Monitor goes to Unsupported mode

[JustAComputerUser]

When I as soon start up a game sometimes after a while my screen will go black then it will say "Unsupported mode"
The pc remains on but I cannot Alt+tab or do anything. The screen just says "Unsupported mode"
So I am forced to shut off my pc, by cutting off the power.

Please help me this problem is really bad.


System Information
------------------
Time of this report: 5/21/2016, 14:44:17
Machine name: ******-PC
Windows 7
Language: English (Regional Setting: English)
System Manufacturer: Gateway
System Model: FX6800-01e
BIOS: Default System BIOS
Processor: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (8 CPUs), ~2.7GHz
Memory: 6144MB RAM
Available OS Memory: 6136MB RAM
Page File: 2165MB used, 10103MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode


---------------
Display Devices
---------------
Card name: ATI Radeon HD 4800 Series
Manufacturer: Advanced Micro Devices, Inc.
Chip type: ATI display adapter (0x9442)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_9442&SUBSYS_E810174B&REV_00
Display Memory: 3826 MB
Dedicated Memory: 1015 MB
Shared Memory: 2811 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: DWM32H1G1
Monitor Id: WDT1E5A
Native Mode: 1366 x 768(p) (59.790Hz)
Output Type: DVI
Driver Name: aticfx64.dll,aticfx64.dll,aticfx64.dll,

 

[Spencer_10]

** edited look below **

 

[Spencer_10]

I just notice something

Current Mode: 1920 x 1080 (32 bit) (60Hz)

Native Mode: 1366 x 768(p) (59.790Hz)

put your desktop resolution back to 1366x786

 

[JustAComputerUser]

I just notice something

Current Mode: 1920 x 1080 (32 bit) (60Hz)

Native Mode: 1366 x 768(p) (59.790Hz)

put your desktop resolution back to 1366x786

Nah that's not it, tried messing with the resolution a lot.

 

[Spencer_10]

ok whats your current display resolution set at ?

 

[JustAComputerUser]

ok whats your current display resolution set at ?

Current Mode: 1920 x 1080 (32 bit) (60Hz)

 

[Spencer_10]

ok whats your current display resolution set at ?

Current Mode: 1920 x 1080 (32 bit) (60Hz)

Your Native resolution I believe is 1366 x 768, e.g your maximum true resolution of your monitor.

set it to this. as anything else is wrong

Make sure game launcher if it allows you to set it before game launches change there also.

 

[JustAComputerUser]

ok whats your current display resolution set at ?

Current Mode: 1920 x 1080 (32 bit) (60Hz)

Your Native resolution I believe is 1366 x 768, e.g your maximum true resolution of your monitor.
set it to this.
Make sure game launcher if it allows you to set it before game launches change there also.

It's still not the resolution...

 

[mightydoe]

ok whats your current display resolution set at ?

Current Mode: 1920 x 1080 (32 bit) (60Hz)

Your Native resolution I believe is 1366 x 768, e.g your maximum true resolution of your monitor.
set it to this.
Make sure game launcher if it allows you to set it before game launches change there also.

It's still not the resolution...

HEY BRO...open your games .cfg file (configuration for the game e.g. arma3.cfg) edit the refresh rate to 60

It is probably jacked way up in the .cfg to 170+ and your flatscreen tv wont handle that

source: I'm a genyus