I have recently bought a Thinkpad T490 with an Intel i7 CPU and an NVIDIA GeForce MX250 graphics card (and an integrated Intel HD-Graphics 620) and installed Ubuntu 18.04 LTS. After encountering some graphics bugs I wanted to check whether all drivers are up to date.
The first thing I noticed is that in the "Additional Drivers" tab of software-properties-gtk
, Intel is listed as "Intel Corporation: Unknown - this device is not working" and my Nvidia graphics card is listed as "NVIDIA Corporation: Unknown" (see image).
Next I tried to open "NVIDIA X Server Settings", but the window is almost empty (image). When I open it from console via nvidia-settings
, i get the following output:
# nvidia-settings
ERROR: Error querying enabled displays on GPU 0 (Missing Extension).
ERROR: Error querying connected displays on GPU 0 (Missing Extension).
** Message: 09:38:37.446: PRIME: Requires offloading
** Message: 09:38:37.446: PRIME: is it supported? yes
ERROR: nvidia-settings could not find the registry key file. This
file should have been installed along with this driver at
/usr/share/nvidia/nvidia-application-profiles-key-documentati
on. The application profiles will continue to work, but
values cannot be prepopulated or validated, and will not be
listed in the help text. Please see the README for possible
values and descriptions.
I have tried disabling secure boot, since that seems to have fixed similar problems for other people, but that didn't change anything. I also tried installing newest NVIDIA-drivers, as was indicated in many posts with similar problems, but nothing changed.
Update: I removed all drivers with sudo apt purge nvidia*
and reinstalled the latest driver (440) as instructed in this thread. Nothing changed, except that in nvidia-settings
there is now only the "prime-profiles" option, so even less then before (see image).
Some outputs that might be relevant:
# lshw -c display
*-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: 02
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:147 memory:dc000000-dcffffff memory:70000000-7fffffff ioport:3000(size=64) memory:c0000-dffff
*-display
description: 3D controller
product: GP108M [GeForce MX250]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:3c:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=nvidia latency=0
resources: irq:156 memory:db000000-dbffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:2000(size=128)
# lspci -v
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (Whiskey Lake) (rev 02) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device 2278
Flags: bus master, fast devsel, latency 0, IRQ 147
Memory at dc000000 (64-bit, non-prefetchable) [size=16M]
Memory at 70000000 (64-bit, prefetchable) [size=256M]
I/O ports at 3000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [40] Vendor Specific Information: Len=0c <?>
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [d0] Power Management version 2
Capabilities: [100] Process Address Space ID (PASID)
Capabilities: [200] Address Translation Service (ATS)
Capabilities: [300] Page Request Interface (PRI)
Kernel driver in use: i915
Kernel modules: i915
...
3c:00.0 3D controller: NVIDIA Corporation GP108M [GeForce MX250] (rev a1)
Subsystem: Lenovo Device 2278
Flags: bus master, fast devsel, latency 0, IRQ 156
Memory at db000000 (32-bit, non-prefetchable) [size=16M]
Memory at 80000000 (64-bit, prefetchable) [size=256M]
Memory at 90000000 (64-bit, prefetchable) [size=32M]
I/O ports at 2000 [size=128]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [250] Latency Tolerance Reporting
Capabilities: [258] L1 PM Substates
Capabilities: [128] Power Budgeting <?>
Capabilities: [420] Advanced Error Reporting
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
Capabilities: [900] #19
Kernel driver in use: nvidia
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia