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Message #50611
[Bug 1295032] Re: 3840x2160 fails with 30Hz with HDMI
** Tags added: trusty
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https://bugs.launchpad.net/bugs/1295032
Title:
3840x2160 fails with 30Hz with HDMI
Status in “linux” package in Ubuntu:
Triaged
Bug description:
The radeon graphics card driver assumes any pixel clock speed over
165000 should be using Dual-Link DVI, although the speeds are possible
over HDMI as of HDMI 1.3.
The fix, as well as a link to a more detailed bug report, can be found here:
https://github.com/torvalds/linux/commit/d03874c881a049a50e12f285077ab1f9fc2686e1
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References