Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

4.5 hot fix is out

Featured Replies

"Added configuration option to toggle UI hardware acceleration mode (UIHardwareAcceleration)"

I assume that's the "DisableHWAcceleration" registry edit that was suggested when ReShade was acting up in 4.4, which has now become a user option?

[MSI MPG X870E Carbon | 9800X3D (PBO +200Mhz / -20 Offset) | Corsair 64GB DDR5 (Custom Timings) | RTX 4090 Founders Edition (Undervolted) | WD SNX 850X 4TB + 4TB | Antec Flux Pro]

 

  • Replies 313
  • Views 52.3k
  • Created
  • Last Reply
  • Commercial Member

Dear All,

Anyone still having issues with performance after the hotfix, please rebuild your shaders and be sure to check if you have this registry key:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Avalon.Graphics\DisableHWAcceleration

If you do, please delete it, restart your PC and launch P3D again..

There is a new setting under Ptepra3d.cfg called UIHardwareAcceleration, it is important to have this setting set to True.

The setting works as follow:

UIHardwareAcceleration=False - Disables Hardware Acceleration for P3D.

UIHardwareAcceleration=True - Enables Hardware Acceleration for P3D.

People using Reshade might need to disable it, however please try your performance first with HW acceleration enabled.

Regards,
Simbol

Edited by simbol

Signature3.png

Oficial Website: https://www.FSReborn.com
Discord Channel: https://discord.gg/XC82TqvKQ3

  • Commercial Member
4 minutes ago, Sethos1988 said:

"Added configuration option to toggle UI hardware acceleration mode (UIHardwareAcceleration)"

I assume that's the "DisableHWAcceleration" registry edit that was suggested when ReShade was acting up in 4.4, which has now become a user option?

Correct, please delete your registry key.. and use the setting instead, however be advised performance might be affected with this disabled on certain systems.

S.

Edited by simbol

Signature3.png

Oficial Website: https://www.FSReborn.com
Discord Channel: https://discord.gg/XC82TqvKQ3

14 minutes ago, simbol said:

Dear All,

Anyone still having issues with performance after the hotfix, please rebuild your shaders and be sure to check if you have this registry key:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Avalon.Graphics\DisableHWAcceleration

[...]

Thanks Simbol, but honestly, a little bit to much to ask users to modify their registry for a "hotfix", no? Obviosuly the problem is not solved by the hotfix? Can you elaborate a little bit further on this registry entry? I have it in my registry, but as I did not observe any FPS issues already without the hotfix, I wonder what the registry entry stands for? Reason I ask: I might simply not have seen the FPS drop due to my FPS limit at 30. But if this registry entry might be the reason for reduced FPS, I also want to get rid of it...

Greetings, Chris

AMD Ryzen 7 9800X3D, 2x32GB DDR5 6000MT/s RAM, MSI RTX 4090 Ventus 3X, Windows 11 Home, MSFS2024

  • Commercial Member
6 minutes ago, AnkH said:

Thanks Simbol, but honestly, a little bit to much to ask users to modify their registry for a "hotfix", no? Obviosuly the problem is not solved by the hotfix? Can you elaborate a little bit further on this registry entry? I have it in my registry, but as I did not observe any FPS issues already without the hotfix, I wonder what the registry entry stands for? Reason I ask: I might simply not have seen the FPS drop due to my FPS limit at 30. But if this registry entry might be the reason for reduced FPS, I also want to get rid of it...

This registry setting disables hardware acceleration for all applications on your PC, you want this enabled to get the best performance out of your system.

P3D 4.4 enabled hardware acceleration hardcoded inside the source code, but some people complained about this change since Reshade and other overlaying /recording software were not working correctly with P3D 4.4. and as a result LM gave the registry setting for a work around for user experiencing this problem.

P3D 4.5 disabled hardware acceleration via internal code, to correct the issues stated above as people were complaining about issues, etc.

P3D 4.5 HotFix has re-enabled Hardware Acceleration by default, and included a setting via Prepard3.cfg to override it if necesary: UIHardwareAcceleration=false. NOTE: It was determined via beta tests that the change in hardware acceleration via internal code caused the performance drops in comparison with P3D 4.4 under certain systems.

So you need to delete this registry setting if you have it in your system.

Regards,
Simbol

 

 

Signature3.png

Oficial Website: https://www.FSReborn.com
Discord Channel: https://discord.gg/XC82TqvKQ3

1 hour ago, SunDevil56 said:

Pete, you can do the full installer, or just the client, which apparently addresses the quote, "performance issues seen on some systems and configurations" according to the hotfix page at LM. 

Thank you very much 

 
 
 
 
 
  913456
14 minutes ago, simbol said:

This registry setting disables hardware acceleration for all applications on your PC, you want this enabled to get the best performance out of your system.

