[Bug 220926] New: HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

[Bug 220926] New: HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=220926

            Bug ID: 220926
           Summary: HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile
                    fails to read/write
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Platform_x86
          Assignee: drivers_platform_x86@kernel-bugs.osdl.org
          Reporter: andreslopez.23061@gmail.com
        Regression: No

Platform profile interface exposed but non-functional on HP ENVY Laptop
16-h1xxx.

System Info:
- Model: HP ENVY Laptop 16-h1xxx
- Board: 8BE5
- Kernel: 6.18.2-2-cachyos
- Distro: CachyOS

Problem:
Writing to /sys/firmware/acpi/platform_profile appears to succeed but reading
always fails:
$ cat /sys/firmware/acpi/platform_profile
cat: /sys/firmware/acpi/platform_profile: Invalid argument

$ cat /sys/firmware/acpi/platform_profile_choices
cool quiet balanced performance

dmesg shows:
hp_wmi: Unknown event_id - 131073 - 0x0
platform_profile: Failed to get profile for handler hp-wmi

Fan control is not possible through any method (hp_wmi or direct EC writes).

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[Bug 220926] HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

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Gibs (gibs23@proton.me) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |gibs23@proton.me

--- Comment #1 from Gibs (gibs23@proton.me) ---
I have the same problem on same platform on kernel 7.1.8.
Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.

Package power also seems to max at 40W no matter the profile. On Windows I have
peaks of 115W and then drops at 55W after a short while.

I also tried mapping my board ID to Omen or Victus configs but doesn't work,
the ENVY seems to be different.

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[Bug 220926] HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

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Suryansh Singh (technosfan14@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |technosfan14@gmail.com

--- Comment #2 from Suryansh Singh (technosfan14@gmail.com) ---
(In reply to Gibs from comment #1)
> I have the same problem on same platform on kernel 7.1.8.
> Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.
> 
> Package power also seems to max at 40W no matter the profile. On Windows I
> have peaks of 115W and then drops at 55W after a short while.
> 
> I also tried mapping my board ID to Omen or Victus configs but doesn't work,
> the ENVY seems to be different.

Hi,

Could you please provide your board ID, or clarify if it is the same as Andres?


Are you sure you've tried out all Omen or Victus configs? The latest branch for
the platforms/x86 subsystem (pdx86/for-next) has an expanded driver scope
compared to the current upstream version of the kernel you're running, so
consider using the code on that branch for mapping your board ID to specific
driver data in hp_wmi_feature_boards[]


In case none of the existing parameters apply to your ENVY laptop, the EC
behavior and specific quirks required to get it working will have to be reverse
engineered and patched into the code, rather than the regular patch of mapping
the board ID under predefined parameters.
You may contact me at my mail if that happens to be true, I'll be glad to help
in the whole process if it gets that complex.

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[Bug 220926] HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

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--- Comment #3 from Gibs (gibs23@proton.me) ---
(In reply to Suryansh Singh from comment #2)
> (In reply to Gibs from comment #1)
> > I have the same problem on same platform on kernel 7.1.8.
> > Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.
> > 
> > Package power also seems to max at 40W no matter the profile. On Windows I
> > have peaks of 115W and then drops at 55W after a short while.
> > 
> > I also tried mapping my board ID to Omen or Victus configs but doesn't work,
> > the ENVY seems to be different.
> 
> Hi,
> 
> Could you please provide your board ID, or clarify if it is the same as
> Andres?
> 
> 
> Are you sure you've tried out all Omen or Victus configs? The latest branch
> for the platforms/x86 subsystem (pdx86/for-next) has an expanded driver
> scope compared to the current upstream version of the kernel you're running,
> so consider using the code on that branch for mapping your board ID to
> specific driver data in hp_wmi_feature_boards[]
> 
> 
> In case none of the existing parameters apply to your ENVY laptop, the EC
> behavior and specific quirks required to get it working will have to be
> reverse engineered and patched into the code, rather than the regular patch
> of mapping the board ID under predefined parameters.
> You may contact me at my mail if that happens to be true, I'll be glad to
> help in the whole process if it gets that complex.

