[Bug 98897] Macbook pro 11,5 screen flicker when AC adapter plugged in

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Apr 2 13:07:39 UTC 2017


--- Comment #25 from extr15 <extr15 at 126.com> ---
(In reply to berg from comment #20)
> Created attachment 128481 [details] [review]
> Setting correct core and memory clock for M370X in MBP 11,5
> No screen flickering after testing out this patch I made on the v4.9 branch.
> I confirmed the GPU configuration on this page
> https://en.wikipedia.org/wiki/AMD_Radeon_Rx_300_series. Set mclk and sclk
> accordingly; assuming that mclk is for memory and sclk is for the GPU clock.
> Noticeably everything is running very nicely. No strange behaviour so far
> and both GPU and CPU temps are OK.
> In addition. My CPU turbo boost is also working, which it previously wasn't
> on 3.8.6. Test at your own risk.

hi berg, thanks for your attachment.
I am new to linux kernel, and I don't how to apply your attachment, i.e. how to
compile a single radeon.ko ?
I find a radeon.ko under
"/lib/modules/4.8.0-36-generic/kernel/drivers/gpu/drm/radeon", so I want to
compile it, likes here: 

I modify si_dpm.c and write a Makefile:
obj-m += si_dpm.o

  make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

  make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

but when make I get:
/si_dpm.c:24:18: fatal error: drmP.h: No such file or directory
compilation terminated.

so could you tell me how to compile a single .ko or if any tutorial I can
follow, or I have to compile all the kernel?


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