FS#51549 - [linux] after upgrade to 4.8.x lspci does not return system freezes if external monitor is attached

Attached to Project: Arch Linux
Opened by Carsten Pohl (archlinuxuser7719) - Thursday, 27 October 2016, 13:41 GMT
Last edited by Eli Schwartz (eschwartz) - Monday, 16 October 2017, 15:50 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
After upgrading to 4.8.* a lot of problems appeared:

* lspci never returns after call, you can't even kill -9 the process anymore, calling it with strace shows that is hangs at a pread64...
* when I attach/disconnect an external monitor via mini display port the system freezes
* when I shutdown the system, the system freezes for multiple minutes, then displays some text, then freezes again
* when I lock my screen (super + L) the system freezes as well

All these freezes are non-recoverable. You have to power down the system.

Rolling back to linux-4.7.6-1-x86_64 removes all the problems.

Additional info:
* linux-4.8.4-1-x86_64

This started with linux-4.8.2-1-x86_64, and still exists in linux-4.8.4-1-x86_64

Steps to reproduce:
* Just attach / reattach external monitor via mini display port, or try to shutdown the system
This task depends upon

Closed by  Eli Schwartz (eschwartz)
Monday, 16 October 2017, 15:50 GMT
Reason for closing:  Fixed
Additional comments about closing:  linux 4.9.x
Comment by Carsten Pohl (archlinuxuser7719) - Thursday, 27 October 2016, 14:33 GMT
Forgot lshw
   lshw.txt (17.4 KiB)
Comment by mattia (nTia89) - Friday, 28 October 2016, 16:35 GMT
Are you on GNOME?
Comment by Carsten Pohl (archlinuxuser7719) - Saturday, 29 October 2016, 12:38 GMT
yes, I am using gnome 3
Comment by mattia (nTia89) - Saturday, 29 October 2016, 14:56 GMT
Are you on XOrg or Wayland?
with gnome 3.22 wayland is the new default session...!!!
Comment by Carsten Pohl (archlinuxuser7719) - Saturday, 29 October 2016, 15:03 GMT
I am on XOrg and I am using antergos, I could try to use wayland. I was not aware that this has changed. I updated to gnome 3.22 but i was simply not aware of the requirement change. I will try to use wayland then. But before I change that, I guess I have to read up a bit. I don't know how gpu support works under wayland, multi monitor, and all that. I will read up and experiment, but thanks for the advice. I am curious though, why is antergros then still shipping xorg with gnome 3.22?
Comment by mattia (nTia89) - Saturday, 29 October 2016, 15:12 GMT
I've underlined that change because I've had similar issue in the Wayland session...
Comment by Dino Hensen (d.hensen) - Saturday, 29 October 2016, 18:22 GMT
I am also experiencing this shutdown problem with 4.8.*
I'm on a Dell E7450, if I shutdown it takes a long time, I can see no logs.. after a while it just powers off, but I get weird status LEDs that I needed to decipher.
There are two statusses that I get:

One LED flashing Two LED On:
FLASH ON ON - CPU or processor failure

Two LED flashing One LED On:
FLASH FLASH On - Graphics card failure

(according to: http://www.matt-helps.com/dell_diagnostic_codes_during_post/)

I am using BSPWM, but occasionally I am on GNOME (wife uses laptop too). I also at random times experienced that my screen would not refresh except for when I move the mouse. This can only be worked around by rebooting. Both on Xorg

I ran lshw after downgrading to 4.7.6-1-ARCH again, does it matter?
   lshw.txt (15.8 KiB)
Comment by mattia (nTia89) - Sunday, 15 October 2017, 07:58 GMT
I cannot reproduce it.
Is this issue still valid?
Comment by Dino Hensen (d.hensen) - Sunday, 15 October 2017, 20:08 GMT
I'm currently on 4.13.5-1-ARCH, I only had this issue around the time of 4.8.*, I completely skipped all 4.8.* versions and updated when 4.9 came out.
For 4.8.* I don't know if this is still an issue

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