Hello, thank you for offering to help!

It is the same board:
cat /sys/class/dmi/id/board_name
8BE5

I had a look on the motherboard and I found a ENE KB9542GF chip, this seems to
be the EC. It may be present on a few Dell laptops, may have found it on an
Alienware. There's also a different package for this chip, still marked KB9542
but different suffix and QFP package, which is also present on some other
laptops, like ENVY x360 by the results of some searches.

I will have a look at the latest branch as you suggested, will report back
after testing.

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--- Comment #4 from Gibs (gibs23@proton.me) ---
(In reply to Suryansh Singh from comment #2)
> (In reply to Gibs from comment #1)
> > I have the same problem on same platform on kernel 7.1.8.
> > Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.
> > 
> > Package power also seems to max at 40W no matter the profile. On Windows I
> > have peaks of 115W and then drops at 55W after a short while.
> > 
> > I also tried mapping my board ID to Omen or Victus configs but doesn't work,
> > the ENVY seems to be different.
> 
> Hi,
> 
> Could you please provide your board ID, or clarify if it is the same as
> Andres?
> 
> 
> Are you sure you've tried out all Omen or Victus configs? The latest branch
> for the platforms/x86 subsystem (pdx86/for-next) has an expanded driver
> scope compared to the current upstream version of the kernel you're running,
> so consider using the code on that branch for mapping your board ID to
> specific driver data in hp_wmi_feature_boards[]
> 
> 
> In case none of the existing parameters apply to your ENVY laptop, the EC
> behavior and specific quirks required to get it working will have to be
> reverse engineered and patched into the code, rather than the regular patch
> of mapping the board ID under predefined parameters.
> You may contact me at my mail if that happens to be true, I'll be glad to
> help in the whole process if it gets that complex.

I tried the version from the next branch but still no results. With
&omen_v1_no_ec_thermal_params I get a kernel panic, and with the others the
driver fails to load with hp-wmi hp-wmi: probe with driver hp-wmi failed with
error -22.
For one of them I got an extra:
hp_wmi: Unknown EC layout for board 8BE5. Thermal profile readback will be
disabled. Please report this to platform-driver-x86@vger.kernel.org

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--- Comment #5 from Suryansh Singh (technosfan14@gmail.com) ---
(In reply to Gibs from comment #3)
> (In reply to Suryansh Singh from comment #2)
> > (In reply to Gibs from comment #1)
> > > I have the same problem on same platform on kernel 7.1.8.
> > > Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.
> > > 
> > > Package power also seems to max at 40W no matter the profile. On Windows
> I
> > > have peaks of 115W and then drops at 55W after a short while.
> > > 
> > > I also tried mapping my board ID to Omen or Victus configs but doesn't
> work,
> > > the ENVY seems to be different.
> > 
> > Hi,
> > 
> > Could you please provide your board ID, or clarify if it is the same as
> > Andres?
> > 
> > 
> > Are you sure you've tried out all Omen or Victus configs? The latest branch
> > for the platforms/x86 subsystem (pdx86/for-next) has an expanded driver
> > scope compared to the current upstream version of the kernel you're
> running,
> > so consider using the code on that branch for mapping your board ID to
> > specific driver data in hp_wmi_feature_boards[]
> > 
> > 
> > In case none of the existing parameters apply to your ENVY laptop, the EC
> > behavior and specific quirks required to get it working will have to be
> > reverse engineered and patched into the code, rather than the regular patch
> > of mapping the board ID under predefined parameters.
> > You may contact me at my mail if that happens to be true, I'll be glad to
> > help in the whole process if it gets that complex.
> 
> Hello, thank you for offering to help!
> 
> It is the same board:
> cat /sys/class/dmi/id/board_name
> 8BE5
> 
> I had a look on the motherboard and I found a ENE KB9542GF chip, this seems
> to be the EC. It may be present on a few Dell laptops, may have found it on
> an Alienware. There's also a different package for this chip, still marked
> KB9542 but different suffix and QFP package, which is also present on some
> other laptops, like ENVY x360 by the results of some searches.
> 
> I will have a look at the latest branch as you suggested, will report back
> after testing.

