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evalr
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Posts: 2
Registered: ‎07-30-2019
Location: ES
Views: 826
Message 1 of 2

Linux drivers for Thinkpad T495 graphic

Hi!
I bought a Lenovo Thinkpad T495 recently. I installed Ubuntu 18 next to Windows 10.
When I connect a second HDMI monitor it is not detected. I have tried to install the drivers from official website but it doesn’t work for me.


I have installed Ubuntu 18.04 with kernel 4.18.0-25-generic.
The processor is AMD Ryzen 5 pro 3500u w/ radeon vega mobile gfx × 8
And the video: Advanced Micro Devices, Inc. [AMD/ATI] Picasso (rev d2)

 
lopezziur@lopezziur:~$ inxi -G
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Picasso
           Display Server: x11 (X.Org 1.20.4 ) drivers: fbdev,ati (unloaded: modesetting,vesa,radeon)
           Resolution: 1920x1080@77.00hz
           OpenGL: renderer: llvmpipe (LLVM 8.0, 128 bits) version: 3.3 Mesa 19.0.2


Also, when I run the xrandr command I get the following error:

lopezziur@lopezziur:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
   1920x1080     77.00*

 

Can anyone recommend a solution to this issue?


Regards,
Eva

evalr
Fanfold Paper
Posts: 2
Registered: ‎07-30-2019
Location: ES
Views: 765
Message 2 of 2

Re: Linux drivers for Thinkpad T495 graphic

Hi!

I have solved it following this post's tips.
I have update Kernel version from 4.18 to 5.0.0.

Regards, Eva

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