Bug 1706512

I find that it get frozen for exactly 5 seconds before working normally. It's amazing. Maybe Nvidia driver is the root cause in this case.

Hi Bugzilla :-)

Here is a bit more info for you:
1) In Fedora 29, no issues
2) Upgraded to Fedora 30 ---- issues begins as described by Charles
3) Desktop GUI/Interface/Environment that it seems to effect is Gnome 3.32
4) Random/Intermittently, the entire computer stalls for about 5 seconds, 100% CPU across all threads for the entire duration
   -- at the instant that control is regained, there is an error in /var/log/messages 
      May  3 11:49:42 msi /usr/libexec/gdm-x-session[19743]: nvLock: client timed out, taking the lock

5) all same nvidia drivers as Charles
6) Original Linux kernel command line options when issue observed/experienced
   -- kernelopts=root=UUID=fa49cb7d-7285-46d8-add2-3e2b691c1405 ro nouveau.modeset=0 rd.driver.blacklist=nouveau  nvidia-drm.modeset=1 resume=/dev/mapper/fedora-swap rd.lvm.lv=fedora/swap rhgb

7) Linux kernel command line options when issue seems to be reolved
   -- kernelopts=root=UUID=fa49cb7d-7285-46d8-add2-3e2b691c1405 ro nouveau.modeset=0 rd.driver.blacklist=nouveau  i915.modeset=1 nvidia-drm.modeset=0 resume=/dev/mapper/fedora-swap rd.lvm.lv=fedora/swap rhgb

My conclusions:
Either the Nvidia DRM kernel module is not quite ready for prime time OR Gnome 3.32 is using the driver incorrectly.
 -- and I am leaning more to the "Gnome 3.32" because in Gnome 3.31 I didn't have any observable issues with nvidia-drm.modeset=1


EIner

Hi Einer,

As you said, I resole this issue by setting nouveau.modeset=0 to disable Nvidia DRM.

This comment help me: https://fedoramagazine.org/upgrading-fedora-29-to-fedora-30/#comment-484974

Hi Einer,

But I still don't know you guys how to trace this issue back to Nvidia DRM. I'm just very very very curious.

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