(In reply to Gibs from comment #4)
> (In reply to Suryansh Singh from comment #2)
> > (In reply to Gibs from comment #1)
> > > I have the same problem on same platform on kernel 7.1.8.
> > > Changing profiles does change fan behavior, but RPM reads 0 with hp-wmi.
> > > 
> > > Package power also seems to max at 40W no matter the profile. On Windows
> I
> > > have peaks of 115W and then drops at 55W after a short while.
> > > 
> > > I also tried mapping my board ID to Omen or Victus configs but doesn't
> work,
> > > the ENVY seems to be different.
> > 
> > Hi,
> > 
> > Could you please provide your board ID, or clarify if it is the same as
> > Andres?
> > 
> > 
> > Are you sure you've tried out all Omen or Victus configs? The latest branch
> > for the platforms/x86 subsystem (pdx86/for-next) has an expanded driver
> > scope compared to the current upstream version of the kernel you're
> running,
> > so consider using the code on that branch for mapping your board ID to
> > specific driver data in hp_wmi_feature_boards[]
> > 
> > 
> > In case none of the existing parameters apply to your ENVY laptop, the EC
> > behavior and specific quirks required to get it working will have to be
> > reverse engineered and patched into the code, rather than the regular patch
> > of mapping the board ID under predefined parameters.
> > You may contact me at my mail if that happens to be true, I'll be glad to
> > help in the whole process if it gets that complex.
> 
> I tried the version from the next branch but still no results. With
> &omen_v1_no_ec_thermal_params I get a kernel panic, and with the others the
> driver fails to load with hp-wmi hp-wmi: probe with driver hp-wmi failed
> with error -22.

I see, the kernel panic is slightly unusual, but other than that I believe your
board does not match with any of the provided driver data yet, causing a
mismatch between the actual parameters and the ones in the code, and hence the
error.


> For one of them I got an extra:
> hp_wmi: Unknown EC layout for board 8BE5. Thermal profile readback will be
> disabled. Please report this to platform-driver-x86@vger.kernel.org


I'm assuming this one happened when you mapped it to Victus S thermal params,
they still use HP_EC_OFFSET_UNKNOWN, and that is what leads to that warning
message (explicitly defined in hp-wmi.c).


Can you attach the text files made out of these commands?

sudo modprobe ec_sys
sudo hexdump -C /sys/kernel/debug/ec/ec0/io > ec_dump.txt
sudo acpidump > acpidump.txt

If possible, please also provide two more EC dumps, one while plugged in and
one while on battery power (can be named as ec_charging.txt and
ec_battery.txt). This will help me isolate the ENVY's performance flags, if
there are any relevant to the charging status.


Also, I noticed this a bit late, but in your first comment you mentioned that
you could switch profile which changed fan behavior, but hp-wmi read fan RPM at
0 and the package power didn't change.

How were you changing the profile, if you meant you did that on Linux, or did
you change it in Windows prior to rebooting? Since the driver hit a -22 probe
error when you tested, the standard /sys/firmware/acpi/platform_profile node
shouldn't even be exposed. Was it exposed before you even added your board ID
in the driver?


It might take me a while to figure out everything and multiple tests through
your device to make a working patch, but I'll try my best to help.

