[Nouveau] Bug or not?

Evan Foss evanfoss at gmail.com
Wed Mar 11 22:47:50 PDT 2015


Hi Pierre,

No worries about the response time. I remember when the features
matrix was mostly todo's. Clearly you folks have put in a ton of work.
I would feel bad about trying to shove a developer into my problem and
I do not have the time right now to join the development team. Besides
my day job I am currently writing a library to interpret BSDL files
(JTAG).

I am having a bit of trouble with acpidump which is telling me there
is no -n option. The acpidump I am running is from a package called
pmtools. Is that the correct thing? I am in gentoo and used the
following ebuild to do the install.

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-power/pmtools/pmtools-20110323-r1.ebuild?view=markup
which pulls this source
https://github.com/anyc/pmtools/

I see your point about using the intel instead of the nVidia GPU.

Many thanks for your help,
-Evan

On Wed, Mar 11, 2015 at 3:52 PM, Pierre Moreau <pierre.morrow at free.fr> wrote:
> Hi Evan!
>
> Sorry for taking so long before answering...
> Thanks for the greps! It appears you have a newer version of apple_gmux than I have, so let's see if something also changed in the _DSM method. Could you please run - as root - `acpidump -b -n DSDT` which will create a file named dsdt.dat containing the DSDT table, and then run `iasl -d dsdt.dat` and send me the resulting dsdt.dsl file?
> That way I will have the uuid, the available functions and their version for your _DSM method.
>
> Regarding bringing the clocks down, you could add a fake performance level in the vbios but I'm not sure if it would be a good move. You should rather power off the NVidia card and only use the Intel one - using vgaswitcheroo, see [1]; once I have that dsdt.dsl file, I should be able to add support for auto-powering down the NVidia card. Or you could try to motivate some developers - or if you want to give it a try - to investigate / add support for power and/or clock gating.
>
> Regards,
>
> Pierre
>
> [1]: http://nouveau.freedesktop.org/wiki/Optimus/#checkingthecurrentpowerstate
>
>
> ----- Mail original -----
>> The first grep of dmesg is for the apple info so you know exactly
>> what
>> box I have. The second is to show that I am booting in EFI mode and
>> not some bogus bios compatibility thing. The third is to show the
>> gmux
>> version. The fourth is to answer the question you actually asked.
>>
>> $ cat /proc/version
>> Linux version 3.19.0 (root at turingatlarge) (gcc version 4.7.3 (Gentoo
>> 4.7.3-r1 p1.4, pie-0.5.5) ) #3 SMP Sun Feb 15 01:09:59 EST 2015
>>
>> ------ $ dmesg|grep Apple
>> [    0.000000] efi: EFI v1.10 by Apple
>> [    0.000000] DMI: Apple Inc. MacBookPro9,1/Mac-4B7AC7E43945597E,
>> BIOS MBP91.88Z.00D3.B08.1208081132 08/08/2012
>> [    0.000000] ACPI: XSDT 0x000000008CD8E1C0 0000B4 (v01 APPLE
>> Apple00  00000000      01000013)
>> [    0.000000] ACPI: FACP 0x000000008CD8C000 0000F4 (v04 APPLE
>> Apple00  00000000 Loki 0000005F)
