Arch Linux

JonnyRobbie

Member

Registered: 2015-04-28

Posts: 170

[SOLVED] Notebook doesn't wake up without external monitor connected

When my external HDMI monitor is connected, the suspend/hybernate and wake-up works as expected. However when the notebook is on its own, upon waking, the built-in stays off for whatever reason making the ntb unusable. I cannot switch to another tty, I can only do a hard power off.

I cannot ssh into the machine over wifi. I think I could over the ethernet cable though.

I wonder if is has something to do with this issue https://bugs.archlinux.org/task/38486

$ dmesg -T | tail
[Wed Jul 27 11:17:30 2016] CE: hpet increased min_delta_ns to 20115 nsec
[Wed Jul 27 11:47:34 2016] pciehp 0000:00:01.0:pcie04: Card present on Slot(0)
[Wed Jul 27 11:47:35 2016] pciehp 0000:00:01.0:pcie04: Device 0000:08:00.0 already exists at 0000:08:00, cannot hot-add
[Wed Jul 27 11:47:35 2016] pciehp 0000:00:01.0:pcie04: Cannot add device at 0000:08:00
[Wed Jul 27 12:03:34 2016] pciehp 0000:00:01.0:pcie04: Card not present on Slot(0)
[Wed Jul 27 12:03:34 2016] pciehp 0000:00:01.0:pcie04: Card present on Slot(0)
[Wed Jul 27 12:03:35 2016] pciehp 0000:00:01.0:pcie04: Device 0000:08:00.0 already exists at 0000:08:00, cannot hot-add
[Wed Jul 27 12:03:35 2016] pciehp 0000:00:01.0:pcie04: Cannot add device at 0000:08:00
[Wed Jul 27 12:03:37 2016] pciehp 0000:00:01.0:pcie04: Device 0000:08:00.0 already exists at 0000:08:00, cannot hot-add
[Wed Jul 27 12:03:37 2016] pciehp 0000:00:01.0:pcie04: Cannot add device at 0000:08:00

$ lspci | grep "08:00"
08:00.0 VGA compatible controller: NVIDIA Corporation G94M [GeForce 9800M GS] (rev a1)

...but that also might be a dead end.

Any Idea how would I go about fixing the wake-up issue?

$ uname -roms
Linux 4.6.4-1-ARCH x86_64 GNU/Linux

Last edited by JonnyRobbie (2016-08-25 10:18:14)

kokoko3k

Member

Registered: 2008-11-14

Posts: 2,393

Re: [SOLVED] Notebook doesn't wake up without external monitor connected

I've had a problem that my notebook did not hibernate when hdmi was connected.
Don't know if it is related, but the bug was introduced somewhere in the 4.6.x kernel.
Try an older one (4.5.x), or lts, or linux-git from aur

---

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JonnyRobbie

Member

Registered: 2015-04-28

Posts: 170

Re: [SOLVED] Notebook doesn't wake up without external monitor connected

I think I got a solution, after examining dmesg and getting

[  235.009801] NVRM: Your current system configuration has known problems when
[  235.009806] NVRM: accessing PCI Configuration Space that can lead to accesses
[  235.009808] NVRM: to the PCI Configuration Space of the wrong PCI device. This
[  235.009809] NVRM: is known to cause instabilities with the NVIDIA graphics driver.
[  235.009811] NVRM: 
[  235.009812] NVRM: Please see the MMConfig section in the readme for more information
[  235.009813] NVRM: on how to work around this problem.

I found I could try adding pci=nommconf as a kernel parameter. It might help. I did one suspend/resume without problems so far.

I think it's more of a workaround rather then solution as it doesn't explain why it was fine with hdmi connected, but I'm tagging it for now.