Iris 26.20.100.8141 and Vulkan GZDoom

[akidd]

With the release just before 26.20.100.8141 for the first time ever on my Dell XPS I was able to play GZDoom 4.4.2 using Vulkan and got almost 20% better framerate than using OpenGL.  Before that Iris driver release the floors, walls and many sprites weren't even render (or at least visible).   I was thrilled.

I saw an update appear and applied 26.20.100.8141 - and now the same graphics issues that prevented me from using Vulkan are back.

Is this known?  I've read lots of trashing Iris drivers regarding Vulkan but it *was* working.

[Maria_R_Intel]

Hello akidd,

Thank you for posting on the Intel* Community.

To better assist you, please provide us the below report:

Intel® System Support Utility (Intel® SSU) 

• Intel® SSU Download
• Open the application and click on "Scan" to see the system and device information. By default, Intel® SSU will take you to the "Summary View". 
• Click on the menu where it says "Summary" to change to "Detailed View". 
• To save your scan, click on "Next", then "Save". 

Best regards,

Maria R.

Intel Customer Support Technician

[Maria_R_Intel]

Hello akidd,

Were you able to check the previous post? 

Let me know if you need more assistance. 

Best regards, 

Maria R.  

Intel Customer Support Technician 

[Maria_R_Intel]

Hello akidd,

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer being monitored.

Best regards, 

Maria R.  

Intel Customer Support Technician