Autocad does not start with hardware acelleration

[Anonymous]

I am in an impossible loop:

Autocad does not start with hardware accelleration on. When I turn hardware acelleration off as a startup parameter it starts in safe mode.

In safe mode I can not turn off in the settings, so I am forced allways to run in safe mode.

Also I do not understand why acad does not support harware accelleration, befor i had Acad LT 2020 and it worked fine with my GTX 2020 Super.

I have the latest drivers of everything.

What can be wrong?

[pendean]

Why did you change the startup to /nohardware in the first place?
And why do you keep starting it if you don't want it to be there?

[RobDraw]

---

@Anonymous wrote:

I am in an impossible loop:

Autocad does not start with hardware accelleration on. When I turn hardware acelleration off as a startup parameter it starts in safe mode.

---

So, this might your problem.

If you want to start with acceleration on, why do you want to turn it off during startup? If you want it to start with it off and it won't start with it on, why are you turning it off in startup?

[rbh1]

Have you tried this

Issue:
How to turn video hardware acceleration on or off in AutoCAD to improve graphics performance.
Causes:
Turning on hardware acceleration improves graphics performance and productivity. This helps overall performance, not just with 3D work.

If unexpected problems are appearing with specific video cards and drivers, toggle hardware acceleration on and off.
Solution:
There are several ways to toggle hardware acceleration in AutoCAD-based products. Try one of the following methods:
Enter the GRAPHICSCONFIG command and click the Hardware Configuration button.
Enter the 3DCONFIG command and click the Hardware Configuration button.
Enter the OPTIONS command or choose it from the Application menu to open the Options dialog box. On the System tab, click the Graphics Performance button. Then click the Hardware Acceleration button to turn it off or on.
Click the GRAPHICSCONFIG performance button in the lower-right corner of the AutoCAD application window.
User-added image
There may be a delay the first time using GRAPHICSCONFIG or 3DCONFIG or when clicking the performance button.

Note: The interface options may differ, depending on product and product version. AutoCAD LT 2011 and earlier do not support hardware acceleration and do not have 3DCONFIG.

Found at https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-e...

[Anonymous]

Thank you for taking the effort to reply.

As I state in my question: acad crashes if I have hardware acceleration on, so I am forced to start with this startup parameter.

[Anonymous]

Thank you for your answer, but in safe mode these options are disabeled.

That is why I say that I am in an impossible loop.

[Anonymous]

...because acad does not start without the parameter. It crashes.

I have all the newest drivers, re-installed etc. etc.

[hak_vz]

Which version of graphic card drivers have you got installed,  are they ISV (Independent Software Vendor) - Studio type?

With NVIDIA GeForce this drivers are Studio drivers.

[pendean]

Then you do not ever get to turn on hardware acceleration in AutoCAD without first fixing the driver problem: "latest" drivers means nothing if it is not compatible.

See post #8 above and provide requested info please.

[hans.ham]

I have a Geforce RTX 2080 Super graphics card with the NVidia Geforce STUDIO driver version 456.38

My processor is an AMD Ryzen 3950X 16 core.

Plenty of RAM and disk space.

Weeks ago mt Autocad LT 2021 was working fine with hardware acceleration.

I wonder if there is some BIOS setting causing a problem.

[hak_vz]

---

@hans.ham wrote:

I have a Geforce RTX 2080 Super graphics card with the NVidia Geforce STUDIO driver version 456.38

My processor is an AMD Ryzen 3950X 16 core.

Plenty of RAM and disk space.

Weeks ago mt Autocad LT 2021 was working fine with hardware acceleration.

I wonder if there is some BIOS setting causing a problem.

---

@AnonymousI really don't know in that's the case.

At Nvidia latest Studio driver version  457.30 - Release Date: Tue Nov 17, 2020, and there was an update after

the one you have installed. Maybe just updating drivers could help.  If you didn't change graphics card settings it should be working without problems.

Studio drivers are not meant to be overclocked, and changing some parameters (my guess) may potentially cause troubles. Reset defaults would have to work in that case.

[pendean]

@Anonymous Post screenshots of your ABOUT and GRAPHICSCONFIG command pop-ups please.

[hans.ham]

Tuner log content:

Card name:
Driver version:
Tuning Date:
Virtual device: gdi16.hdi (Software)
The card and driver does not meet the minimum requirement.

