hello guys gzdoom is flickering when im on main menu and settings and also when screen is melting. i search for solutions but none of those helped me. what should i do?
my graphics card: amd radeon r7 m340 its up to date
windows 11
i have the latest gzdoom version
im using project brutality mod, but even when i dont use any mods its still flickering
im loading mods using ZDL
also i have an another gpu intel graphics 520, but i use amd because its better i think but however i tried to change to opengl, still nothing
gzdoom flickering
Moderators: GZDoom Developers, LZDoom Developers, UZDoom Developers
Forum rules
Please be as descriptive as possible in your posts (list your hardware and operating system, the version of the source port you are using, any mods you are running and how they're being loaded, etc.)
This will help others to give you a solution!
Please be as descriptive as possible in your posts (list your hardware and operating system, the version of the source port you are using, any mods you are running and how they're being loaded, etc.)
This will help others to give you a solution!
-
Redneckerz
- Spotlight Team
- Posts: 1146
- Joined: Mon Nov 25, 2019 8:54 am
- Graphics Processor: Intel (Modern GZDoom)
Re: gzdoom flickering
R7 M340 sounds like a laptop card, so you have to check if AMD's equivalent of Nvidia Optimus is playing tricks and it is instead running on the Intel GPU, which is a known GZDoom issue.
-
Admen
- Posts: 5
- Joined: Tue Jun 26, 2018 1:12 pm
Re: gzdoom flickering
Redneckerz wrote:
> R7 M340 sounds like a laptop card, so you have to check if AMD's equivalent
> of Nvidia Optimus is playing tricks and it is instead running on the Intel
> GPU, which is a known GZDoom issue.
yes im using a laptop, however i tried your solutions and the issue is not solved unfortunately. before i was running gzdoom on my intel gpu, now i switched to amd gpu and is still flickering. for nvidia optimus i dont have that because i dont have a nvidia graphics card. flickering is not a big problem, but i would rather not have it.
> R7 M340 sounds like a laptop card, so you have to check if AMD's equivalent
> of Nvidia Optimus is playing tricks and it is instead running on the Intel
> GPU, which is a known GZDoom issue.
yes im using a laptop, however i tried your solutions and the issue is not solved unfortunately. before i was running gzdoom on my intel gpu, now i switched to amd gpu and is still flickering. for nvidia optimus i dont have that because i dont have a nvidia graphics card. flickering is not a big problem, but i would rather not have it.
-
Rachael
- Posts: 13967
- Joined: Tue Jan 13, 2004 1:31 pm
- Preferred Pronouns: She/Her
Re: gzdoom flickering
Switching between AMD and Intel is the "Optimus" that Redneckerz was talking about, that is the Trademark
that Nvidia used to describe the technology even though it's nothing more than a glorified render-to-texture and put-the-texture-on-the-other-GPU's-screen that AMD copied easily.
Unfortunately the best solution might be to switch to OpenGL-ES using the Intel GPU. That will probably provide the best experience overall. If you want to actually use your GPU though, you can also try VkDoom and see if it will run better on your AMD. VkDoom supports the vast majority of GZDoom mods easily.
Unfortunately the best solution might be to switch to OpenGL-ES using the Intel GPU. That will probably provide the best experience overall. If you want to actually use your GPU though, you can also try VkDoom and see if it will run better on your AMD. VkDoom supports the vast majority of GZDoom mods easily.
-
dpJudas
-

- Posts: 3177
- Joined: Sat May 28, 2016 1:01 pm
Re: gzdoom flickering
On Windows 11 you can set up on a per-program basis which GPU it should use (this applies to both OpenGL, Vulkan, GZDoom and VKDoom). You do this by navigating to System > Display > Graphics in the Settings app. From there you can click the Browse button, select GZDoom.exe or VKDoom.exe, then select which GPU you want it to use.
With the vulkan backend you can also switch between them, using "vk_device 0" to select the primary one and "vk_device 1" for the other one. This also works in either port.
With the vulkan backend you can also switch between them, using "vk_device 0" to select the primary one and "vk_device 1" for the other one. This also works in either port.
-
Admen
- Posts: 5
- Joined: Tue Jun 26, 2018 1:12 pm
Re: gzdoom flickering
[quote=Rachael post_id=1252712 time=1717601422 user_id=429]
Switching between AMD and Intel is the "Optimus" that Redneckerz was talking about, that is the Trademark
that Nvidia used to describe the technology even though it's nothing more than a glorified render-to-texture and put-the-texture-on-the-other-GPU's-screen that AMD copied easily.
Unfortunately the best solution might be to switch to OpenGL-ES using the Intel GPU. That will probably provide the best experience overall. If you want to actually use your GPU though, you can also try [url=https://vkdoom.org/download]VkDoom[/url] and see if it will run better on your AMD. VkDoom supports the vast majority of GZDoom mods easily.
[/quote][quote=dpJudas post_id=1252714 time=1717603556 user_id=18514]
On Windows 11 you can set up on a per-program basis which GPU it should use (this applies to both OpenGL, Vulkan, GZDoom and VKDoom). You do this by navigating to System > Display > Graphics in the Settings app. From there you can click the Browse button, select GZDoom.exe or VKDoom.exe, then select which GPU you want it to use.
With the vulkan backend you can also switch between them, using "vk_device 0" to select the primary one and "vk_device 1" for the other one. This also works in either port.
[/quote]
Switching to OpenGL-ES using the Intel GPU worked for me! Thanks for the help guys
Switching between AMD and Intel is the "Optimus" that Redneckerz was talking about, that is the Trademark
Unfortunately the best solution might be to switch to OpenGL-ES using the Intel GPU. That will probably provide the best experience overall. If you want to actually use your GPU though, you can also try [url=https://vkdoom.org/download]VkDoom[/url] and see if it will run better on your AMD. VkDoom supports the vast majority of GZDoom mods easily.
[/quote][quote=dpJudas post_id=1252714 time=1717603556 user_id=18514]
On Windows 11 you can set up on a per-program basis which GPU it should use (this applies to both OpenGL, Vulkan, GZDoom and VKDoom). You do this by navigating to System > Display > Graphics in the Settings app. From there you can click the Browse button, select GZDoom.exe or VKDoom.exe, then select which GPU you want it to use.
With the vulkan backend you can also switch between them, using "vk_device 0" to select the primary one and "vk_device 1" for the other one. This also works in either port.
[/quote]
Switching to OpenGL-ES using the Intel GPU worked for me! Thanks for the help guys