyond a certain resolution

Most of the relevant amdgpu  code is in the kernel (and most of the really relevant Vega stuff only since 4.15), update your kernel or at least try to verify that you can reproduce this on a stock kernel. That kernel version is ancient. Just updating mesa is not sufficient, that mostly only contains the GL libraries.

Last edited by V1del (2018-05-15 18:53:49)