P3D 4.4 enabled hardware acceleration hardcoded inside the source code, but some people complained about this change since Reshade and other overlaying /recording software were not working correctly with P3D 4.4. and as a result LM gave the registry setting for a work around for user experiencing this problem.

P3D 4.5 disabled hardware acceleration via internal code, to correct the issues stated above as people were complaining about issues, etc.

P3D 4.5 HotFix has re-enabled Hardware Acceleration by default, and included a setting via Prepard3.cfg to override it if necesary: UIHardwareAcceleration=false. NOTE: It was determined via beta tests that the change in hardware acceleration via internal code caused the performance drops in comparison with P3D 4.4 under certain systems.

So you need to delete this registry setting if you have it in your system.

 

 

 

Was that related to cpu affinty issues? By any chance? 

Very interesting. 

Edited by tooting

 
 
 
 
 
  913456
19 minutes ago, simbol said:

This registry setting disables hardware acceleration for all applications on your PC, you want this enabled to get the best performance out of your system.

P3D 4.4 enabled hardware acceleration hardcoded inside the source code, but some people complained about this change since Reshade and other overlaying /recording software were not working correctly with P3D 4.4. and as a result LM gave the registry setting for a work around for user experiencing this problem.

P3D 4.5 disabled hardware acceleration via internal code, to correct the issues stated above as people were complaining about issues, etc.

P3D 4.5 HotFix has re-enabled Hardware Acceleration by default, and included a setting via Prepard3.cfg to override it if necesary: UIHardwareAcceleration=false. NOTE: It was determined via beta tests that the change in hardware acceleration via internal code caused the performance drops in comparison with P3D 4.4 under certain systems.

So you need to delete this registry setting if you have it in your system.

Regards,
Simbol

 

 

So essentially, we've now reached a point where for some users, they might be 'forced' to take the 4.5 performance decrease if they need to use ReShade and disable HWA?

[MSI MPG X870E Carbon | 9800X3D (PBO +200Mhz / -20 Offset) | Corsair 64GB DDR5 (Custom Timings) | RTX 4090 Founders Edition (Undervolted) | WD SNX 850X 4TB + 4TB | Antec Flux Pro]

 

12 minutes ago, tooting said:

with P3D 4.4 under certain systems.

......looks like KEY word to me. 

Alex 

2 hours ago, Christopher Low said:

......smug 4.4 user enters stage left with popcorn in hand :tongue:

I haven’t got popcorn I got a beer lol

Angus Rowlands: i7 8700 RTX Asus Strix 2080, 16 GB RAM

  • Commercial Member
3 minutes ago, Sethos1988 said:

So essentially, we've now reached a point where for some users, they might be 'forced' to take the 4.5 performance decrease if they need to use ReShade and disable HWA?

Not necessarily.

I use Reshade with 4.5 on my main simulation PC and I don't have any performance issues with 4.5, as I said, no all systems are affected so you will need to TEST on your own computer.

S.

 

Signature3.png

Oficial Website: https://www.FSReborn.com
Discord Channel: https://discord.gg/XC82TqvKQ3

2 hours ago, Christopher Low said:

......smug 4.4 user enters stage left with popcorn in hand :tongue:

I haven’t got popcorn I got beer lol

Angus Rowlands: i7 8700 RTX Asus Strix 2080, 16 GB RAM

5 minutes ago, Sethos1988 said:

So essentially, we've now reached a point where for some users, they might be 'forced' to take the 4.5 performance decrease if they need to use ReShade and disable HWA?

You beat me too it 

 
 
 
 
 
  913456

I found the problem of P3D not starting after the hotfix. The WX Advantage Radar is the reason. Removed the MV_WXM.dll from the Modules folder and problem solved. I guess it needs to be updated.

Simulators: Prepar3D v5.4  | X-Plane 12 | DCS  World  MSFS 2024 | 
PC Hardware: Dell U3417W AMD Ryzen 7 9800 X3D | ASUS TUF 5070 Ti ASUS TUF B580 Plus Wifi | G.Skill Z5 Neo 64GB 3000Mhz CL30 | Samsung 990 Pro 2TB + 970 EVO Plus 1TB + 860 EVO 2TB + 850 EVO 1TB, Western Digital Black Caviar Black 6TB Corsair RM1000i Corsair 280 Titan RX | VRM Fan | Fractal Design Define S2 Gunmetal |
Flight Controls: Fulcrum One Yoke Virpil VPC WarBRD Base Virpil VPC MongoosT-50CM Grip, Thrustmaster Warthog+F/A-18C Grip VIER IM POTT Sidestick CPT Side | Thrustmaster TPR Rudder Pedals | Virtual Fly TQ6+Throttle Quadrant | Sismo B737 Max Gear Lever Monsterteck Desk Mounts WINWING EfisL+FCU+MCDU |
My fleet catalog: Link                                                                                                                                                       

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.