https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #9 from Matthew Trescott (matthewtresc...@gmail.com) ---
There is something else strange here. Even if I run the command I mentioned
above, xrandr --verbose always says that output eDP-1 is using CRTC 0. It never
changes, even though
https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #8 from Matthew Trescott (matthewtresc...@gmail.com) ---
I compiled and installed Linux 4.8 using the Arch Linux scripts. It seemed to
have no effect on this bug.
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https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #7 from Matthew Trescott (matthewtresc...@gmail.com) ---
I should note that that xrandr command, if run while the display is on, will
turn it off. It seems to act as a sort of toggle.
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https://bugzilla.kernel.org/show_bug.cgi?id=199621
Matthew Trescott (matthewtresc...@gmail.com) changed:
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https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #5 from Florian Echtler (f...@butterbrot.org) ---
I know how it's supposed to work in theory, I'll give it a try. Do you know if
there's a kernel repository that also carries the Ubuntu patches?
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Alex Deucher (alexdeuc...@gmail.com) changed:
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https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #3 from Florian Echtler (f...@butterbrot.org) ---
One more update, sorry for the noise: I've been digging through the old Ubuntu
kernel release schedules, and I'm pretty sure that the display worked with 4.8,
but started turning blank
https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #2 from Florian Echtler (f...@butterbrot.org) ---
Side note two: this is the 27" 2009 iMac model, the exact video card is:
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
RV730/M96-XT [Mobility Radeon HD
https://bugzilla.kernel.org/show_bug.cgi?id=199621
--- Comment #1 from Florian Echtler (f...@butterbrot.org) ---
Side note: this bug has been persisting since at least 4.11, I think the last
time it worked was somewhere around kernel 4.8.
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