Feedback: installation-guides/ubuntu/ubuntu-focal.html

[theno2soco]

I have been having issues trying to get No Man's Sky running using Vulkan on xubuntu 20.04 with an Intel® UHD Graphics 750 integrated GPU until I can afford a dedicated GPU.

I used this page:

https://dgpu-docs.intel.com/installation-guides/ubuntu/ubuntu-focal.html

After completing the installation I ran the configuring permissions:

makem@makem-pc:$ stat -c "%G" /dev/dri/render*
stat: cannot stat '/dev/dri/render*': No such file or directory
makem@makem-pc:$ groups ${USER}
makem : makem adm cdrom sudo dip plugdev lpadmin lxd sambashare
makem@makem-pc:~$

stat: cannot stat '/dev/dri/render*': No such file or directory - error

[ketrintel]

When /dev/dri/render* doesn't exist, it usually means the kernel driver hasn't loaded / initialized correctly. Can you look in your kernel log (dmesg) and look for any lines relating to i915?

You can also try running lsmod and see if i915 is loaded correctly.

What kernel are you using?

The Intel UHD graphics 750 might be new enough that you will need to install the kernel for 20.04.3, which from https://ubuntu.com/about/release-cycle looks like it will be the same kernel which is shipping with Ubuntu 21.04 (which is a 5.11 kernel)

[pepla]

Hi @theno2soco - have you resolve your installation issue? Can you please let us know if topic can be considered as closed or do you need any additional assistance from our side?

[theno2soco]

The game which is played via Steam opens without errors now but is unplayable because the mouse movement is very very slow.

I have not upgraded as suggested because I need expert advice upgrading in case I mess up a stable install because I don't wait until a 'proper' gfx card is reasonably available.

I have asked for advice in ubuntu forums.

[theno2soco]

I upgraded from 20.04 to 21.04
Whereas before the upgrade NMS failed due to vulcan errors, then after some weeks loaded correctly, it now hangs with a black screen and the only way out is a hard boot.
So, it was capable of playing slowly but since the update fails again

[theno2soco]

I am now using the kernel 5.13.4-051304-generic in Ubuntu 21.04 but still get the black screen.

[theno2soco]

Today, reinstalled 20.04

[pepla]

Is it working slowly again with 20.04 but no black screen?

[theno2soco]

Today, reinstalled 20.04 and I am back to square one. Vulkan errors now which is where I was just before it suddenly started to work. Which I assume was due to some Linux regular update. Maybe it will some time in the future start working again but too slow to use. I need Intel iGPU drivers!

[theno2soco]

Today I got it working but it was using software rendering! Where are the Intel IGPU drivers?

[ketrintel]

You previously mentioned that there are no files matching /dev/dri/render*, which indicates the kernel driver (i915.ko) isn't loading, which would prevent the GPU from being usable.

Can you provide the output of:

cat << EOF | sh
cat /etc/os-release
uname -a
lspci -kk | grep VGA -A 3
lsmod | grep 915
EOF

Also check your kernel log and look for any errors relating to i915.

If we can determine the i915.ko is loading and initializing the card, then next we would look to investigate if the X server is initializing correctly.

[theno2soco]

I can confirm /dev/dri/render* does not exist.
Someone said I could enable DRI3 in xorg.conf but that's beyond me :(

Maybe add below into: /usr/share/doc/xserver-xorg-video-intel/xorg.conf?

Section "Device"
Identifier "Intel Graphics"
Driver "intel"
Option "DRI" "3"
EndSection

There are errors in the kernel.log:

Your graphics device 4c8a is not properly supported by the driver in this
Jul 25 18:32:20 makems-TUF kernel: [ 1.576192] kernel version. To force driver probe anyway, use i915.force_probe=4c8a

i915.force_probe=4c8a is already in grub

NMS plays now, the only fault being that it is very very slow, so much so that it would take over 30 minutes to get to game selection.

#14.txt
i915.txt
steam latest.txt

[ketrintel]

From your kernel log, we see that the 5.8 kernel may have partial support for 4c8a, but it is still wrapped behind an "early access" flag, which can be turned off with the force_probe module parameter:

Jul 26 10:35:36 makems-TUF kernel: [    1.561088] i915 0000:00:02.0: Your graphics device 4c8a is not properly supported by the driver in this
Jul 26 10:35:36 makems-TUF kernel: [    1.561088] kernel version. To force driver probe anyway, use i915.force_probe=4c8a

A few options:

1. See if there is a linux-oem kernel provided by Ubuntu that supports the GPU. I think you can use 'ubuntu-drivers list-oem' to search for that. If there isn't a kernel provided directly by Ubuntu, then...
2. You can try to add the "i915.force_probe=4c8a" parameter to your system's kernel command line (see below), or...
3. Use one of the "tip of tree" Linux kernels from Ubuntu's various kernel PPA channels (sounds like you tried this) and the latest Mesa packages.

To try option #1, you can edit your /etc/default/grub to add "i915.force_probe=4c8a" to the GRUB_CMDLINE_LINUX_DEFAULT entry, for example:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.force_probe=4c8a"

Then regenerate your grub boot loader:

sudo update-grub

and reboot and check the kernel log again.

If that doesn't work, you would need a newer hardware enabled stack. From your other comments, it sounds like you've tried both the default 21.04 kernel as well as the latest 5.13 kernel available from the Ubuntu PPAs. It might be a combination of needing both a newer kernel -and- a newer version of Mesa and/or Wayland. We don't currently provide those packages in our repositories, but there are PPAs that provide recent builds of Mesa.

In parallel to you trying that, we can reach out to folks on the Mesa and i915 teams to see if they have any information on the status of 4c8a support.

[theno2soco]

Thank you ketrintel,

I have edited my post prior to yours before seeing yours and it covers the grub addition.
Yes, I tried 5.13 and it gave a black screen meaning a hard boot followed.
Thanks for the options.