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[Bug 220926] HP ENVY 16-h1xxx (Hayden): hp_wmi platform_profile fails to read/write

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--- Comment #6 from Gibs (gibs23@proton.me) ---
(In reply to Suryansh Singh from comment #5)
> 
> Can you attach the text files made out of these commands?
> 
> sudo modprobe ec_sys
> sudo hexdump -C /sys/kernel/debug/ec/ec0/io > ec_dump.txt
> sudo acpidump > acpidump.txt
> 
> If possible, please also provide two more EC dumps, one while plugged in and
> one while on battery power (can be named as ec_charging.txt and
> ec_battery.txt). This will help me isolate the ENVY's performance flags, if
> there are any relevant to the charging status.
> 
> 
> Also, I noticed this a bit late, but in your first comment you mentioned
> that you could switch profile which changed fan behavior, but hp-wmi read
> fan RPM at 0 and the package power didn't change.
> 
> How were you changing the profile, if you meant you did that on Linux, or
> did you change it in Windows prior to rebooting? Since the driver hit a -22
> probe error when you tested, the standard
> /sys/firmware/acpi/platform_profile node shouldn't even be exposed. Was it
> exposed before you even added your board ID in the driver?
> 
> 
> It might take me a while to figure out everything and multiple tests through
> your device to make a working patch, but I'll try my best to help.


I tried dumping with:
```
sudo hexdump -C /sys/kernel/debug/ec/ec0/io > ec_dump.txt
```
But there's too little data in there, only 256 bytes. I looked in acpi dump and
used the 0xFE0B0800 offset to dump 512 bytes from /dev/mem directly with:
```
sudo dd if=/dev/mem bs=1 skip=$((0xFE0B0800)) count=512 2>/dev/null | hexdump
-C
```
So the attached data is from this command, to me it looks like the same data
from ec dump, but more of it. I actually monitored it with:
```
watch -n 0.1 -d "sudo dd if=/dev/mem bs=1 skip=$((0xFE0B0800)) count=512
2>/dev/null | hexdump -C"
```

This allowed me to see highlighted values that changed in time. So what I could
make out is that one fan speed is at 0x11 offset, and the other fan way over at
0x115 for some reason. These two seem to be the actual fan speed values, maybe
% . There's also set fan speed which seem to be at 0x125 and 0x126. Whenever
fan speed changes these two values change instantly, and then the actual fan
speed values start going towards those set values, and they correlate as sound,
ramping up or down.

At 0x127 there seems to be some kind of...fan speed/cooling index? 00 to 04,
where 04 is when fans spun fastest, and 00 at 0 rpm. So maybe I won't be able
to set certain fan speed rather one of these levels of cooling? 

Regarding battery power / connected charger I noticed 0x10 changes from 00 to
01 the moment I connect the charger to the laptop, and one second later or so
0x0e changes from 00 to 1a. When I disconnect the charger both offsets go to
00.

I noticed a few other values that are constantly changing, couldn't correlate
them to anything else, just an offset seems to be some kind of countdown
counter that keeps repeating.

Ah and 0xb0 and 0xb1 seem to be hotspot/die temps, and there's one more temp
that lags a bit at 0xa7, maybe edge sensor or iGPU?

Regarding the profiles:
```
cat /sys/firmware/acpi/platform_profile_choices
cool quiet balanced performance
```

And:
```
cat /sys/firmware/acpi/platform_profile
cat: /sys/firmware/acpi/platform_profile: Invalid argument
```

But this works:
```
echo "quiet" > /sys/firmware/acpi/platform_profile
```
Or any of the 4 options. To me it seemed like the behavior is changing when I
load it with stress -c 20. Fans come on faster when changing from quiet to
performance, higher power draw at low load, I think but not sure, just a quick
test.

Also managed to sort out power limit, I have to:
```
sudo sh -c 'echo 55000000 >
/sys/class/powercap/intel-rapl-mmio:0/constraint_1_power_limit_uw'
```
And this seems to increase the power limit to 55W.

Hope it is clear, sorry if hard to follow. Will attach asked files.

