Screen resolution stuck at maximum 1280x1024 for CRT monitor(s)

The Win 7 Professional (32 bit) computer in question (the first of two planned upgrades from XP) was assembled in June 2016 and ran well with a Philips Brilliance 109P CRT monitor with resolutions 1029x1440/60Hz and 1600x1200/75Hz, but since March/April 2017 the screen resolution has been stuck at a maximum of 1280x1024/85Hz. This is both when trying Screen Resolution (including Advanced Settings and List all modes) and Graphics Properties.

The Device Manager sees the Philips 109P as a PnP monitor.

The same happens with a Samsung Syncmaster 1100DF CRT monitor.

A newer flat monitor (borrowed just to see) works properly at 1920x1080.

The Philips 109P monitor works properly (up to 1920x1440) when used on a PC with XP.

Switching cables between the monitors makes no difference either way (the flat screen works weel with both cables and the CRT fails with both cables).

At computer startup, and at Windows initiation, everything looks fine and normal with a small cursor arrow and spinning wheel, but as soon as Windows starts up properly the arrow/wheel become larger. Also, the Graphics Properties show the 85/75/60Hz refresh rates for the monitor correctly, so somehow somewhere it seems that there is a recognition of the actual properties.

So far unsuccessfully, among other things I have tried to roll back the versions of the graphics card driver and the Windows monitor driver, and I have asked Philips about a Win 7 driver (none has been found (yet). I have also tried to roll back some (probably irrelevant) Windows updates

The roll backs were based on the thought that the issue might have been caused by some unfortunate update.

Some tasks can only be performed on the old XP still running (with its exquisite Sony GDM-FW900), so the situation is obviously non viable, and until solved the second upgrade is out of the question.

Can anyone help?

we need your specs

Speccy - Publish Snapshot of your System Specs - Windows 7 Help Forums

you might also try forcing win7 to use a different monitor driver such as the Philips SoHo 109S using device manager > monitor > update driver

Another solution would be to override your current EDID settings. Here is a tool that does that

Custom Resolution Utility (CRU)

try these steps, any of them might fix this

asus ez update for your motherboard, (in the utilities section)
H81M-PLUS | Motherboards | ASUS USA


intel driver detect
Intel® Driver Update Utility

if they do not help, you can still try the Philips SoHo 109S driver. I did not mean to download it from philips - its already on your hard drive since its built into windows. This link tells you how - in step 2 select "monitor", and in step 7 look under "philips" instead of "compatible usb .."

Windows is unable to find a compatible driver for the Myo armband Welcome to Myo Support

John,

I just tried all your three latest suggestions, restarting after each, but still no resolution change.

A new strangeness (which may hopefully hold a key): in the Device Manager, the monitor is now listed as 109S, but in Desktop>Screen Resolution/Graphics Properties it is still listed as 109P.

Thank you very much again.

RoasterMen,

I can no longer remember whether I have tried that earlier.

I presume you mean Device Manager>Monitor>Philips 109S>Uninstall+

Is there any risk that the monitor will fail to work if I uninstall that driver, or what is the worst that may happen?

I just noticed that even though the monitor is now listed as 109S instead of 109P, the Windows driver is still the same as stated in an earlier post (6.1.7600.16385 from 21/06/2006).

Jacob Bugge said:

I just noticed that even though the monitor is now listed as 109S instead of 109P, the Windows driver is still the same as stated in an earlier post (6.1.7600.16385 from 21/06/2006).

That driver is from before the SP1 version of windows 7, so your windows update is way out of date. Here's how you get up to date

How to Update Windows 7 All at Once with Microsofts Convenience Rollup