My Dell laptop flickers on the screen as if it were "flashing." This problem occurs whenever I use a kernel> 3.16. It is also important to say that the bug occurs when I am not touching the mouse. When I am using the mouse, the "bug" does not appear. I appreciate those who suggest something

dmesg:
[ 15.505073] nouveau 0000:08:00.0: bus: MMIO write of 0000001f FAULT at 6013d4 [ IBUS ]
[ 13.092373] pstore: crypto_comp_decompress failed, ret = -22!
[ 9.883837] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GFX0.DD02._BCL], AE_NOT_FOUND (20191018/psargs-330)
[ 9.883851] ACPI Error: Aborting method \_SB.PCI0.RP05.PEGP.DD02._BCL due to previous error (AE_NOT_FOUND) (20191018/psparse-529)

Please provide here using code tags the output from:run from any X terminal, not from a fullscreen tty. According to https://downloads.dell.com/manuals/a...uide_en-us.pdf the 3442 contains dual GPUs. Dual GPUs (Intel+NVidia) for optimal performance require following special X driver installation instructions that go by the label Optimus, which involves installing packages labeled prime or bumblebee.

Graphics: Card-1: Intel Haswell-ULT Integrated Graphics Controller bus-ID: 00:02.0 chip-ID: 8086:0a16
Card-2: NVIDIA GF117M [GeForce 610M/710M/820M / GT 620M/625M/630M/720M]
bus-ID: 08:00.0 chip-ID: 10de:1140
Display Server: X.Org 1.16.4 drivers: nouveau,intel (unloaded: fbdev,vesa)
Resolution: 1366x768@60.07hz
GLX Renderer: Mesa DRI Intel Haswell Mobile GLX Version: 3.0 Mesa 10.3.2 Direct Rendering: Yes

You neglected to wrap your command output in code tags. I neglected to ask which distro you have installed. You'll need to locate and follow Optimus dual graphics installation configuration instructions provided for your distro.