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February 17th, 2024 00:01
AW2725DF DLDSR/DSR unusable over DP 1.4
DLDSR/DSR only works on this monitor via HDMI at native 1440p all the way up to spec -144hz 8-bit. When connected via DP at native 1440p, however, even at resolutions/frame rates as low as @ 60Hz 8bit (where DSC should not be used), DLDSR/DSR does NOT work. This issue would indicate that the monitor is using, or communicating that it is using, DSC at resolutions and refresh rates that do not require DSC. While in theory, DLDSR should work even with DSC enabled, it doesn’t when the monitor requires more than one internal head unit to operate at its native resolution and refresh rate. This monitor should absolutely not need two internal head units, leading me to believe it’s a poor DSC implementation in general.
This a serious issue for a lot of people who would like to use DLDSR/DSR over DP 1.4, and needs to be addressed.



Otaku76
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March 5th, 2025 16:54
Enable Dldsr and dsr on AW2527DF and other monitors possibly
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e968-e325-11ce-bfc1-08002be10318}\0000
"EnableTiledDisplay"=dword:00000000
accidently discovered by messing with registry tweaks by putting value to 0, 1 to restore 360hz
"copy-paste from reddit"
On my windows 11 work well after add this line in registry editor. Max refresh rate will be 240hz and 8-bit :)
DELL-Chris M
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November 21st, 2024 11:20
The Alienware displays team has stated to us this morning that the AW2725DF will not receive a firmware update to allow the disabling of DSC (Display Stream Compression) in the Menu. DLDSR (Deep Learning Dynamic Super Resolution)/DSR (Dynamic Super Resolution) is only supported by Dell on the AW2725DF HDMI 2.1 port.
(edited)
Vanadiel
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February 17th, 2024 01:49
Read this article: DSC Monitors
johnburgundy44jeezus
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February 17th, 2024 03:28
Making a statement like they did for the AW 3225QF dolby vison toggle would suffice. I am returning regardless, a gimped hdmi port stuck at 144hz whilst msi has 360hz. I am not switching to hdmi if i want to use dldsr, there should be a dsc toggle. Do better dell
(edited)
Vanadiel
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February 17th, 2024 17:35
@johnburgundy44jeezus
Nvidia clarifies that DSR/DLDSR can be used with a DSC-enabled monitor. The only requirement for it to work is that the display needs to be connected to the GPU with a single cable. This won’t be a problem for most gamers, but a few GPU/monitor configurations require two or more display connections to work (particularly first-generation 4K and 8K displays).
eriksrvenge
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February 17th, 2024 18:46
@Vanadiel literally none of what you just said is relevant
Vanadiel
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February 17th, 2024 20:34
@eriksrvenge why not? Title says "DLDSR/DRS unusable over DP 1.4 due to poor DSC implementation" and in another thread you stated "DLDSR/DSR does not work when DSC is being used, this would indicate that DSC is not operating correctly via DP 1.4"
I am simply stating that DSC has nothing to do with it not working, as Nvidia states DLDSR/DRS works with DSC, as long as only a single cable it being used to connect to the displaY.
Vanadiel
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February 17th, 2024 20:45
Now what you could try it disable Gsync, as this is not a native Gsync monitor. I know from past experiences that Gsync on a non-native Gsync monitor can cause oddball issues.
eriksrvenge
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February 17th, 2024 20:52
@Vanadiel it’s not relevant, because it’s incorrect. It’s not that any monitor can use DLDSR with DSC if they’re using a “single cable”, it’s if they’re using a single “head unit”.
Even if a “single monitor” is connected to a PC using a “single cable”, the displays pixel density may still require the usage of more than one internal head unit of the GPU. That’s why I said in the other thread that DLDSR cannot be used with DSC with some monitors.
Now, you would think that the requirement of more than one internal head unit is why some monitors with a high pixel density and refresh rates (such as this one) cannot use DLDSR with DSC, but that’s not the case with 1440p 360hz or 4k 240hz, or at least it shouldn’t be. As I explained above, this issue does not exist on the MSI models which suggests there may be an issue with the monitor itself.
(edited)
Vanadiel
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February 17th, 2024 21:07
@eriksrvenge Stating that DLDSR cannot be used with DSC is factually incorrect as long as you don't exceed the pixel limit of a single head unit.
So it does work with DSC, as long as you don't use more than 1 head unit. And that is the issue, as there's no direct way to determine if a monitor is using 1 or more head units.
superbroleon
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February 20th, 2024 20:20
@Vanadiel What are you even on about? Like @eriksrvenge already pointed out nothing you are saying is relevant here. It doesn't matter if it "could theoretically work on some monitors while using DSC", it clearly does not on this monitor, which was the point after all.
It's a problem that needs to be addressed. A way to turn off DSC at lower resolutions / refresh rates, when it's not required, would fix this.
Doctor Hades
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February 26th, 2024 09:08
I agree that there needs to either be a way to disable DSC on this monitor with a lower refresh rate limit or the monitor needs a firmware update so that this is automatically disabled when the user sets a lower refresh rate that does not require data stream compression to be enabled. The monitor should then re-enable DSC when the user is using higher refresh rates such as 240 and 360 Hz.
I think the AW2725DF is a superb monitor but it does seem that basic in terms of menu functionality. I mean even the Panel Care options are basic with no option to disable or change the interval of the pixel shifting algorithm or any kind of logo detection dimming. These are all things I would expect to see on a monitor at this price range even with a three-year burn-in protection warranty.
Vanadiel
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February 26th, 2024 15:20
@superbroleon The point I am trying to get across is that while it does not work on this monitor, DSC might not be the issue.
So a toggle to turn off DSC might not solve the issue.
If you are running on lower resolution and low refresh rate, like someone has already tried, it should run on 1 head, in which case it will work with DSC enabled as per Nvidia's own explanation. The fact that apparently it does not, points to a possible different issue.
It only fails with DSC once you use more than 1 head, because that is not supported.
And another interesting part it it does work using HDMI 2.1, which will be using DSC also to reach 360 Hz. That's why I believe it's not related to DSC. Seems to be related instead to the DP port.
(edited)
pritster5
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March 2nd, 2024 00:42
@Vanadiel "And another interesting part it it does work using HDMI 2.1, which will be using DSC also to reach 360 Hz."
HDMI2.1 is capped at 144hz no matter what. Even though the HDMI2.1 spec supports 1440p 240hz. I have no idea why 144hz is the limit in this mode.
(edited)
pritster5
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March 2nd, 2024 00:49
Y'all might find this article interesting: https://tftcentral.co.uk/news/nvidia-dsr-and-dldsr-do-work-with-dsc-monitors-sometimes