Garry's Mod fullscreen doesn't work

[Creepis]

It straight up doesn't work in fullscreen, I get a seizure with a flickering screen whenever I switch to it.

Troubleshooting steps I've run:

-Clean Gmod via the factory reset.bat
-Do another clean with these launch commands and disable Steam Cloud so it doesn't automatically use my .cfg

-novid -autoconfig -default +host_writeconfig config.cfg full +mat_savechanges +quit

-Display drivers and everything else is up to date, last re-installations were with DDU as well.

Probable culprits:

-My AMD GPU (Sapphire Nitro+ 5700XT).
-My Windows 10 installation for some reason.

Current solution:

Run Garry's Mod in borderless fullscreen.
Cons:
Worse performance.
No TV Gamma adjustment (PERP is dark as fuck).

Potential solutions:

-Don't fucking buy AMD for old ass DirectX 9 or 11 games.
-Sell the 5700XT for a RTX Gen.2
-Use custom colour settings and deep fry this game like Escape from Tarkov to be able to see anything.
-I end up using cheats.




If you manage to fix my game I might just buy you a game within my budget.

 

[Double J]

@Creepis has your issue been resolved or is it still on going?

 

[Creepis]

@Creepis has your issue been resolved or is it still on going?

Unresolved, most likely hardware related issue (GPU), if not it's software (Windows 10 installation).

 

[Creepis]

Did you try any of the windows 7/8 compatibility modes?

same result, nothing

 

[Creepis]

For those wondering, this is what it looks like.

Spoiler: epilepsy warning, flashing images

If no one else has a idea I'll request this thread to be closed soon without a solution to be found.

 

[Clarky]

For those wondering, this is what it looks like.

Spoiler: epilepsy warning, flashing images

If no one else has a idea I'll request this thread to be closed soon without a solution to be found.

Tried different resolutions?

 

[Creepis]

Tried different resolutions?

Yes, nothing

 

[blobvis 2.0]

Yes, nothing

Also tried different graphics inside gmod (as I assume gmod is the only one giving that?)?

 

[Creepis]

Also tried different graphics inside gmod (as I assume gmod is the only one giving that?)?

?

I only have one dedicated GPU, no integrated graphics. If you mean graphic options, they don't change anything and it's still broken.

 

[Hayden]

Few questions:

• Do you have access to a different GPU? Preferably an Nvidia one to test whether it is definitely being caused by the graphics card and not something else like a dodgy driver.
• Has the issue occured in any other games?
• Do you have more than one monitor? Maybe try disconnecting your additional displays to see if it makes a difference.

 

[Creepis]

Few questions:

• Do you have access to a different GPU? Preferably an Nvidia one to test whether it is definitely being caused by the graphics card and not something else like a dodgy driver.
• Has the issue occured in any other games?
• Do you have more than one monitor? Maybe try disconnecting your additional displays to see if it makes a difference.

1. RX580, really cannot be bothered to re-install drivers, take out from other PC, etc.
2. No.
3. Only 1 monitor, tried several ports. Using DisplayPort, problem persisted on HDMI on my old monitor along with HDMI to DisplayPort cable.

 

[Double J]

@Shiwo has this issue been resolved? If so, Could you provide how you fixed it?

 

[chickenrappa]

@Shiwo I was reading a thread on the AMD forums about how this is actually a common issue with games that are early access. This thread looks like some help was given although I am unfamiliar with the AMD software. It does seem to be an AMD issue as he described that the AMD software was taking over once you go full screen which caused the flickering through VSync issues, check it out if this issue is still occurring. https://community.amd.com/t5/drivers-software/freesync-flicker/td-p/253951

 

[Creepis]

FreeSync is turned off completely, I'd have to see if Radeon Software applying some graphic changes to Garry's Mod does some fuckery.

 

[chickenrappa]

In the thread there, they were saying that fullscreen was causing AMD to take over which resulted in the VSync issues, but maybe the software is just garbage and turning it off doesn't actually turn it off if it's fluctuating that much.

 

[Creepis]

Close this please, I give up. I'm currently using custom display settings in the Radeon control panel whenever its night time in-game so I can actually see something.

If I have any other solution or found the problem I'll make sure to re-open this thread and edit it into the OP.

Thank you for all the help.