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--- Comment #7 from Gibs (gibs23@proton.me) ---
Created attachment 310698
  --> https://bugzilla.kernel.org/attachment.cgi?id=310698&action=edit
/sys/kernel/debug/ec/ec0/io dump

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--- Comment #8 from Gibs (gibs23@proton.me) ---
Created attachment 310699
  --> https://bugzilla.kernel.org/attachment.cgi?id=310699&action=edit
acpi dump

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--- Comment #9 from Gibs (gibs23@proton.me) ---
Created attachment 310700
  --> https://bugzilla.kernel.org/attachment.cgi?id=310700&action=edit
ec dump while on battery power

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--- Comment #10 from Gibs (gibs23@proton.me) ---
Created attachment 310701
  --> https://bugzilla.kernel.org/attachment.cgi?id=310701&action=edit
ec dump while charging

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--- Comment #11 from Gibs (gibs23@proton.me) ---
Created attachment 310702
  --> https://bugzilla.kernel.org/attachment.cgi?id=310702&action=edit
ec dump when fans are off

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--- Comment #12 from Gibs (gibs23@proton.me) ---
Created attachment 310703
  --> https://bugzilla.kernel.org/attachment.cgi?id=310703&action=edit
ec dump with fans at low speed

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--- Comment #13 from Gibs (gibs23@proton.me) ---
Created attachment 310704
  --> https://bugzilla.kernel.org/attachment.cgi?id=310704&action=edit
ec dump with fans at higher speed

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--- Comment #14 from Gibs (gibs23@proton.me) ---
Created attachment 310705
  --> https://bugzilla.kernel.org/attachment.cgi?id=310705&action=edit
ec dump while fans ramping down from higher speed to lower speed

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--- Comment #15 from Gibs (gibs23@proton.me) ---
Forgot to mention a detail, some data is missing when battery is disconnected
from laptop:

```
sudo dd if=/dev/mem bs=1 skip=$((0xFE0B0800)) count=512 2>/dev/null | hexdump
-C
00000000  00 00 00 00 00 00 40 00  00 00 00 00 00 00 1a 01  |......@.........|
00000010  01 00 32 1b ff 00 ff ff  ff ff ff ff 00 00 00 e4  |..2.............|
00000020  00 00 00 00 1e 00 02 02  06 01 00 00 52 00 00 00  |............R...|
00000030  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000050  00 00 00 00 00 00 00 00  63 05 00 00 00 00 00 00  |........c.......|
00000060  00 80 16 20 33 33 33 2d  32 44 2d 32 37 2d 41 00  |... 333-2D-27-A.|
00000070  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000080  00 00 00 00 0b 00 00 00  00 00 00 00 00 00 00 00  |................|
00000090  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000a0  00 00 00 d8 41 00 00 36  00 00 00 08 64 2a 00 78  |....A..6....d*.x|
000000b0  37 37 00 00 00 00 00 01  00 00 08 00 cb 02 00 00  |77..............|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  00 00 00 00 00 00 00 00  00 00 00 01 00 00 00 00  |................|
000000e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000100  00 00 00 03 00 06 05 00  39 00 37 3b 1b 39 60 21  |........9.7;.9`!|
00000110  4e 61 22 4f 62 2a 50 63  32 50 64 32 50 64 32 50  |Na"Ob*Pc2Pd2Pd2P|
00000120  64 32 50 64 32 00 00 00  00 00 03 00 06 00 00 39  |d2Pd2..........9|
00000130  00 37 3b 22 39 60 24 4e  61 25 4f 62 2d 50 63 35  |.7;"9`$Na%Ob-Pc5|
00000140  50 64 35 50 64 35 50 64  35 50 64 35 00 00 00 00  |Pd5Pd5Pd5Pd5....|
00000150  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000200
```

Both in ec dump or /dev/mem one.

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--- Comment #16 from Gibs (gibs23@proton.me) ---
Another detail I forgot to mention, 0x102 seems to also be coupled to actual
fan speed values, but is singular. It does track the two fan speeds, but seems
to be a higher value. Maybe PWM 8bit signal where the fan speeds are %?

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