Re: ERROR: Writing to dgpu_disable cause Input/Output error

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On Thursday, January 4th, 2024 at 1:05 AM, Armin Wolf <W_Armin@xxxxxx> wrote:


> Am 03.01.24 um 19:51 schrieb Athul Krishna:
> 
> > Hello,
> > This is my first time reporting an issue in the kernel.
> > 
> > Device Details:
> > 
> > * Asus Zephyrus G14 (||||||GA402RJ)
> > * Latest BIOS
> > * Arch_x86_64
> > * Kernel: 6.6.9
> > * Minimal install using archinstall
> > 
> > ISSUE: Using /dgpu_disable /provided by _asus-nb-wmi _to disable and
> > enable dedicated gpu,
> > causes system crash and reboots, randomly.
> > 9/10 times writing 0 to dgpu_disable will produce an Input/Output
> > error, but the value will be changed to 0, half the time system will
> > crash and reboot. While writing 1 to it doesn't produce an error, I
> > have observed system crash twice just after that.
> > 
> > Steps to Reproduce:
> > 
> > * Remove dpgu: echo 1 | sudo tee ../remove (dgpu path)
> > * echo 1 | sudo tee /sys/devices/platform/asus-nb-wmi/dgpu_disable
> > * echo 0 | sudo tee /sys/devices/platform/asus-nb-wmi/dgpu_disable
> > 
> > * echo 1 | sudo tee /sys/bus/pci/rescan
> > 
> > After writing 0 to dgpu_disable, there's an entry in journal about an
> > ACPI bug.
> > Output of 'journalctl -p 3' and lspci is attached.
> 
> 
> Hi,
> 
> Can you share the output of "acpidump" and the content of "/sys/bus/wmi/devices/05901221-D566-11D1-B2F0-00A0C9062910[-X]/bmof"?
> The bmof files contain a description of the WMI interfaces of your machine, which might be important for diagnosing the error.
> 
> Thanks,
> Armin Wolf

Here's the output of 'acpidump > acpidump.out' and 'cat /sys/bus/wmi/devices/05901221-D566-11D1-B2F0-00A0C9062910[-X]/bmof'

Attachment: acpidump.out
Description: Binary data

Attachment: bmof[-3]
Description: Binary data

Attachment: bmof[-4]
Description: Binary data

Attachment: bmof[-2]
Description: Binary data

Attachment: bmof[-1]
Description: Binary data

Attachment: bmof
Description: Binary data


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