How to fix the problem with too bright image?

Question

Iron

Hello!
A friend bought a new system unit last week, installed Windows and all the necessary drivers for him, everything works, so to speak, runs, jumps, but one problem remains.
This is a very bright image of the picture, the feeling that the brightness was set to 80-100%, I had to manually reduce it to 30% to see at least some text.
Connected via VGA, increased brightness was observed and is observed everywhere, i.e. in the BIOS, during the installation of the OS and directly in the OS itself, so the problem is definitely not at the software level.
PC Specs:
Deepcool THETA 16 PWM Soc-1150/1155/1156 4pin 18-26db Al+Cu 95W 401g clips
Gigabyte PCI-E ATI GV-R725OC-GI R7 250 2Gb 128b DDR3 1100/1800 DVI/HDMI/CRT/HDCP RTL
WD Original SATA-III 1Tb WD10EZEX (7200rpm) 64Mb 3.5
Foxconn TSAA-427 black 450W ATX 1*80mm fan 2* USB 2.0 audio
MSI B75MA-E33 Soc-1155 iB75 DDR3 mATX AC'97 8ch. GbLAN VGA+HDMI
DDR3 4Gb 1600MHz Kingston (KVR16N11S8/4) OEM Non-ECC
DVD+/-RW LG Gh24NSC0 black SATA int oem
Intel Original Pentium Dual Core x2 G2030 Soc-1155 (CM806370145000S R163) (3.0/5000/3Mb/H)
Unfortunately, I can’t say the exact model of the monitor, the only thing I remember is the brand of the monitor - SUPRA, I say in advance that on the previous PC, bought 5 years ago, the picture was normal, but what happened here is a mystery.
What is the direction to go in order to solve this problem? And where does the malfunction lie, in the PC, in the cables, in the monitor, or, at worst, in the software?
UPD: We tried to change the monitor, the problem persisted, so it remains to sin only on the PC.

Answer 1

In the video card driver settings, you need to adjust the brightness.