Comment # 14
on bug 102820
from dwagner
(In reply to Alex Deucher from comment #13) > It's pretty vague unfortunately regarding HDMI: > It does not explicitly say 4K@60 on HDMI. The high refresh rates may only > be available on DP. Well then, if you suspect XFX to be sneaky bitches, I should refer you to the page of the actual reseller that I bought my XFX RX 460 from: https://www.caseking.de/en/xfx-radeon-rx-460-passive-heatsink-edition-2048-mb-gddr5-gcxf-148.html which clearly states: "The 2.0b HDMI port carries a 4K/UHD resolution signal at 60 Hz and permits the sending and receiving of encrypted signals using the HDCP 2.2 protocol (4K streaming, 4K Blu-Rays)." And that corresponds well to the many reports of Windows users you find on the Internet that confirm XFX RX460 cards do in fact drive HDMI displays at 4k 60Hz also under Windows - or should we assume the Windows drivers to be broken and all those users just being "lucky"? > HDMI 2.0b does not imply 4K@60. Support of 4k @ 60Hz was the first and foremost feature advertised by the HDMI licensors as being the main reason for introducing HDMI 2.0! - Here's their press release from back then: https://www.hdmi.org/press/press_release.aspx?prid=133 and a clear statement on HDMI 2.0b supporting 4k@60Hz: https://www.hdmi.org/manufacturer/hdmi_2_0/index.aspx > Your board may work, but others might not depending on the board, cable, > monitor, etc. Yes, the GPU board cannot guarantee anything with regards to cabling or monitors - but how is that a reason for a driver software to keep users from even trying to use this fundamentally important, reseller-promised, broadly-reported-to-be-working-under-Windows feature? Should audio drivers discard LFE channels because some sound card vendor cannot validate that the user connected a capable sub-woofer to his amplifier...?
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