The Vulkan driver ended up moving ray tracing data to and from the slower external system memory, resulting in an overall slowdown. This happened due to the fact that the code lacked one line that was responsible for reallocating memory. According to him, the Vulkan ray tracing implementation used external system memory (RAM connected to the motherboard) instead of the graphics card's local GDDR6 memory. An error in the code was discovered by one of the engineers for Intel graphics drivers for Linux, Lionel Landverlin. The fix has been included in the open source Intel Mesa Vulkan driver.

Read also: best laptop for engineering student The error was contained in the driver code and led to incorrect memory allocation in the system. If you are, make sure you end up on 5.19.13 (or later) to avoid the problem.The developers of the Intel GPU drivers for Linux have released an update that fixes a bug and improves performance in ray tracing by 100x. If you're not using a laptop with Intel graphics, you can update without worry. There's already a fix out for this issue in the form of Linux stable 5.19.13, which reverts the update that caused the problem while maintaining updates elsewhere in the kernel. Most Linux users don't need to worry, either. Of course, AMD Advantage laptops have nothing to worry about. Notebooks using NVIDIA Optimus or other switchable graphics are vulnerable to this bug as well.

Keep in mind that even laptops that have an NVIDIA or AMD GPU likely also have Intel graphics-at least, if they have an Intel processor.

Because of that, the Intel driver is responsible for managing the connection to the panel, and that's why a bug in the driver can wreck the display. In this case, however, Linux 5.19.12 includes a bugged Intel graphics driver that has 'potentially bogus panel power sequencing delays, which may harm the LCD panel.' Most laptops with Intel graphics-which is most laptops-have the built-in display wired up directly to the integrated Intel graphics chip, even if they also have a discrete GPU. The relevant post from the Linux kernel mailing list.

Intel graphics driver update for linux