VanguardLH wrote in :

KenK wrote:

Microtek 815c.

Also, that monitor is probably around 16 years old. I saw a user in a
forum note in 2014 that he had this monitor for 11 years, so 5 years
later that monitor is now 16 years old. CRTs go out of focus which
cannot be adjusted out. They also lose brightness, and upping the
brightness results in loss of focus or contrast. Could be you've been
upping the brightness to compensate for a corroded cathode ray gun
(the heater). There is a trick of overheating the filament to burn
off the corrosion but it is hazardous: at the higher temperature and
current, the emitter could burn out and the monitor goes dead (no
electrons anymore to illuminate the phosphor on the inside of the
screen). Shops used to do that trick but had the customer sign a
waiver acknowledging the attempt could result in a completely dead CRT
monitor. I did it once accidentally when I reattached the multi-pin
connector on the back of the tube's neck resulting in the wrong
voltage on the heater, overheating it, realized what I did when the
screen became very bright, removed and repositioned the connector
(you'd think they'd be polarized), and the monitor was bright and I
even had to turn down the brightness. Gee, I fixed it. Luckily that
was back in tech school and any CRTs sent there for repair were
waivered because they had students working on them.

With such an old monitor, and with almost no shops working on them
anymore, try lowering the brightness to reduce the bloom of the
characters. That could result in an overly dim monitor that would
have sharper but dimmer characters, so just as hard to read as before.
You can't get around CRTs getting old and losing brightness and
focus. Time to start budgeting for a new monitor. If it's an
LCD/LED, make sure you set the screen resolution in Windows the same
as the monitor's native resolution. You get fuzziness if you set the
Windows resolution different due to interpolation between pixels.



My 815c is an LED, not CRT.


--
I love a good meal! That's why I don't cook.