Alrighty. Thank you for you attempts, Kai-Heng.
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Title:
Freezes instead of suspending, most times
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Suspend/resume bugs are hard to debug without physical access.
If lastest kernel and lastest Nvidia driver don't help, we are out of luck.
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Title:
Thank you for responding, Kai-Heng. Attached.
** Attachment added: "dmesg output, no suspend attempt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1846214/+attachment/5325221/+files/dmesg-with-nvidia-driver-435-clean-boot.log
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Yes, please attach dmesg.
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Title:
Freezes instead of suspending, most times
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Thank you for the suggestion, Kai-Heng.
Tried with the nvidia-driver-435 installed, after reboot, and 2 out of 2
failures. I also made sure that `lsmod | grep nvidia` prints some
modules. Not sure which modules exactly I'm looking for. Perhaps looking
at some logs would be better, but I have a
Can you please remove the mainline kernel, install Nvidia proprietary driver
and retest?
nouveau.ko doesn't have best support to nvidia cards.
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Thank you for following up, Kai-Heng.
I downloaded these files:
```
-rw-r--r-- 1 mightyiam mightyiam 11M Dec 12 18:57
temp/linux-headers-5.5.0-050500rc1_5.5.0-050500rc1.201912081930_all.deb
-rw-r--r-- 1 mightyiam mightyiam 1.2M Dec 12 18:42
Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.5-rc1/
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Title:
Freezes instead of suspending, most times
Thank you for your suggestion, Kai-Heng. I did that in
`/etc/default/grub`. After editing I ran `sudo update-grub` without
trouble. I rebooted and made sure with `lsmod` that `nouveau` is not
loaded. And I still got a freeze.
Is there anything else we could investigate, please?
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Can you please try kernel parameter "blacklist=nouveau
modprobe.blacklist=nouveau"?
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Title:
Freezes instead of suspending, most times
To manage
In case it could help, here's the output of the same command after a
successful suspend/resume.
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Title:
Freezes instead of suspending, most
** Attachment added: "Output of `journalctl -b -1 -k` after successful
suspend/resume"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1846214/+attachment/5303250/+files/journalctl.log
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Same symptoms. Keyboard backlights are on. Power button LED on. No
suspension. Turned off via power button long press.
Here's the output of `journalctl -b -1 -k`.
** Attachment added: "`journalctl -b -1 -k`"
Thank you for the follow-up, Kai-Heng.
Before altering the value, I checked and `cat /sys/power/mem_sleep`
returned `s2idle [deep]`.
And now the command you suggested seems to have changed it to `[s2idle]
deep`.
I will post this and then run `# systemctl suspend`.
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Please see if this helps:
# echo s2idle > /sys/power/mem_sleep
# systemctl suspend
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Title:
Freezes instead of suspending, most times
To manage
Thank you for following up, Kai-Heng.
To answer your question, I don't remember ever having a reliable suspend
in this system.
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Title:
Freezes
Unfortunately I don't see suspend attempt in the log.
Is this a regression?
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Title:
Freezes instead of suspending, most times
To manage
Thank you for your assistance, Kai-Heng. Attached is the output of the
command you specified.
** Attachment added: "Output of `journalctl -b -1 -k`"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1846214/+attachment/5301075/+files/journalctl.log
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Please collect log via `journalctl -b -1 -k` at next boot after freeze.
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Title:
Freezes instead of suspending, most times
To manage
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