>> [    0.000000] ACPI: HPET 0x000000008CD8B000 000038 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: APIC 0x000000008CD8A000 0000BC (v02 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: SBST 0x000000008CD88000 000030 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: ECDT 0x000000008CD87000 000053 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: MCFG 0x000000008CD89000 00003C (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    3.091740] usb 3-1.1: Manufacturer: Apple Inc.
>> [    3.410516] usb 4-1.8.1: Manufacturer: Apple Inc.
>> [    3.581141] usb 4-1.8.2: Manufacturer: Apple Computer, Inc.
>> [    3.777265] usb 4-1.8.3: Product: Apple Internal Keyboard /
>> Trackpad
>> [    3.777267] usb 4-1.8.3: Manufacturer: Apple Inc.
>> [    3.782615] input: Apple Inc. Apple Internal Keyboard / Trackpad
>> as
>> /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.3/4-1.8.3:1.0/0003:05AC:0252.0002/input/input13
>> [    3.833440] apple 0003:05AC:0252.0002: input,hidraw0: USB HID
>> v1.11
>> Keyboard [Apple Inc. Apple Internal Keyboard / Trackpad] on
>> usb-0000:00:1d.0-1.8.3/input0
>> [    4.091248] apple 0003:05AC:0252.0003: hidraw2: USB HID v1.11
>> Device [Apple Inc. Apple Internal Keyboard / Trackpad] on
>> usb-0000:00:1d.0-1.8.3/input1
>> [    4.319509] usb 4-1.8.1.3: Manufacturer: Apple Inc.
>> [    4.457798] input: Apple Computer, Inc. IR Receiver as
>> /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.2/4-1.8.2:1.0/0003:05AC:8242.0001/input/input18
>> [    4.509982] appleir 0003:05AC:8242.0001: input,hiddev0,hidraw4:
>> USB
>> HID v1.11 Device [Apple Computer, Inc. IR Receiver] on
>> usb-0000:00:1d.0-1.8.2/input0
>>
>> ------ $ dmesg|grep EFI
>> [    0.000000] efi: EFI v1.10 by Apple
>> [    1.220269] fb0: EFI VGA frame buffer device
>> [    2.619144] EFI Variables Facility v0.08 2004-May-17
>> [    4.205767] fb: switching to nouveaufb from EFI VGA
>>
>> ------ $ dmesg|grep gmux
>> [    2.739845] apple_gmux: Found gmux version 1.9.35 [classic]
>> [ 4299.386843] apple-gmux 00:03: System wakeup disabled by ACPI
>>
>> ------ ~/Documents $ dmesg|grep DSM
>> [    4.205710] ACPI Warning: \_SB_.PCI0.IGPU._DSM: Argument #4 type
>> mismatch - Found [Buffer], ACPI requires [Package]
>> (20141107/nsarguments-95)
>> [    4.205724] ACPI: \_SB_.PCI0.IGPU: failed to evaluate _DSM
>> [    4.205739] ACPI Warning: \_SB_.PCI0.P0P2.GFX0._DSM: Argument #4
>> type mismatch - Found [Buffer], ACPI requires [Package]
>> (20141107/nsarguments-95)
>> [    4.205749] ACPI: \_SB_.PCI0.P0P2.GFX0: failed to evaluate _DSM
>>
>> On Sun, Feb 15, 2015 at 5:13 AM, Pierre Moreau
>> <pierre.morrow at free.fr> wrote:
>> > Does the Nvidia card auto-suspends or do you have to force it? If
>> > not, does
>> > it report some “failed to parse _DSM” message?
>> > I have a mid 2009 MBP who uses a different _DSM handles than the
>> > ones
>> > Nouveau currently supports, and I wondered if they were related to
>> > the Apple
>> > Gmux or not. So, as you have a different model with a different
>> > Nvidia card
>> > but still with an Apple Gmux, I’d be interested to know if you have
>> > the same
>> > _DSM handles as I have.
>> >
>> > Pierre
>> >
>> > On 15 Feb 2015, at 06:44, Evan Foss <evanfoss at gmail.com> wrote:
>> >
>> > Thanks again.
>> >
>> > This works and the heat has dropped substantially. It is still not
>> > as
>> > cool as I would like but this will do for now. I still need to file
>> > a
>> > bug report with the intel / apple gmux people.