Display Adapters:
NVIDIA GeForce RTX 2080 SUPER(Primary)

Certification:
Feature Mode kFM_Software
Feature Mode Available 8
Hardware Available False
Hardware Recommended False
Status 5
Hardware ID 8
Hardware Feature Level 0
Software Feature Level 0

General Options:
Adaptive Degradation True
Discard Backfaces True
Dynamic Tessellation True
Generate Vertex Normals False
Handedness Right
Maximum LODs 6
Redraw on Window Expose True
Surface Tessellation Tolerance 92
Transparency MediumQuality

Additional System Information:
ComputerSystem
Manufacturer System manufacturer
Model System Product Name
NumberOfProcessors 1
TotalPhysicalMemory xxx-xxxxxxxx

Processor
MaxClockSpeed 3700
Name AMD Ryzen 9 3950X 16-Core Processor
NumberOfCores 16
NumberOfLogicalProcessors 32
Revision 28928

OperatingSystem
Name Microsoft Windows 10 Pro|C:\Windows|\Device\Harddisk1\Partition4
OSLanguage 1043
ServicePackMajorVersion 0
ServicePackMinorVersion 0
TotalSwapSpaceSize
TotalVirtualMemorySize 43709588
Version 10.0.18363

DiskDrive0
Model Samsung SSD 970 EVO Plus 1TB
Name \\.\PHYSICALDRIVE1
Size 1000202273280

DiskDrive1
Model WD My Book 1140 USB Device
Name \\.\PHYSICALDRIVE2
Size 3000516341760

DiskDrive2
Model Seagate Expansion Desk SCSI Disk Device
Name \\.\PHYSICALDRIVE3
Size 5000978465280

DiskDrive3
Model WDC WD20EARX-00PASB0
Name \\.\PHYSICALDRIVE0
Size 2000396321280

DesktopMonitor
MonitorManufacturer Dell Inc.
MonitorType Dell AW3418DW(DisplayPort)
Name Dell AW3418DW(DisplayPort)
ScreenHeight 1440
ScreenWidth 3440

DisplayConfiguration
DeviceName NVIDIA GeForce RTX 2080 SUPER
DisplayFrequency 60
DriverVersion
PelsHeight 768
PelsWidth 1024

VideoController
AdapterDACType Integrated RAMDAC
AdapterRAM 4293918720
ConfigManagerErrorCode 0
CurrentHorizontalResolution 3440
CurrentVerticalResolution 1440
DriverDate 20200914000000.000000-000
DriverVersion 27.21.14.5638
InstalledDisplayDrivers C:\Windows\System32\DriverStore\FileRepository\nv_dispsi.inf_amd64_98b8327e9bd736d9\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispsi.inf_amd64_98b8327e9bd736d9\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispsi.inf_amd64_98b8327e9bd736d9\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispsi.inf_amd64_98b8327e9bd736d9\nvldumdx.dll
Name NVIDIA GeForce RTX 2080 SUPER
Status OK
TimeOfLastReset
VideoArchitecture 5
VideoModeDescription 3440 x 1440 x 4294967296 kleuren

PageFile
FileName pagefile
FileSize xxx-xxxxxxxx

Process Information:
Loaded ARX and CRX Modules
acapp.arx
acapp.crx
acautoloader.crx
acautoloader.arx
acexperience.arx
acpublish.arx
acpublish.crx
AcPi.arx
acjscorestub.crx
acvmtools.crx
vl_u.crx
acblock.crx
acrevcloud.crx
acvdiff.arx
AcVDiff.crx
acxdiff.arx
acxdiff.crx
acsign.arx
acetutil.arx
vl_u.arx
acconnectwebservices.arx
acdim.arx
AcFdUi.arx
acdim.crx
acdwghistory.arx
acopmext.arx
acgsconfig.crx
acgsconfig.arx

Effects:
ACAD_LineSmoothing not supported turned off
ACAD_PerPixelLighting not supported turned off
ACAD_AdvancedMaterial not supported turned off
ACAD_FullShadows not supported turned off
ACAD_TextureCompression not supported turned off
ACAD_HQGeom not supported turned off
ACAD_GlowHighlighting not supported turned off
ACAD_Dx11 not supported turned off

[pendean]

FWIW you have a 2021.1 update that needs to be installed, go get it now.
Then...
Read this and posts after it for things to try https://forums.autodesk.com/t5/autocad-forum/safe-mode/m-p/6037691#M112492
Then read through this for other things to try https://forums.autodesk.com/t5/autocad-forum/autocad-2016-safe-mode/td-p/5624337

Then if nothing helps you have three options:
1) Roll back to 2020
2) Get a new video card
3) Stay running as you do now in 2021.

HTH

[hans.ham]

sorry, but update 2020.1 does not exist for autocad.

buy another graphics card is an hilarious advice: my card is brand new, very common and high-end.

[hans.ham · Accepted solution]

Thank you for your effort. I solved the problem otherwise.

I used the latest NVidia Geforce STUDIO driver version 456.38 with the assumption that "newer is better".

I uninstalled this and installed an older driver from 2019: version 431.70

Now Autocad works with hardware accelleration on.

@hak_vz @rbh1  @RobDraw