#No option to scale on GPU, any ideas why? RTX 5080

1 messages · Page 1 of 1 (latest)

languid parrotBOT
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In order to understand your problem/issue further, we would like you to provide additional specs of your PC/Laptop. Please provide the following specs:

  • Laptop Model (If you are using a laptop)
  • CPU Model
  • Motherboard Model
  • RAM Model & Speed (Please tell us if you have enabled XMP or using custom timings)
  • GPU Model
  • SSD/HDD Model & Capacity (Specify where is Windows installed to)
  • PSU Model & Capacity (Not applicable for laptop)
  • Windows Version (Please also state the Windows version as well, such as 23H2 or 24H2, etc.)
  • Monitor model, resolution, refresh rate and cable used (HDMI or DisplayPort)
  • Apps & games you are trying to run (Please also specify where you get your games from like Steam/Battle.net/Xbox Game pass)

In addition to the following specs, we would like you to answer the following questions:

  • Have you reinstalled the Nvidia Drivers by removing them with DDU and reinstalling them by downloading the drivers manually and installing them?
  • Have you made any changes to your PC/Laptop in the past few days (such as software/hardware install)?
  • Have you encountered any error codes/bluescreens/graphical glitches when encountering the problem? Describe steps to reproduce the problem. Please send a photo/screenshot/video of the problem here as well.
quiet horizon
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I found a problem in CS2 that white text looks very pixelated on black background and black text looks the same on white background. Low quality or something. I thought that maybe scaling is the problem (as I play on 4:3) so I checked my nvidia settings and I don't see option to scale on gpu anymore.

Text looks normal when I switch to native res, I also can't see that problem on a screenshot or recording.

CPU - 7800x3d
Motherboard - B650 Gaming Plus Wifi
RAM - Lexar 32GB (2x16GB) 6000MHz CL30 Ares RGB (XMP enabled)
GPU - GeForce RTX 5080 16G GAMING TRIO OC
Windows - Installed on SSD
Monitor - PG27UCDM (OLED)
Games - CS2

Have you reinstalled the Nvidia Drivers by removing them with DDU and reinstalling them by downloading the drivers manually and installing them?
I used DDU and NVC/Nvidia App
Have you made any changes to your PC/Laptop in the past few days (such as software/hardware install)?: I changed my gpu from 3070 ti to 5080
Have you encountered any error codes/bluescreens/graphical glitches when encountering the problem? Describe steps to reproduce the problem. Please send a photo/screenshot/video of the problem here as well: No and it's impossible to tell from screenshot what the problem is

rancid forum
languid parrotBOT
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If you are experiencing display issues, graphical artifacts, dithering or black screens especially on high resolution and high refresh rate monitors like the Samsung G9, it may have been caused by DSC (Display Stream Compression) being enabled. Display Stream Compression was developed to reduce the amount of data that is required to be transmitted between the video source, like what a graphics card is, to a monitor or TV. The goal is to compress the video stream without degrading the quality and therefore allowing higher resolutions and refresh rates. The need for DSC arises as the connections between the source and the monitor or TV are limited by the capability of the ports and cables alike. If the GPU detects that a display supports DSC, DSC mode will be enabled automatically if the display exceeds the bandwidth of the ports (HDMI or Displayport). Please check the model of your monitors, the GPU and the ports on your GPU & monitor with the respective manufacturers (LG, Samsung, Nvidia, AMD, Intel) to determine the maximum supported resolution with & without DSC. For more details on bandwidth & resolutions can be found here: Guide to Display Cables / Adapters (v2) - Displays - Linus Tech Tips

For Nvidia GPUs:
Using a monitor/display with DSC support over DisplayPort 1.4+:

  • Display Stream Compression over DisplayPort 1.4+ is supported on Turing class (GeForce RTX 20-series/GeForce GTX 16-series) and higher GPUs.

Using a monitor/display with DSC support over HDMI 2.1:
-Display Stream Compression over HDMI 2.1 is supported on Ampere class (GeForce RTX 30-series) GPUs.