>> >
>> > -Evan
>> >
>> > On Sat, Feb 14, 2015 at 10:42 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > On the older kernel
>> >
>> > [    6.494956] nouveau  [     CLK][0000:01:00.0] 07: core 270-405
>> > MHz
>> > memory 838 MHz
>> > [    6.494989] nouveau  [     CLK][0000:01:00.0] 0a: core 270-774
>> > MHz
>> > memory 1560 MHz
>> > [    6.495015] nouveau  [     CLK][0000:01:00.0] 0e: core 270-774
>> > MHz
>> > memory 4000 MHz
>> > [    6.495182] nouveau  [     CLK][0000:01:00.0] --: core 405 MHz
>> > memory 680
>> > MHz
>> >
>> > On Sat, Feb 14, 2015 at 10:35 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > Because I am on a macbook the VBIOS might be wonky.
>> >
>> > I tried turning off nVidia and using intel. The result was a blank
>> > screen. I know other people had the same bug which was something to
>> > do
>> > with reprobing lvds?! I saw patches go by and every time I tried
>> > one
>> > the results were the same. fail. I was actually about to post a bug
>> > report to the intel (i915) people about it.
>> >
>> > I tried to work out how to get optimus to work. After trying
>> > several
>> > different sets of instructions I never found a working
>> > configuration
>> > and put it aside. I never used to use opengl but lately my pcb
>> > software has adopted it so my needs changed.
>> >
>> > I will get back to you with more results on this matter after I get
>> > the newer kernel up.
>> >
>> >
>> > On Sat, Feb 14, 2015 at 10:09 PM, Ilia Mirkin
>> > <imirkin at alum.mit.edu> wrote:
>> >
>> > On Sat, Feb 14, 2015 at 9:56 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > I have a side question which may be the subject of a future second
>> > bug
>> > report. I have been lurking on the nouveau mailing list for some
>> > time.
>> > I understand from various posts that the nvidia gpu clock speed
>> > right
>> > now is set to the lowest possible setting. Why does my machine run
>> > so
>> >
>> >
>> > Often but not always the case -- the clock speed is whatever the
>> > VBIOS
>> > leaves it in. For kepler, that is usually the lowest setting.
>> >
>> > much hotter in linux than macos? I turned off the intel graphics
>> > and
>> > the cpu clock is set to the lowest available speed.
>> >
>> >
>> > You should instead turn off the nvidia graphics and run off intel
>> > --
>> > intel is much less power-hungry than nvidia, even at the lowest
>> > clocks. If it's an optimus setup, the nvidia gpu should
>> > automatically
>> > power off until needed (either because some display is connected to
>> > it, or for offloading).
>> >
>> >
>> > How do I get a display of the GPU clocking speeds?
>> >
>> >
>> > You should see it in dmesg... look for CLK lines. The ones with --
>> > (or
>> > AC/DC) will show the current setting. Or boot with nouveau.pstate=1
>> > and you should have a /sys/class/drm/card*/device/pstate file.
>> >
>> >  -ilia
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> > _______________________________________________
>> > Nouveau mailing list
>> > Nouveau at lists.freedesktop.org
>> > http://lists.freedesktop.org/mailman/listinfo/nouveau
>> >
>> >
>>
>>
>>
>> --
>> Home
>> http://evanfoss.googlepages.com/
>> Work
>> http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>>



