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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Linux Driver support for 8k (lemmy.ml)

submitted 5 days ago by etbe@lemmy.ml to c/linux@lemmy.ml

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Are there any issues with driver support for 8k that will affect purchase choice?

I recently bought an 8k TV (which is not brutally expensive when refurbished) and want to connect my workstation to it. I went through the list of video cards from my local store and the cheapest that claims 8k support is the Gigabyte RX 6400.

Is a Gigabyte RX 6400 Eagle 4G a good video card for mostly text output at 8k resolution? I might do things like play Netflix in 1/4 of the screen and have text in the other 3/4. Definitely nothing at all challenging in terms of video. AMD drivers have a history of being reliable, but will I face some issues like lack of HDMI support for 8k?

I've watched a YouTube video about trying this on Windows and they got frame rates as low as 4 FPS for games which is not a concern for me. It definitely works OK with Windows driving the card. Will I be likely to have issues running the same hardware on Linux?

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[–] jrgd@lemm.ee 22 points 5 days ago* (last edited 5 days ago) (11 children)

You will need either an Intel discrete GPU or NVidia GPU if you want to use HDMI 2.1 to render at 8k@60. The Intel discrete GPUs have physical hardware that convert to HDMI and Nvidia uses proprietary drivers. If you can use displayport, any GPU (AMD, Intel, Nvidia) supporting displayport 1.4 is suitable for up to 8k@31 (limited to 8bpc). A displayport 2.0-capable card with a cable suitable for UHBR 13.5 should be able to handle 60 hz (8bpc) or a UHBR 20-rated cable capable of 60 hz at 10bpc.

[–] etbe@lemmy.ml 2 points 5 days ago (1 children)

That card has DisplayPort 1.4 which means that if HDMI doesn't work then it's limited to HBR3 which gives 24bpp@31Hz, which is barely adequate.

Also how do you set the bpp rates? The DisplayPort wikipedia page says that 24bpp and 30bpp are supported, but how do I even know which is in use?

[–] jrgd@lemm.ee 3 points 5 days ago* (last edited 5 days ago)

Ah yes, did mess up looking at the specs table for bitrate modes. Correcting root comment for anyone else who views this thread.

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