I wanted to install a second monitor. Since I don't have an integrated GPU, I found an old ATI Radeon HD 4600 Series and installed it beside my GTX 1050ti.
At first, drivers didn't work so I switched from my nvidia proprietary drivers to xorg open source drivers (after I read that they came with AMD drivers by default). Now the second monitor works too, but everything in it is very slow (browser, filemanager, anything). When I move the apps back on main screen they work normally. How can I fix this?
Here's my inxi -G
Graphics: Card-1: Advanced Micro Devices [AMD/ATI] RV730 PRO [Radeon HD 4650] Card-2: NVIDIA GP107 [GeForce GTX 1050 Ti] Display Server: X.Org 1.18.4 drivers: ati,radeon (unloaded: fbdev,vesa) FAILED: nouveau Resolution: firstname.lastname@example.org, email@example.com GLX Renderer: NV137 GLX Version: 3.0 Mesa 17.2.8