[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #13 from Gustavo Lopes  ---
Created attachment 99000
  --> https://bugs.freedesktop.org/attachment.cgi?id=99000=edit
kernel log dpm on plus disabling patch

By statically compiling netconsole and the nic driver and having radeon as
module, I was able to get a kernel log. This is full log, I get nothing after
this.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #12 from Gustavo Lopes  ---
I tried sprinkling si_dpm_ini() and si_dpm_enabled with printk and msleep
statements, but while I can tell they're being executed (it takes much longer
for the screen to become black due to the sleeps), I cannot see any log
messages. The last lines I see are:

[drm] radeon kernel modesetting enabled.
fb: switching to radeondrmfb from EFI VGA

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #11 from Gustavo Lopes  ---
It doesn't seem to help, no.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #10 from Alex Deucher  ---
Created attachment 98997
  --> https://bugs.freedesktop.org/attachment.cgi?id=98997=edit
disable some dpm features

Does this patch help?  If so, can you narrow down which setting(s) are the
problematic one(s)?

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #9 from Gustavo Lopes  ---
Oh and I made sure the initramfs had the module and the firmware. For reference
the xz cpio image is here:
https://s3-eu-west-1.amazonaws.com/artefacto-test/initramfs-linux-mainline.img

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #8 from Gustavo Lopes  ---
Created attachment 98989
  --> https://bugs.freedesktop.org/attachment.cgi?id=98989=edit
kernel log with dpm=0 on 3.15-rc5

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[Bug 76490] No output after radeon module is loaded (R9 270X)

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #7 from Gustavo Lopes  ---
I installed it now, but still no luck.

glopes ~ $ ls -l /lib/firmware/radeon/PITCAIRN_mc*
-rw-r--r-- 1 root root 31100 Mai 13 18:58 /lib/firmware/radeon/PITCAIRN_mc2.bin
-rw-r--r-- 1 root root 31076 Mar 23 02:02 /lib/firmware/radeon/PITCAIRN_mc.bin

When I run with radeon.dpm=0, it seems to load the correct file:

[0.630585] [drm] radeon: 4096M of VRAM memory ready
[0.630586] [drm] radeon: 1024M of GTT memory ready.
[0.630593] [drm] Loading PITCAIRN Microcode
[0.630632] [drm] radeon/PITCAIRN_mc2.bin: 31100 bytes
[0.630644] [drm] Internal thermal controller with fan control
[0.630673] [drm] radeon: power management initialized

I'm attaching the full log as well.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #6 from Alex Deucher  ---
Have you installed the latest mc ucode for pitcarin?
http://people.freedesktop.org/~agd5f/radeon_ucode/PITCAIRN_mc2.bin
make sure that is installed and available in your initrd if you are using one.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #5 from Gustavo Lopes  ---
Same problem in 3.15-rc5.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #4 from Gustavo Lopes  ---
No, it still stalls.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #3 from Alex Deucher  ---
Does booting with radeon.runpm=0 on the kernel command line in grub also help?

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #2 from Gustavo Lopes  ---
Things seem to work fine with radeon.dpm=0.

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[Bug 76490] No output after radeon module is loaded (R9 270X)

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https://bugs.freedesktop.org/show_bug.cgi?id=76490

--- Comment #1 from Gustavo Lopes  ---
When it hangs (which always happen if I don't have X already started), I
sometimes get a bunch vertical white and black stripes. dmesg doesn't show
anything interesting, just

[  278.575937] fbcon: radeondrmfb (fb0) is primary device
[  278.590490] Console: switching to colour frame buffer device 240x67
[  278.602467] radeon :01:00.0: fb0: radeondrmfb frame buffer device
[  278.602531] radeon :01:00.0: registered panic notifier
[  278.606539] [drm] Initialized radeon 2.37.0 20080528 for :01:00.0 on
minor 0

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