I have a Lenovo T480 with a UHD 620 integrated card. I am trying to run SolidWorks 2016 and the option for Software Open GL is checked and

[TBrew2]

The dynamic highlighting is what is slow and you can watch the lines generate it is so slow in Software Open GL.

I have a Lenovo T480 with a UHD 620 integrated card. I am trying to run SolidWorks 2016 and the option for Software Open GL is checked and grayed out. With software Open GL, it runs too slow. I can run Solidworks in the safe mode and the check box for Software OpenGL is left unchecked and it runs fine. I run it everyday for several weeks this way and it's great except I have to setup Solidworks every time I run it. Why is this setting being forced to Software Open GL? Thanks

[AlHill]

You failed to mention what OS you are using. Also, you should use ONLY the drivers provided by lenovo and not the generic Intel drives.

Download, run, AND ATTACH the results of this utility, and an Intel support engineer will be able to assist you.

https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility

Doc

[TBrew2]

Hi Al, I wasn’t 100% sure that the driver was from so I installed the latest from Lenovo and retested SolidWorks with the exact same results. I’ve attached the report from SSU and I am running Win Pro 10 64 Bit. Thanks, Tracy

[Amy_C_Intel1]

Hello TBrew2, Thank you for posting on the Intel® Communities. Please, double check the file you attached. I am unable to see it in your thread. Have you checked with https://www.solidworks.com/sw/support/customer-software-support.htm regarding this box? Since it also happens with Lenovo's driver, it's possible that is related to settings configuration and not the drivers. Check with their support regarding this feature and how to enable it. Let me know their response. Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi, I've attached the file (previously attached to the email that was sent to me). I have contacted SolidWorks support and they quickly traced it to the Open GL setting. There is a software lock which prevents SolidWorks from using hardware Open GL. So my understanding is that this is in the driver which they have no control over.

Tracy

[Amy_C_Intel1]

What is the full report from SolidWorks support? When did the issue started? Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi Amy, It was actually Hawk Ridge Systems. They did not provide a report but walked me through the diagnostics. The issue started when first installing SolidWorks on this computer.

[Amy_C_Intel1]

Which driver versions have you tested so far? Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi Amy, First attempt: Source: https://support.lenovo.com/us/en/downloads/ds502213 (I notice this link is no longer valid) n24dt12w = Intel HD Graphics Ver 24.20.100.6344 Second attempt (Currently in use): Source: https://pcsupport.lenovo.com/sa/en/downloads/DS502224 n24da12w = NVIDIA N17S Intel 24.20.100.6223 / Nvidia 24.21.13.9836 Tracy

[Amy_C_Intel1]

Thanks Tracy. Please, try the following version: https://downloadcenter.intel.com/download/27199/Intel-Graphics-Driver-for-Windows-15-47-?product=126789 Use this method to install the driver:https://www.intel.com/content/www/us/en/support/articles/000005629/graphics-drivers.html Use the "Device Manager Method" to uninstall the current driver installed: https://www.intel.com/content/www/us/en/support/articles/000005598/graphics-drivers.html Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi Amy, I performed the uninstall per the directions provided. Then installed the driver Ver. 22.20.16.4815 all per the clear instructions you provided. I then tested SolidWorks to find that Dynamic Highlighting is still extremely slow and the Software Open GL is still checked and greyed out as before (SolidWorks Options). So basically, no difference. Tracy

[Amy_C_Intel1]

Try the same uninstallation and reinstallation steps for this driver version: https://downloadcenter.intel.com/download/27058/Intel-Graphics-Driver-for-Windows-15-46-?product=126789

[TBrew2]

This version (22.20.16.4771) behaves exactly the same when testing for Dynamic Highlighting and greyed/checked Software Open GL in the options.

[Amy_C_Intel1]

Thanks. Try with the https://downloadcenter.intel.com/download/28139/Intel-Graphics-Driver-for-Windows-10?product=126789 and https://downloadcenter.intel.com/download/28405/Intel-Graphics-BETA-Driver-for-Windows-10?product=126789 Find the steps for the installation below: https://downloadmirror.intel.com/28139/eng/ReleaseNotes_DCH_25.20.100.6444.pdf https://downloadmirror.intel.com/28405/eng/ReleaseNotes_DCH_Beta_25.20.100.6448.pdf Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi Amy, Tried those two and still cannot uncheck “Use software Open GL” and the Dynamic Highlighting is slow same as with all the other drivers so far. Thanks, Tracy

[Amy_C_Intel1]

Our driver versions are generic and they may not work as expected in some third-party computers. At this stage, I would recommend to contact Lenovo to double check if they have more drivers (apart from the ones you tested) for your computer model. Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Thanks Amy, Tracy

[Amy_C_Intel1]

Additionally, make sure that you are running the latest Windows 10 updates. I also researched and found some suggestions for this issue in the https://forum.solidworks.com/ that include some registry tweaks. You can try posting there for peer to peer assistance. Let us know how it goes. Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hi Amy, I performed the following steps to check that SW Open GL was still checked/greyed and it was. It may be useful to others trying to solve this problem. 1. Open regedit. 2. Navigate to HKEY_CURRENT_USER\Software\SolidWorks\Solidworks 2016\Performance\Graphics\Hardware\Current. 3. Right-click on the "Current" key folder, then click "Permissions...". 4. Click "Advanced". 5. Click "Disable Inheritance" and then click "Remove all inherited permissions from this object." 6. Check the box titled "replace all child object permission entries with inheritable permission entries from this object." 7. Press OK to save the changes. 8. Restart SOLIDWORKS and see if OpenGL mode is still enabled. Thanks, Tracy

[Amy_C_Intel1]

Let's hope is helpful for other users. Thanks to you Tracy! Amy C Intel Customer Support Technician Under Contract to Intel Corporation

[TBrew2]

Hopefully. I’ll keep an eye out for any activity and may pitch in if it helps. Thanks, Tracy