-- 
Home
http://evanfoss.googlepages.com/
Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

On Wed, Mar 11, 2015 at 2:52 PM, Pierre Moreau <pierre.morrow at free.fr> wrote:
> Hi Evan!
>
> Sorry for taking so long before answering...
> Thanks for the greps! It appears you have a newer version of apple_gmux than I have, so let's see if something also changed in the _DSM method. Could you please run - as root - `acpidump -b -n DSDT` which will create a file named dsdt.dat containing the DSDT table, and then run `iasl -d dsdt.dat` and send me the resulting dsdt.dsl file?
> That way I will have the uuid, the available functions and their version for your _DSM method.
>
> Regarding bringing the clocks down, you could add a fake performance level in the vbios but I'm not sure if it would be a good move. You should rather power off the NVidia card and only use the Intel one - using vgaswitcheroo, see [1]; once I have that dsdt.dsl file, I should be able to add support for auto-powering down the NVidia card. Or you could try to motivate some developers - or if you want to give it a try - to investigate / add support for power and/or clock gating.
>
> Regards,
>
> Pierre
>
> [1]: http://nouveau.freedesktop.org/wiki/Optimus/#checkingthecurrentpowerstate
>
>
> ----- Mail original -----
>> The first grep of dmesg is for the apple info so you know exactly
>> what
>> box I have. The second is to show that I am booting in EFI mode and
>> not some bogus bios compatibility thing. The third is to show the
>> gmux
>> version. The fourth is to answer the question you actually asked.
>>
>> $ cat /proc/version
>> Linux version 3.19.0 (root at turingatlarge) (gcc version 4.7.3 (Gentoo
>> 4.7.3-r1 p1.4, pie-0.5.5) ) #3 SMP Sun Feb 15 01:09:59 EST 2015
>>
>> ------ $ dmesg|grep Apple
>> [    0.000000] efi: EFI v1.10 by Apple
>> [    0.000000] DMI: Apple Inc. MacBookPro9,1/Mac-4B7AC7E43945597E,
>> BIOS MBP91.88Z.00D3.B08.1208081132 08/08/2012
>> [    0.000000] ACPI: XSDT 0x000000008CD8E1C0 0000B4 (v01 APPLE
>> Apple00  00000000      01000013)
>> [    0.000000] ACPI: FACP 0x000000008CD8C000 0000F4 (v04 APPLE
>> Apple00  00000000 Loki 0000005F)
>> [    0.000000] ACPI: HPET 0x000000008CD8B000 000038 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: APIC 0x000000008CD8A000 0000BC (v02 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: SBST 0x000000008CD88000 000030 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: ECDT 0x000000008CD87000 000053 (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    0.000000] ACPI: MCFG 0x000000008CD89000 00003C (v01 APPLE
>> Apple00  00000001 Loki 0000005F)
>> [    3.091740] usb 3-1.1: Manufacturer: Apple Inc.
>> [    3.410516] usb 4-1.8.1: Manufacturer: Apple Inc.
>> [    3.581141] usb 4-1.8.2: Manufacturer: Apple Computer, Inc.
>> [    3.777265] usb 4-1.8.3: Product: Apple Internal Keyboard /
>> Trackpad
>> [    3.777267] usb 4-1.8.3: Manufacturer: Apple Inc.
>> [    3.782615] input: Apple Inc. Apple Internal Keyboard / Trackpad
>> as
>> /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.3/4-1.8.3:1.0/0003:05AC:0252.0002/input/input13
>> [    3.833440] apple 0003:05AC:0252.0002: input,hidraw0: USB HID
>> v1.11
>> Keyboard [Apple Inc. Apple Internal Keyboard / Trackpad] on
>> usb-0000:00:1d.0-1.8.3/input0
>> [    4.091248] apple 0003:05AC:0252.0003: hidraw2: USB HID v1.11
>> Device [Apple Inc. Apple Internal Keyboard / Trackpad] on
>> usb-0000:00:1d.0-1.8.3/input1
>> [    4.319509] usb 4-1.8.1.3: Manufacturer: Apple Inc.
>> [    4.457798] input: Apple Computer, Inc. IR Receiver as
>> /devices/pci0000:00/0000:00:1d.0/usb4/4-1/4-1.8/4-1.8.2/4-1.8.2:1.0/0003:05AC:8242.0001/input/input18
>> [    4.509982] appleir 0003:05AC:8242.0001: input,hiddev0,hidraw4:
>> USB
>> HID v1.11 Device [Apple Computer, Inc. IR Receiver] on
>> usb-0000:00:1d.0-1.8.2/input0
>>
>> ------ $ dmesg|grep EFI
>> [    0.000000] efi: EFI v1.10 by Apple
>> [    1.220269] fb0: EFI VGA frame buffer device
>> [    2.619144] EFI Variables Facility v0.08 2004-May-17
>> [    4.205767] fb: switching to nouveaufb from EFI VGA
>>
>> ------ $ dmesg|grep gmux
>> [    2.739845] apple_gmux: Found gmux version 1.9.35 [classic]
>> [ 4299.386843] apple-gmux 00:03: System wakeup disabled by ACPI
>>
>> ------ ~/Documents $ dmesg|grep DSM
>> [    4.205710] ACPI Warning: \_SB_.PCI0.IGPU._DSM: Argument #4 type
>> mismatch - Found [Buffer], ACPI requires [Package]
>> (20141107/nsarguments-95)
>> [    4.205724] ACPI: \_SB_.PCI0.IGPU: failed to evaluate _DSM
>> [    4.205739] ACPI Warning: \_SB_.PCI0.P0P2.GFX0._DSM: Argument #4
>> type mismatch - Found [Buffer], ACPI requires [Package]
