Request for Display Stream Compression (DSC) support in the linux drivers

I would love to test it as well since I have 5120x1440 240Hz Display, currently can only run at 120Hz which is devastating

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it should be noted that owners of the samsung odyssey g9 (5kx2k@240) are also viable test subjects since that monitor also requires DSC in order to be fully utilized in linux. It is not an 8k60hz resolution exclusive issue. Other resolutions can also mimic the issue as long as it oversaturates the bandwidth limit of hdmi2.1, although these 2 are probably the most commonly complained about recently…

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Samsung Odyssey Neo G9 user here. I can also test for 5120x1440 with 240hz.

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I have odyssey g9 and can also provide some testing. Please, free me from windows.

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We need to be free from Windows as soon as possible, I am getting tired of it

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There are lots of people with an 8K 60 display, me included. There’s a thread about it at 8K60 output with RTX 3070 and Samsung Q900TS over HDMI 2.1. I purchased my Samsung QN800A for use with my RTX 3090 over a year ago with the intention of using 8K 60 Hz on Linux and it is still not working.

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Samsung Odyssey G9 user here, would like to throw my hat in to test any DSC enabled drivers if you need it.

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I’m on the Samsung Odyssey G8, also would be willing to text DSC drivers should there be an option to do so!

Odysssey G9 here, willing to test DSC in 240Hz.

Odyssey Neo G9 User here, would also be willing to test DSC drivers!

Odysssey G9 here, willing to test DSC in 240Hz.

Here on driver version 520.56.06 with my RTX 3090 on Linux kernel 6.0.1, there is still no DSC! With 7680 x 4320 resolution, still only 30 Hz is available.

Can we get some ETA on when 8K 60 Hz will be available, especially as it has been a widely advertised feature for a couple of years now?

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Same here! Have an 8k TV, disappointed to see 60Hz is limited to Windows.

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This seems like a widely requested feature. There are also a few other threads with lots of views asking for the same:

they don’t care about us

It’s being worked on, but it’s not a simple feature so I don’t have an ETA.

As Andy noted in this comment on GitHub, DSC is already enabled and working at lower pixel clocks, but a more complicated hardware configuration is needed to support the extremely high pixel clocks needed to support 8K@60Hz or extremely high refresh rates at lower resolutions.

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It’s very reassuring that it’s being worked on. Really looking forward to it!

Driver R535 Beta mentions this feature, so I’d presume it’s out now

Added support for driving very high pixel clock mode timings such as 8K @ 60Hz. Please see the “MaxOneHardwareHead” X11 ModeValidation token in the README for details.

Confirmed. FINALLY got their crap together and can run 5120x1440@240hz on 535. About time.

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Also confirmed working :)