Czy mam "hardware MUX"?

[gongarek]

0

Dzień dobry,

Zamierzam nauczyć się przełączać karty graficzne w laptopie

inxi -GMSADsI

Kod:

System:    Host: marcin-IdeaPad-L340-15IRH-Gaming Kernel: 5.0.0-32-generic x86_64 bits: 64 Desktop: Cinnamon 4.4.5
           Distro: Linux Mint 19.3 Tricia
Machine:   Type: Laptop System: LENOVO product: 81LK v: IdeaPad L340-15IRH Gaming serial: <root required>
           Mobo: LENOVO model: LNVNB161216 v: NO DPK serial: <root required> UEFI: LENOVO v: BGCN29WW
           date: 02/10/2020
Graphics:  Device-1: Intel driver: i915 v: kernel
           Device-2: NVIDIA driver: nouveau v: kernel
           Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa resolution: 1920x1080~60Hz
           OpenGL: renderer: Mesa DRI Intel UHD Graphics 630 (Coffeelake 3x8 GT2) v: 4.5 Mesa 19.0.8
Audio:     Device-1: Intel Cannon Lake PCH cAVS driver: snd_hda_intel
           Device-2: NVIDIA GP107GL High Definition Audio driver: snd_hda_intel
           Sound Server: ALSA v: k5.0.0-32-generic
Drives:    Local Storage: total: 465.76 GiB used: 16.97 GiB (3.6%)
           ID-1: /dev/nvme0n1 vendor: Western Digital model: WDS500G2B0C-00PXH0 size: 465.76 GiB
Sensors:   System Temperatures: cpu: 46.0 C mobo: N/A gpu: nouveau temp: 41 C
           Fan Speeds (RPM): N/A
Info:      Processes: 281 Uptime: 51m Memory: 15.54 GiB used: 1.61 GiB (10.4%) Shell: bash inxi: 3.0.32

Czytając https://help.ubuntu.com/community/HybridGraphics zadaję sobie pytanie, czy mam hardware mux? I jak to sprawdzić?

Pozdrawiam

[dedito]

1

Raczej nie masz, gdyż to dotyczyło wczesnych wersji hybrydowych grafik.
Tak przynajmniej opisuje to wiki Arch https://wiki.archlinux.org/index.php/hyb...Switching)

First Generation Hybrid Model (Basic Switching)
Note: Unless your notebook is from the last decade, it’s most likely using dynamic switching.

The first generation of notebooks with hybrid graphics follow an approach that involves a two graphic card setup with a hardware multiplexer (MUX). It allows power save and low-end 3D rendering by using an Integrated Graphics Processor (IGP) or a major power consumption with 3D rendering performance using a Dedicated/Discrete Graphics Processor (DGP). This model makes the user choose (at boot time or at login time) between the two power/graphics profiles and is almost fixed throughout the user session. The switch is done in a workflow similar to the following:

Turn off the display
Turn on the DGP
Switch the multiplexer
Turn off the IGP
Turn the display on again

This switch is somewhat rough and adds some blinks and black screens in laptops that could do it "on the fly". Later approaches made the transition a little more user-friendly.