Intel HD 530 - Graphics Corruption in Mozilla Firefox

[idata]

Hi,

I am experiencing random graphics corruption in Mozilla Firefox.

The issue:

Whenever I minimize Firefox and restore it, the Firefox window appears garbled and text appears to be illegible. Moving the mouse cursor over the affected areas, seems to bring the missing parts of the window into view.

Minimizing, maximizing, or resizing Firefox appears to correct the issue (until I minimize Firefox again and the issue reappears).

While this is annoying and impedes productivity, the graphics corruption is limited only to Firefox. However, since that is my main web browser, I would like to get the issue fixed asap.

Points to observe:

• My laptop has an Intel HD 530 graphics subsystem (running on an Intel Core i7-6700HQ processor)
• The laptop also has a dedicated nVidia GeForce GTX 950M graphics card
• I am running Windows 10 Home (64-bit)
• The issue occurs only in Mozilla Firefox
• Mozilla does not list this as a known bug in their repository (as far as I can tell, I am the only one experiencing this issue)
• The corruption persists even after restarting the laptop or starting the machine from cold boot
• The issue occurs at random
• I have the latest version of Firefox (with all plugins updated)
• Creating a new Firefox profile (even with no add-ons installed) will not solve the corruption issue
• I have 2 versions of Microsoft Direct X installed (Direct X 12 and 9.0c for playing older games) but the issue persisted even before I installed version 9.0c
• I am running version 20.19.15.4360 of the Intel HD Graphics Driver (I have not updated the drivers nor have I tried any other version yet)
• I experienced a graphics corruption while typing this post and have attached a screenshot below to demonstrate my issue

Any help will be greatly appreciated...

(in the above screenshot, the complete top part is missing. If I were to move the mouse cursor over the affected areas, then some missing parts will reappear. Minimizing, maximizing, and resizing Firefox will also correct the issue temporarily)

[PY]

Forgot to mention that I also have the latest build (14393.51) and all drivers and bios updated from acer.com. Seems solid as for now..

Gapudo, you should try it, just revert back if you get problems.

[idata]

There is a new driver version https://downloadcenter.intel.com/download/26347/Intel-Beta-Graphics-Driver-for-Windows-10-and-Windows-7-8-1-15-40-?product=88345 4539. Please test it and let me know your findings.

Additionally, if the problem remains, I need thehttp://www.intel.com/content/www/us/en/support/graphics-drivers/000005848.html graphics report and the https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility system report

Allan.

[Allan_J_Intel1]

I need you to report if this issue still remains with driver version 4539.

Also, attach graphics report and system reports.

Allan.