  • While you may use a an older GPU (eg. GeForce GTX 10-series) with a display that supports Display Stream Compression over DisplayPort 1.4+/HDMI 2.1, you may not be able to select the highest resolution or refresh rate supported by the display.
  • When a display is connected to the GPU and is set to DSC mode, the GPU may use two internal heads to drive the display when the pixel rate needed to drive the display mode exceeds the GPU’s single head limit. This may affect your display topology when using multiple monitors. For example if two displays with support for DSC are connected to a single GeForce GPU, all 4 internal heads will be utilized and you will not be able to use a third monitor with the GPU at the same time.
  • NVIDIA DSR, NVIDIA DLDSR and NVIDIA Image Scaling are not supported when DSC mode is enabled for 40-Series GPU and below.
  • If the GPU detects that a display supports DSC, DSC mode will be enabled automatically. Some displays may allow you to disable DSC by changing the communication link from the displays internal settings (eg. changing the DisplayPort mode from Displayport 1.4 to DisplayPort 1.2)

To determine if your PC monitor, notebook display or TV supports Display Stream Compression, please refer to your display manufacturer.

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A monitor that uses DisplayPort 1.4 or HDMI 2.1 with DSC may cause reduced amounts of available video connections.

A GeForce GPU internally provides up to four display heads. For most monitors, each monitor connection uses one display head.

Very high end displays that use DisplayPort 1.4 or HDMI 2.1 with DSC utilize enough bandwidth that they use two display heads for one monitor. This will reduce the maximum available displays used with a single GPU.

On DisplayPort 1.4a with HBR3, if a monitor's capabilities exceed the rough equivalent of 4K120 (3840x2160 at 120Hz), including other resolution equivalents (e.g. 1080p400 (1920x1080 at 400Hz) or 1440p250 (2560x1440 at 250Hz)), the display might utilize DSC. (Some capability is lost due to timing requirements.)

To use the maximum amount of displays with such monitors with a single GPU, use the monitor's OSD to disable DSC, or use an alternative, lower-end connector if available.

Alternatively, if your CPU has an iGPU, you can enable it (if it's not enabled by default), and plug any extra monitors to the motherboard's display output(s) instead.

As a third option, if your computer does not have an iGPU or motherboard display outputs, and has extra physical PCIe x16 slots (does not need to be electrically x16) with at least two slots' worth of clearance, you can add another video card to immediately add extra video outputs. If using an NVIDIA card, make sure that the driver you're using supports both video cards; mixing driver versions is not allowed, so very old cards may be unusable.

quiet horizon
rancid forum
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Oh yes you're right

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you do have a displayport 2.1a and a DP 2.1a cable

quiet horizon
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anywhere I can check if it's using DSC?

rancid forum
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You have to check from your monitor OSD

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or monitor settings

quiet horizon
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20gbs x 4 lines = 80gbs so no DSC

rancid forum
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Also, GPU scaling may be disabled if HDR or Dolby Vision is turned on

rancid forum
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refer to the monitor OSD

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aka your monitor side

quiet horizon
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I disabled "DSC support"

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still no gpu scaling

rancid forum
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and the DP 2.1a cable?

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Don't use the cables from the box

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use a proper certified DP 2.1 cable

quiet horizon
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It's not that easy with dp 2.1 cable

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but the one that Asus gives is DP80 certified

rancid forum
quiet horizon
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1000%

rancid forum
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Double check here

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Never use the cables provided from the boxes

quiet horizon
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why you think it's not working

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I used 2nd cable (normal dp 1.4 from the box) and I could see that it's using DSC before I switched to rtx 5080 yesterday

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I switched cables too and I can see that it's not DSC

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alt tabbing fixed, etc.

quiet horizon
rancid forum
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Fair enough

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Could you double check if the resolution is set to native or not?

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and the refresh rate

quiet horizon
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I did, I also tried different res

image.png
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Could it be that monitor is not allowing gpu scaling?

rancid forum
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Might be

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your monitor firmware is up to date?

quiet horizon
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yep

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but do you think my problem in cs2 is because of scaling?

rancid forum
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unfortunately when you have a 4k display but your screen size is small, you will have issues with extreme high density pixels

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especially on a 27 inch 4k monitor

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you should have get like a 34 inch 4k

quiet horizon
quiet horizon
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and it was working fine on 3070 ti

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I can's say tho if I had selected "GPU scaling", I didn't check it before as I had no problems

rancid forum
quiet horizon
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Ye so like I said, before switching gpus it was fine 💀 I had no problems in cs

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damn it's so annoying'

quiet horizon
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I guess I'm not the only one with that problem