Unsupported PM cap regs version (7)

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mikesol

Unsupported PM cap regs version (7)

Post by mikesol »

Hello guys,

I have a little issue with Gloria, when I start my laptop appears this message

Unsupported PM cap regs version (7)

And stay there about 30 seconds, after that all run normally.

Is there any problem with my hardware?

I'm using a Toshiba Laptop A305.

Thanks in advance.
mikesol

Re: Unsupported PM cap regs version (7)

Post by mikesol »

I found an explanation

Code: Select all

pm cap regs version (7)
power management capabilities register version 7

some pci device in your computer uses version 7 which apparently is not supported by the kernel as of yet.

You can use sudo lspci -v and look to see which pci device uses version 7.

In my case it was the LAN card. So I went into the BIOS and disabled it and did not get a message.
So there is no danger to your system. It just cannot fully manage all the power options available to one of your pci devices. Probably the NIC. Its just too bad I still have to see that dang message every time.
So i execute the lspci -v command and the device using version 7 is my Ethernet controller

Code: Select all

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
	Subsystem: Toshiba America Info Systems Device ff1e
	Flags: bus master, fast devsel, latency 0, IRQ 2299
	I/O ports at 3000 [size=256]
	Memory at d0410000 (64-bit, prefetchable) [size=4K]
	Memory at d0400000 (64-bit, prefetchable) [size=64K]
	Capabilities: [40] Power Management version 7
	Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
	Capabilities: [70] Express Endpoint, MSI 01
	Capabilities: [ac] MSI-X: Enable- Mask- TabSize=2
	Capabilities: [cc] Vital Product Data <?>
	Capabilities: [100] Advanced Error Reporting <?>
	Capabilities: [140] Virtual Channel <?>
	Capabilities: [160] Device Serial Number 00-00-ff-ff-00-00-00-08
	Kernel driver in use: r8169
	Kernel modules: r8169
I don't know how to remove that message, because if I disable the ethernet in the bios, I won't have internet, right?. Any help is appreciated.

thanks
mikesol

Re: Unsupported PM cap regs version (7)

Post by mikesol »

No ideas??????
Bouncer

Re: Unsupported PM cap regs version (7)

Post by Bouncer »

Try disabling it and find out? for me my ethernet is only used by my bios for boot from network and wake on activity
markus-1969
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Joined: Sat Sep 14, 2019 7:38 am

Re: Unsupported PM cap regs version (7)

Post by markus-1969 »

I am using Linux mint XFCE 64 bit on more than one computer - the hard disks are encrypted.

When the error "unsupported PM caps regs versdion (7)" occurs, it is time to backup all data on an extenal computer / HD and to reinstall the computer. After reinstallation, the computer will be working normally for weeks.

In my opinion, the error is NOT caused by hardware - the error is that the files stored on the hard disk are unreadable ...
[4.510521] --- [end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
I did not find a solution to boot the system from the hard disk and to run e. g. fsck ...
or to boot the system from a DVD and to run fsck

I had the error on a different machine ...

viewtopic.php?f=46&t=301737&p=1686593&h ... k#p1686593

was helpful.
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