frisbfreek
Recent posts
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
I'm also happy to share my full EDID info -- this forum is probably not the right forum though. Let me know if you're interested and how I can do so.
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
I have the 65" QN800A! It's still available for $2000 online, which IMO is actually a pretty good price given the size and resolution you get (good 32" 4K moni…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
Ok that edit fixed the compilation problems. edid-decode gives pretty much the same information as SwitchResX, except it has options for some more details, suc…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
Thanks on the suggestions. I can indeed switch HDR on and off (which switches between 8 and 10 bit), but that's a pretty standard Windows capability, while cus…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
I should note that the EDID had both VIC 199 in "Data Block #1 standard CTA Timings" as well as "Data Block #9 Extended Data Block: YCbCr 4:2:0 capability map…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
I can definitely get 8K60 4:4:4 working using my 3060 Ti, so the TV is not the issue. I just tried creating a custom timing in my version of Intel Graphics Com…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
Thanks joevt, I always appreciate the depth of knowledge you bring! So to clarify, I'm running Windows 10 on a Lenovo X1 Carbon Gen9 with Iris Xe graphics, so…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
Did some digging and found this thread: /thread/csv-1580-thunderbolt-4-portable-5-in-1-hub-connecting-3-displays/ @MST1407 said this: “… for DSC to work, Decod…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
It's a TB4 port, so bandwidth and capabilities shouldn't be an issue there. According to https://vesa.org/vesa-display-compression-codecs/, DSC 1.1 doesn't eve…
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Replied to CAC-1586 not giving 8K @ 60hz 4:4:4
The 8K TV definitely does, as I can also get 8K 60hz 4:4:4 with a 3060 Ti via HDMI 2.1 output. I don’t know for sure if Iris Xe does (as finding instances of i…
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Started CAC-1586 not giving 8K @ 60hz 4:4:4
I'm currently using the CAC-1586 with a Tiger Lake laptop. I can get either 8K @ 60hz 4:2:0 or 8K @ 30hz 4:4:4, but not 8K @ 60hz 4:4:4. Is there a firmware up…
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Started Progress/timing of CAC-1585?
Hi Club3D! With Tiger Lake announced and USB4/Thunderbolt 4 enabled laptops on the horizon, are there still plans to release the CAC-1585? Is there updated tim…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
Hmm it’s now unavailable with no planned stock date. Hope they didn’t find a critical flaw!
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
It supports DSC compression in the DP 1.4 stream input and HDMI 2.1 output, but it's not claiming that it does the decompression. Think about it: if it were co…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
@Pittyh, I'm not sure what your point is? The adapter will convert a DP 1.4 signal to an HDMI 2.1 signal; this signal can be uncompressed or use DSC. However,…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
Nope, you’re not factoring in the 8/10 encoding rate in DisplayPort 1.4. This means that it uses 10-bits to transmit 8-bits of data. So your 32.4 Gbps max band…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
@Pittyh assuming your C9 doesn’t have DSC, you cannot do 4K @ 120hz 4:4:4 10-bit because that is beyond the bandwidth of DisplayPort 1.4. From what @Monstieur…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
I don’t think the adapter is acting as a converter but rather a passthrough of DSC-compressed signal. Otherwise it wouldn’t be able to obtain 8k @ 60hz, as tha…
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Replied to CAC-1085 allow 4k@120hz with 4:4:4 ?
The concept of using dithering to convert an 8-bit signal to something that looks like 10-bit is interesting. However, I don't think 8-bit + dithering is imple…