Public bug reported:
The computer is a notebook model PB71RD from Clevo. The problem happens in all
Clevo models:
P960E*, P970E*, P960R*, P970R*, P960RC*, P970RC, PB51E*, PB71E*, PB51R*, PB71R*
with mainboard identifiers (cat /sys/devices/virtual/dmi/id/board_name):
- P95_96_97Ex_Rx
- PB50_70EF_ED_EC
- PB50_70RF_RD_RC
- P9XXRC
and NVIDIA GPU (in this case: GeForce RTX 2060 and also on GeForce GTX
1660 Ti).
The problem only happens with kernel >= 5.0.0 and using the NVIDIA proprietary
driver.
On kernel 4.18 suspend works without problems on both GPU's (NVIDIA and Intel)
When using the Intel GPU or the nouveau driver then suspend works without
problems.
With kernel 4.18 suspend works without problems on both GPU's.
| NVIDIA proprietary | Intel GPU | nouveau |
| kernel 4.18 | works | works | works |
| kernel 5.0.0.x | no suspend | works | works |
I have tried different proprietary drivers, official Ubuntu Versions and
from PPA: 418 430.26 435.21
The notebook has a hybrid GPU configuration with NVIDIA and Intel GPUs.
The notebook goes into suspend when pressing the suspend button (Fn-
suspend).
When pressing the suspend button again, the power button light goes on
and nothing else happens.
| power button | power LED | Battery LED | HD LED
Notebook on | on | on | on | sporadic
suspend | off | blinking | on | off
freeze after | on | on | on | off
activated
from STR
The system is a Ubuntu 18.04.3
cat /etc/issue:
Ubuntu 18.04.3 LTS \n \l
uname -a:
Linux test-notebook 5.0.0-27-generic #28~18.04.1-Ubuntu SMP Thu Aug 22 03:00:32
UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I first thought that it could be an ACPI-Problem. I reluctantly tried
acpi_osi=linux and all other OS's (as listed in: strings
/sys/firmware/acpi/tables/DSDT | grep -i windows | sort) for
GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub
Also acpi_os_name=linux
Also tried to blacklist the nouveau driver.
Nothing helped.
Then i found out that a driver from pop-os launchpad worked. I posted a
possible solution on the button of this message.
LOGFILES:
I will attach now the logfiles as required on the Ubuntu Website
DebuggingKernelSuspend (https://wiki.ubuntu.com/DebuggingKernelSuspend)
dmesg.txt from: sh -c "sync && echo 1 > /sys/power/pm_trace && pm-
suspend"
I think the problem might be this:
[ 2.797119] Magic number: 2:1:0
[ 2.797623] memory memory48: hash matches
Answers to DebuggingKernelSuspend:
1. the system freezes when comming back from STR
2. suspend was activated by pressing: Fn+suspendButton
3. resume was activated by pressing: Fn+suspendButton
4. As required i installed the newest non-daily mainline kernel (v5.3-rc8)
now the notebook refuses to go into freeze at all, it just returns to the
desktop
As the fix described below works only on kernel 5.0.0.x i will continue with
information gathered with the kernel 5.0.0.27-generic
The logs are all attached to this message.
POSSIBLE SOLUTION:
The solution i found was a patch for nvidia-kernel-source-435
pop-os included the patch into nvidia-dkms-435:
diff --git a/nvidia/nv.c b/nvidia/nv.c
index b6dc6f3..ed250c8 100644
--- a/nvidia/nv.c
+++ b/nvidia/nv.c
@@ -4200,8 +4200,6 @@ nv_power_management(
nv_kthread_q_stop(&nvl->bottom_half_q);
nv_disable_pat_support();
-
- pci_save_state(nvl->pci_dev);
break;
}
case NV_PM_ACTION_RESUME:
I testet it with different notebook models from Clevo with a different hardware
than mentioned above . It had no adverse effects so far.
Is this a possible solution? Could this be sent upstream? I would gladly
provide more information if necessary.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: nvidia-driver-430 430.26-0ubuntu0.18.04.2
ProcVersionSignature: Ubuntu 5.0.0-27.28~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-27-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Sep 12 11:52:09 2019
InstallationDate: Installed on 2019-09-12 (0 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: nvidia-graphics-drivers-430
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: nvidia-graphics-drivers-430 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic kernel nvidia
** Attachment added: "dmesg after reboot from freeze resume STD"
https://bugs.launchpad.net/bugs/1843695/+attachment/5288234/+files/dmesg_pm_trace.txt
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to nvidia-graphics-drivers-430 in Ubuntu.
https://bugs.launchpad.net/bugs/1843695
Title:
Freeze after suspend to RAM nvidia kernel 5.0.0.x
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-430/+bug/1843695/+subscriptions
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