Owners of laptops with Intel processors using Linux are advised to avoid the Linux 5.19.12 kernel. This is due to a kernel bug that can cause physical damage to the display. Fortunately, the problem has already been fixed in the Linux 5.19.13 kernel.
Users of laptops with Intel processors and OS with Linux kernel 5.19.12 complained about the problem of “white flashing” displays. A Linux engineer has found that this problem can ruin the LCD. He urged users to immediately return to an earlier version of the OS. The critical issue prompted the developers to release a quick update.
The problem seems to be due to the Intel graphics driver. Linux kernel engineer Ville Sirial describes it as an incorrect panel power-up delay. Developer Greg Kroah-Hartman, who released version 5.19.13 of the Linux kernel, said that users should only upgrade to the new kernel if they experience this problem.
It is noted that the problem affects every laptop based on the Intel platform, in which the display is directly connected to the integrated graphics solution. All Nvidia Optimus-enabled laptops, and possibly some Intel-Radeon combo laptops, can also experience this problem, as they have the always-integrated GPU driving the screen, even when the discrete GPU handles the graphics. You can secure your laptop by disabling Optimus mode.
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Engineers investigating the LCD issue did not say if the new Linux kernel versions 6.0 and 6.1 contain fixes for this issue.
Source: techspot
