Ошибка libGL: не удалось загрузить драйверы iris и swrast в Ubuntu 20.04

У меня есть несколько проблем (см. Сообщения ниже) с запуском стороннего научного программного обеспечения (например, coot, pymol или chimera).

Я использую двоичный файл coot (0.9.5). Chimera - это сборка 1.14 42018. Ubuntu 20.04.2 LTS Gnome. Я использую pymol-open-source от Github

Graphic card: VGA compatible controller: Intel Corporation UHD Graphics 620 (Whiskey Lake)
Model: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz

. Похоже, есть некоторые проблемы с радужной оболочкой и swrast (см. Сообщение ниже).

Я всегда получаю это сообщение для химеры:

libGL error: MESA-LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open swrast: /usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: swrast
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  152 (GLX)
  Minor opcode of failed request:  3 (X_GLXCreateContext)
  Value in failed request:  0x0
  Serial number of failed request:  890
  Current serial number in output stream:  891

Я получил это сообщение для пимола:

Qt not available, using GLUT/Tk interface
libGL error: MESA-LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open iris: /usr/lib/dri/iris_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: iris
libGL error: MESA-LOADER: failed to open swrast: /usr/lib/dri/swrast_dri.so: cannot open shared object file: No such file or directory (search paths /usr/lib/x86_64-linux-gnu/dri:\$${ORIGIN}/dri:/usr/lib/dri)
libGL error: failed to load driver: swrast
freeglut Unable to create OpenGL 1.0 context (flags 0, profile 0)
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  152 (GLX)
  Minor opcode of failed request:  24 (X_GLXCreateNewContext)
  Value in failed request:  0x0
  Serial number of failed request:  50
  Current serial number in output stream:  51
 PyMOL: abrupt program termination.

Спасибо за помощь.

lsmod | grep 
drm rm_kms_helper 184320 1 i915 
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper 
sysimgblt 16384 1 drm_kms_helper 
fb_sys_fops 16384 1 drm_kms_helper 
drm 491520 9 drm_kms_helper,i915

$ glxinfo | grep Vendor
Vendor: Intel Open Source Technology Center (0x8086)

$ lshw -C video 
WARNING: you should run this program as super-user. 
*-display 
description: VGA compatible controller 
product: UHD Graphics 620 (Whiskey Lake) 
vendor: Intel Corporation 
physical id: 2 
bus info: pci@0000:00:02.0 
version: 00 
width: 64 bits 
clock: 33MHz 
capabilities: vga_controller bus_master cap_list rom 
configuration: driver=i915 latency=0 
resources: irq:150 memory:9b000000-9bffffff memory:50000000-5fffffff ioport:3000(size=64) 
memory:c0000-dffff

$ vainfo 
libva info: VA-API version 1.7.0 
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so 
libva info: Found init function __vaDriverInit_1_7 
libva info: va_openDriver() returns 0 
vainfo: VA-API version: 1.7 (libva 2.6.0) 
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 20.1.1 () 
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD 
VAProfileMPEG2Main : VAEntrypointVLD 
VAProfileH264Main : VAEntrypointVLD 
VAProfileH264Main : VAEntrypointEncSliceLP 
VAProfileH264High : VAEntrypointVLD 
VAProfileH264High : VAEntrypointEncSliceLP 
VAProfileJPEGBaseline : VAEntrypointVLD 
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
VAProfileVP8Version0_3 : VAEntrypointVLD 
VAProfileHEVCMain : VAEntrypointVLD 
VAProfileHEVCMain10 : VAEntrypointVLD 
VAProfileVP9Profile0 : VAEntrypointVLD 
VAProfileVP9Profile2 : VAEntrypointVLD