Marcelo Laia composed on 2020-04-07 12:53 (UTC-0300):
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT
> Integrated Graphics Controller [8086:0a16] (rev 0b)
> 03:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI]
> Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445 / 530/535 / 620/625
> Mobile] [10...
> inxi -GSxxza command output
>
> marcelo@marcelo:~$ inxi -Gxx
> Graphics: Device-1: Intel Haswell-ULT Integrated Graphics vendor: Dell
> driver: i915 v: kernel bus ID: 00:02.0
> chip ID: 8086:0a16
> Display: x11 server: X.Org 1.20.7 driver: i915 compositor:
> gnome-shell resolution: 1920x1080~60Hz, 1920x1080~60Hz
> OpenGL: renderer: Mesa DRI Intel Haswell Mobile v: 4.5 Mesa 19.3.3
> compat-v: 3.0 direct render: Yes
This is inxi output unlike any I have ever seen.
driver: i915 v: kernel
is normal and expected, a result of using the i915 kernel module.
X.Org 1.20.7 driver: i915 compositor
is unexpected. i915 is not an X graphics driver. Compositor is normally on the
next line. Normally one would expect that output to resemble this:
X.Org 1.20.7 driver: modesetting unloaded: fbdev,vesa alternate: intel
Of course, these are for systems with only one GPU. Your laptop has dual GPUs,
so
there should be a Device-2, which is missing from inxi output....
> marcelo@marcelo:~$ xrandr --listproviders
> Providers: number : 3
> Provider 0: id: 0x44 cap: 0xf, Source Output, Sink Output, Source Offload,
> Sink Offload crtcs: 3 outputs: 2 associated providers: 0 name:modesetting
> Provider 1: id: 0x10a cap: 0x2, Sink Output crtcs: 1 outputs: 1 associated
> providers: 0 name:modesetting
> Provider 2: id: 0xe8 cap: 0xd, Source Output, Source Offload, Sink Offload
> crtcs: 0 outputs: 0 associated providers: 0 name:AMD Radeon R7 M260 @
> pci:0000:03:00.0
....but not from xrandr.
> marcelo@marcelo:~$ DRI_PRIME=0 glxinfo | grep "OpenGL renderer"
> OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile
>
> marcelo@marcelo:~$ DRI_PRIME=1 glxinfo | grep "OpenGL renderer"
> OpenGL renderer string: AMD Radeon R7 M260 (ICELAND, DRM 3.35.0,
> 5.4.0-4-amd64, LLVM 9.0.1)
>
> marcelo@marcelo:~$ DRI_PRIME=2 glxinfo | grep "OpenGL renderer"
> OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile
Apparently prime is in use to manage GPU use. As I have no experience with
laptops
with dual graphics, and thus none with using prime, and neither with
DisplayLink,
there is probably no more assistance for me to attempt here.
--
Evolution as taught in public schools is religion, not science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
