Blender 4.2.2 (snap package) became slow and laggy on Ubuntu 22.04.5 LTS #127847
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Reference: blender/blender#127847
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System Information
Operating system:
Graphics cards:
Blender Version
c03d7d98a4
) (snap package).Short description of error
Hello,
It's not an error sensu stricto.
I simply noticed that the whole software became laggy after recent system updates I performed (
apt
andsnap
) on an Ubuntu 22.04.5 laptop (ThinkPad P15s Gen 2i). During these updates, Blender was updated to version 4.2.2 LTS (2024-09-24 :c03d7d98a4
).Since then, even when simply opening the software, without even loading any project file, the navigation throughout the software has become really slow and laggy, rendering it almost unusable.
Surprisingly, CPU or RAM utilization did not increase, and remained low in both cases.
Is there anything I can do to get Blender running smoothly again?
Thanks!
Warm Regards.
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible):
c03d7d98a4
) snap package on Ubuntu 22.04.5 LTS.More details
Hi! Could you give us the system info file (Help > Save System Info), this way we could see which GPU/driver exactly is your blender using. I suspect that your blender is somehow using a software-gl instead of either of your GPUs.
Thanks!
the system info file created from Blender is already attached to the main post.
Thanks @swiss_knight , sorry about that it didn't show up or I missed it.
Apparently it's using a software GL driver atm:
It's probably because of your system update, it could have broken some configurations in the process. Could you try purging all graphics drivers and re-install intel & nvidia drivers?
Okay, I tried to switch from the
xserver-xorg-video-nouveau
(open source) driver to the officialnvidia-driver-550
(proprietary, tested) in thesoftware-properties-gtk
tool:But now, Blender refuses to boot:
If this may help:
and:
@swiss_knight Since you also have two video cards (integrated + nvidia), try to see if you could force nvidia card to run blender.
It might also mean blender bug under wayland, will pin devs.
Blender 4.2.1 (snap package) became slow and laggy on Ubuntu 22.04.5 LTSto Blender 4.2.2 (snap package) became slow and laggy on Ubuntu 22.04.5 LTSGot problems too using Linux Mint with a not-so-new laptop (GeForce GTX 960M).
Laggy on solid mode with very simple projects, making it unusable.
I'm not used to see Blender so out of breath!
@BenoitGreant try to make sure your blender is actually running on your discrete graphics card, and not a virtual software OpenGL driver (You can see that using Help > Save System Info). It's best to test package downloaded from blender.org. You might need to set
DRI_PRIME=1
before launching blender to force it to use nvidia card.@ChengduLittleA here (was) my system info : https://pastebin.com/wnpZGHPm
I updated (with the help of chatGPT) my nvidia drivers:
I also had to struggle a little bit because of the Secure Boot.
now it seems to work correctly!
@BenoitGreant hi! the system info file shows that blender is using software GL to render stuff, hence it's slow.
I presume this is before you purge/re-install your nvida driver right? If it works correctly now, then I guess the problem is solved.
Solved, yes, thanks.
OK will close this now.
@ChengduLittleA it's not solved for me because Blender is no more booting when using the nvidia driver, see my latest comment above: #127847 (comment)
Looks like could be a wayland problem. Does blender start up in X11 session? Or have you encountered similar problems in other graphics programs? Also, did you try using
prime-select
to force nvidia card?@ZedDB any chance you are more familiar with wayland?
Hi, updating
NVIDIA-wgl-wayland
may resolve the issue. Can you check?reference: #103999 (comment)
@swiss_knight ^
Hi, could you also verify the issue on official buildbot builds as well: https://builder.blender.org/download/daily/
I still have problems with Blender 4.2.3LTS + Linux Mint 21 + nvidia driver 560.
If I double a click a Blender file (which will automatically open Blender then load itself), it seems that Blender initializes with software GL - full log here :
If I first open Blender than load the file manually, the Nvidia driver is used - full log here :
My global opinion, using this hardware, is that Blender is really slower to start and unstable than any version before.
Hi @PratikPB2123 ,
there is no such apt package called
nvidia-wgl-wayland
in Ubuntu's 22.04 repositories, but there is a package calledlibnvidia-egl-wayland1
and this last one is already up-to-date:I see, thanks. Did you check with official buildbot builds?: #127847 (comment)
No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.
Thanks again for the report. If the problem persists please open a new report with the required information.