I have the same issue. Mine is a fresh install on my dell lattitude e5470. I ran screenfetch to give the specifics.
OS: Solus 4.2 fortitude
Kernel: x86_64 Linux 5.11.22-180.current
Disk: 500GB NVMe SSD
CPU: Intel Core i5-6200U @ 4x 2.3GHz [45.0°C]
iGPU: Mesa Intel(R) HD Graphics 520 (SKL GT2)
RAM: 16GB DDR4
It just blips dark for a moment, then its fine. Never had this issue before. I've had both Windows 10 and Ubuntu (Manjaro) on this laptop before and have had no issues.