https://bugs.freedesktop.org/show_bug.cgi?id=76490
Benjamin Bellec b.bellec@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|FIXED |--- Status|RESOLVED |REOPENED
--- Comment #108 from Benjamin Bellec b.bellec@gmail.com --- (In reply to Michael Rosile from comment #107)
Thank you Alex Deucher! I have the same graphics card as samdenies (XFX R9 270X), and was looking through various mailing lists to find an answer (I wasn't expecting to find an answer at bugs.freedesktop.org). I knew the issue was related to the memory clock speed, but didn't know how to change it in Linux, until now.
I manually added the required 'quirk' line to a custom 4.5.2 kernel, and it's working great!
This is not fixed at all: - there is probably several other videocards from other vendors which don't works (the Gigabyte "GV-R737WF2OC-2GD" for instance) - the quirk added underclocks the mclock from 5600 MHz to 4800 MHz, so you don't get the full performance you are expecting