Public bug reported:

Hi,

I did an upgrade via terminal yesterday, everything seemed to work fine
but then I noticed very heavy CPU usage by gnome-shell. The problem is
that the UHD card is not fully recognized, so it uses instead llvmpipe,
so no native 3D acceleration :-( This was working great in 17.10

Some outputs which might be useful:
______________________________________
sudo lspci -nnk | grep -i vga 

-A3 00:02.0 VGA compatible controller [0300]: Intel Corporation UHD
Graphics 620 [8086:5917] (rev 07) Subsystem: Dell UHD Graphics 620
[1028:07e6] Kernel driver in use: i915 Kernel modules: i915

glxinfo | grep llv

Device: llvmpipe (LLVM 6.0, 256 bits) (0xffffffff) OpenGL renderer string: 
llvmpipe (LLVM 6.0, 256 bits)
____________________________________

Pls let me know if providing more info would help. I am not sure if the
driver is missing or if XORG is broken, please help. I am using XORG at
the moment, Wayland freezes befpre desktop environment shows up (it was
working in 17.10).

Thanks!

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- XPS 9370 Upgrade from 17.10 to 18.04 lost native 3D hardware acceleration for 
intel UHD 620, laptop is XPS 9370
+ Upgrade from 17.10 to 18.04 lost native 3D hardware acceleration for intel 
UHD 620, laptop is XPS 9370

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https://bugs.launchpad.net/bugs/1768497

Title:
  Upgrade from 17.10 to 18.04 lost native 3D hardware acceleration for
  intel UHD 620, laptop is XPS 9370

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