>> (20141107/nsarguments-95)
>> [    4.205749] ACPI: \_SB_.PCI0.P0P2.GFX0: failed to evaluate _DSM
>>
>> On Sun, Feb 15, 2015 at 5:13 AM, Pierre Moreau
>> <pierre.morrow at free.fr> wrote:
>> > Does the Nvidia card auto-suspends or do you have to force it? If
>> > not, does
>> > it report some “failed to parse _DSM” message?
>> > I have a mid 2009 MBP who uses a different _DSM handles than the
>> > ones
>> > Nouveau currently supports, and I wondered if they were related to
>> > the Apple
>> > Gmux or not. So, as you have a different model with a different
>> > Nvidia card
>> > but still with an Apple Gmux, I’d be interested to know if you have
>> > the same
>> > _DSM handles as I have.
>> >
>> > Pierre
>> >
>> > On 15 Feb 2015, at 06:44, Evan Foss <evanfoss at gmail.com> wrote:
>> >
>> > Thanks again.
>> >
>> > This works and the heat has dropped substantially. It is still not
>> > as
>> > cool as I would like but this will do for now. I still need to file
>> > a
>> > bug report with the intel / apple gmux people.
>> >
>> > -Evan
>> >
>> > On Sat, Feb 14, 2015 at 10:42 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > On the older kernel
>> >
>> > [    6.494956] nouveau  [     CLK][0000:01:00.0] 07: core 270-405
>> > MHz
>> > memory 838 MHz
>> > [    6.494989] nouveau  [     CLK][0000:01:00.0] 0a: core 270-774
>> > MHz
>> > memory 1560 MHz
>> > [    6.495015] nouveau  [     CLK][0000:01:00.0] 0e: core 270-774
>> > MHz
>> > memory 4000 MHz
>> > [    6.495182] nouveau  [     CLK][0000:01:00.0] --: core 405 MHz
>> > memory 680
>> > MHz
>> >
>> > On Sat, Feb 14, 2015 at 10:35 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > Because I am on a macbook the VBIOS might be wonky.
>> >
>> > I tried turning off nVidia and using intel. The result was a blank
>> > screen. I know other people had the same bug which was something to
>> > do
>> > with reprobing lvds?! I saw patches go by and every time I tried
>> > one
>> > the results were the same. fail. I was actually about to post a bug
>> > report to the intel (i915) people about it.
>> >
>> > I tried to work out how to get optimus to work. After trying
>> > several
>> > different sets of instructions I never found a working
>> > configuration
>> > and put it aside. I never used to use opengl but lately my pcb
>> > software has adopted it so my needs changed.
>> >
>> > I will get back to you with more results on this matter after I get
>> > the newer kernel up.
>> >
>> >
>> > On Sat, Feb 14, 2015 at 10:09 PM, Ilia Mirkin
>> > <imirkin at alum.mit.edu> wrote:
>> >
>> > On Sat, Feb 14, 2015 at 9:56 PM, Evan Foss <evanfoss at gmail.com>
>> > wrote:
>> >
>> > I have a side question which may be the subject of a future second
>> > bug
>> > report. I have been lurking on the nouveau mailing list for some
>> > time.
>> > I understand from various posts that the nvidia gpu clock speed
>> > right
>> > now is set to the lowest possible setting. Why does my machine run
>> > so
>> >
>> >
>> > Often but not always the case -- the clock speed is whatever the
>> > VBIOS
>> > leaves it in. For kepler, that is usually the lowest setting.
>> >
>> > much hotter in linux than macos? I turned off the intel graphics
>> > and
>> > the cpu clock is set to the lowest available speed.
>> >
>> >
>> > You should instead turn off the nvidia graphics and run off intel
>> > --
>> > intel is much less power-hungry than nvidia, even at the lowest
>> > clocks. If it's an optimus setup, the nvidia gpu should
>> > automatically
>> > power off until needed (either because some display is connected to
>> > it, or for offloading).
>> >
>> >
>> > How do I get a display of the GPU clocking speeds?
>> >
>> >
>> > You should see it in dmesg... look for CLK lines. The ones with --
>> > (or
>> > AC/DC) will show the current setting. Or boot with nouveau.pstate=1
>> > and you should have a /sys/class/drm/card*/device/pstate file.
>> >
>> >  -ilia
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> >
>> >
>> >
>> >
>> > --
>> > Home
>> > http://evanfoss.googlepages.com/
>> > Work
>> > http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>> > _______________________________________________
>> > Nouveau mailing list
>> > Nouveau at lists.freedesktop.org
>> > http://lists.freedesktop.org/mailman/listinfo/nouveau
>> >
>> >
>>
>>
>>
>> --
>> Home
>> http://evanfoss.googlepages.com/
>> Work
>> http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/
>>



-- 
Home
http://evanfoss.googlepages.com/
Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/


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