* [Bug 37112] GPU lockup when trying to use profile based frequency switching
[not found] <bug-37112-2300@https.bugzilla.kernel.org/>
@ 2011-06-10 17:41 ` bugzilla-daemon
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From: bugzilla-daemon @ 2011-06-10 17:41 UTC (permalink / raw)
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
Rafael J. Wysocki <rjw@sisk.pl> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rjw@sisk.pl
Component|Other |Video(DRI - non Intel)
AssignedTo|power-management_other@kern |drivers_video-dri@kernel-bu
|el-bugs.osdl.org |gs.osdl.org
Product|Power Management |Drivers
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^ permalink raw reply [flat|nested] 11+ messages in thread* [Bug 37112] GPU lockup when trying to use profile based frequency switching
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2011-06-10 17:41 ` [Bug 37112] GPU lockup when trying to use profile based frequency switching bugzilla-daemon
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From: bugzilla-daemon @ 2011-06-11 6:45 UTC (permalink / raw)
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
--- Comment #5 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2011-06-11 06:45:28 ---
My first guess is , that kernel changes memory clock too low - with fglrx
lowest memory clock is at 400MHz , but with radeon module/low frequency it
changes it to 300MHz.
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From: bugzilla-daemon @ 2011-06-11 7:36 UTC (permalink / raw)
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
Rafał Miłecki <zajec5@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |zajec5@gmail.com
--- Comment #6 from Rafał Miłecki <zajec5@gmail.com> 2011-06-11 07:36:36 ---
(In reply to comment #5)
> My first guess is , that kernel changes memory clock too low - with fglrx
> lowest memory clock is at 400MHz , but with radeon module/low frequency it
> changes it to 300MHz.
Please, edit drivers/gpu/drm/radeon/radeon_pm.c, find:
> if (rdev->asic->set_memory_clock && (mclk != rdev->pm.current_mclk)) {
and make it
> if (0) {
Does it help?
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
--- Comment #7 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2011-06-11 15:29:50 ---
Yes it helps! :)
Using default profile:
default engine clock: 600000 kHz
current engine clock: 594000 kHz
default memory clock: 500000 kHz
current memory clock: 495000 kHz
voltage: 1100 mV
PCIE lanes: 16
using low:
default engine clock: 600000 kHz
current engine clock: 109680 kHz
default memory clock: 500000 kHz
current memory clock: 495000 kHz
voltage: 900 mV
PCIE lanes: 16
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--- Comment #8 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2011-06-11 15:38:06 ---
I forgot to say 2 things: a)i tried your suggestion with 3.0.0-rc2 ,b) NO
lockups :)
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
--- Comment #9 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2012-06-05 06:33:47 ---
(In reply to comment #6)
> (In reply to comment #5)
> > My first guess is , that kernel changes memory clock too low - with fglrx
> > lowest memory clock is at 400MHz , but with radeon module/low frequency it
> > changes it to 300MHz.
>
> Please, edit drivers/gpu/drm/radeon/radeon_pm.c, find:
> > if (rdev->asic->set_memory_clock && (mclk != rdev->pm.current_mclk)) {
> and make it
> > if (0) {
>
> Does it help?
@Rafał
Any progress on this bug?
It's a reall pain to recompile kerenels without powersaving :(
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--- Comment #10 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2012-08-27 23:19:31 ---
Just tried 3.6 rc2.
No lockups/hangs! There can be a screen flickering (mostly visible while
scrolling), but now dynpm works correctly:
cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 600000 kHz
current engine clock: 297000 kHz
default memory clock: 500000 kHz
current memory clock: 396000 kHz
voltage: 900 mV
PCIE lanes: 16
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--- Comment #11 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2012-08-28 02:22:19 ---
Still locks up with low profile.
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From: bugzilla-daemon @ 2013-03-15 12:33 UTC (permalink / raw)
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https://bugzilla.kernel.org/show_bug.cgi?id=37112
Hrvoje Senjan <hrvoje.senjan@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Kernel Version|2.35-2.6.39 |2.35-3.9-rc2
Severity|normal |high
--- Comment #12 from Hrvoje Senjan <hrvoje.senjan@gmail.com> 2013-03-15 12:33:54 ---
Would really appreciate for some further info, the situation is the same with
low and mid methods, it tries to change the memory clock too low.
Thanks
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From: bugzilla-daemon @ 2013-12-23 13:46 UTC (permalink / raw)
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Alan <alan@lxorguk.ukuu.org.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |alan@lxorguk.ukuu.org.uk
Kernel Version|2.35-3.9-rc2 |3.9-rc2
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Alex Deucher <alexdeucher@gmail.com> changed:
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----------------------------------------------------------------------------
CC| |alexdeucher@gmail.com
--- Comment #13 from Alex Deucher <alexdeucher@gmail.com> ---
You should try the new dpm support in kernel 3.11 or newer. Boot with
radeon.dpm=1 on the kernel command line in grub. I don't plan to put any more
work into the old pm code.
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