Comment 9 for bug 1894454

I just updated to the Nvidia 450 drivers today as part of the regular updates released today.

My computer froze when the Chrome and Brave browsers both segfaulted:

```
Sep 21 18:55:50 nopal /usr/lib/gdm3/gdm-x-session[6431]: (WW) NVIDIA(0): WAIT (2-S, 17, 0x643f79, 0x00003f70, 0x000049d4)
Sep 21 18:55:53 nopal kernel: GpuWatchdog[12519]: segfault at 0 ip 000055f768df0182 sp 00007f910e3d3390 error 6 in brave[55f763d38000+8372000]
Sep 21 18:55:53 nopal kernel: Code: 89 de e8 81 a4 75 ff 80 7d c7 00 79 09 48 8b 7d b0 e8 52 2e 62 fe 41 8b 84 24 e0 00 00 00 89 45 b0 48 8d 7d b0 e8 4e 36 4e fb <c7> 04 25 00 00 00 00 37 13 00 00 48 83 c4 48 5b 41 5c 41 5d 41 5e
Sep 21 18:55:53 nopal systemd[1]: Starting Process error reports when automatic reporting is enabled...
Sep 21 18:55:57 nopal /usr/lib/gdm3/gdm-x-session[6431]: (WW) NVIDIA(0): WAIT (1-S, 17, 0x643f79, 0x00003f70, 0x000049d4)
Sep 21 18:55:58 nopal whoopsie-upload-all[72517]: Collecting info for /var/crash/_opt_brave.com_brave_brave.1000.crash...
Sep 21 18:55:58 nopal whoopsie-upload-all[72517]: Marking /var/crash/_opt_brave.com_brave_brave.1000.crash for whoopsie upload
Sep 21 18:55:58 nopal whoopsie-upload-all[72517]: All reports processed
Sep 21 18:55:58 nopal systemd[1]: apport-autoreport.service: Succeeded.
Sep 21 18:55:58 nopal systemd[1]: Finished Process error reports when automatic reporting is enabled.
Sep 21 18:55:59 nopal whoopsie[2931]: [18:55:59] Parsing /var/crash/_opt_brave.com_brave_brave.1000.crash.
Sep 21 18:55:59 nopal whoopsie[2931]: [18:55:59] Uploading /var/crash/_opt_brave.com_brave_brave.1000.crash.
Sep 21 18:56:00 nopal whoopsie[2931]: [18:56:00] Sent; server replied with: No error
Sep 21 18:56:00 nopal whoopsie[2931]: [18:56:00] Response code: 200
Sep 21 18:56:00 nopal whoopsie[2931]: [18:56:00] Reported OOPS ID 6197b784-fc6e-11ea-a8fa-fa163e102db1
Sep 21 18:56:00 nopal systemd[1]: Starting Process error reports when automatic reporting is enabled...
Sep 21 18:56:00 nopal whoopsie-upload-all[73389]: /var/crash/_opt_brave.com_brave_brave.1000.crash already marked for upload, skipping
Sep 21 18:56:00 nopal whoopsie-upload-all[73389]: All reports processed
Sep 21 18:56:00 nopal systemd[1]: apport-autoreport.service: Succeeded.
Sep 21 18:56:00 nopal systemd[1]: Finished Process error reports when automatic reporting is enabled.
Sep 21 18:56:00 nopal /usr/lib/gdm3/gdm-x-session[6431]: (WW) NVIDIA(0): WAIT (2-S, 17, 0x643f5b, 0x00003f70, 0x000049d4)
Sep 21 18:56:02 nopal kernel: GpuWatchdog[10901]: segfault at 0 ip 000055bcb0e42a02 sp 00007fac3fb8a490 error 6 in chrome[55bcac5a8000+7bf3000]
Sep 21 18:56:02 nopal kernel: Code: 89 de e8 c1 8e 6f ff 80 7d c7 00 79 09 48 8b 7d b0 e8 42 e9 6b fe 41 8b 84 24 e0 00 00 00 89 45 b0 48 8d 7d b0 e8 ce df 9c fb <c7> 04 25 00 00 00 00 37 13 00 00 48 83 c4 48 5b 41 5c 41 5d 41 5e
Sep 21 18:56:02 nopal systemd[1]: Starting Process error reports when automatic reporting is enabled...
Sep 21 18:56:06 nopal whoopsie-upload-all[73402]: Collecting info for /var/crash/_opt_google_chrome_chrome.1000.crash...
Sep 21 18:56:06 nopal whoopsie-upload-all[73402]: Marking /var/crash/_opt_google_chrome_chrome.1000.crash for whoopsie upload
Sep 21 18:56:06 nopal whoopsie-upload-all[73402]: /var/crash/_opt_brave.com_brave_brave.1000.crash already marked for upload, skipping
Sep 21 18:56:06 nopal whoopsie-upload-all[73402]: All reports processed
Sep 21 18:56:06 nopal whoopsie[2931]: [18:56:06] Parsing /var/crash/_opt_google_chrome_chrome.1000.crash.
Sep 21 18:56:06 nopal systemd[1]: apport-autoreport.service: Succeeded.
Sep 21 18:56:06 nopal systemd[1]: Finished Process error reports when automatic reporting is enabled.
Sep 21 18:56:06 nopal whoopsie[2931]: [18:56:06] Uploading /var/crash/_opt_google_chrome_chrome.1000.crash.
Sep 21 18:56:07 nopal /usr/lib/gdm3/gdm-x-session[6431]: (WW) NVIDIA(0): WAIT (1-S, 17, 0x643f5b, 0x00003f70, 0x000049d4)
Sep 21 18:56:08 nopal whoopsie[2931]: [18:56:08] Sent; server replied with: No error
Sep 21 18:56:08 nopal whoopsie[2931]: [18:56:08] Response code: 200
Sep 21 18:56:08 nopal whoopsie[2931]: [18:56:08] Reported OOPS ID 65344bb5-fc6e-11ea-bb9d-fa163e983629
Sep 21 18:56:08 nopal systemd[1]: Starting Process error reports when automatic reporting is enabled...
Sep 21 18:56:08 nopal whoopsie-upload-all[74169]: /var/crash/_opt_google_chrome_chrome.1000.crash already marked for upload, skipping
Sep 21 18:56:08 nopal whoopsie-upload-all[74169]: /var/crash/_opt_brave.com_brave_brave.1000.crash already marked for upload, skipping
Sep 21 18:56:08 nopal whoopsie-upload-all[74169]: All reports processed
Sep 21 18:56:08 nopal systemd[1]: apport-autoreport.service: Succeeded.
Sep 21 18:56:08 nopal systemd[1]: Finished Process error reports when automatic reporting is enabled.
Sep 21 18:56:08 nopal systemd[1]: Starting Process error reports when automatic reporting is enabled...
Sep 21 18:56:08 nopal whoopsie-upload-all[74172]: /var/crash/_opt_google_chrome_chrome.1000.crash already marked for upload, skipping
Sep 21 18:56:08 nopal whoopsie-upload-all[74172]: /var/crash/_opt_brave.com_brave_brave.1000.crash already marked for upload, skipping
Sep 21 18:56:08 nopal whoopsie-upload-all[74172]: All reports processed
Sep 21 18:56:08 nopal systemd[1]: apport-autoreport.service: Succeeded.
Sep 21 18:56:08 nopal systemd[1]: Finished Process error reports when automatic reporting is enabled.
```

This issue did not happen under the 440 drivers, so seems to be related to the 450 drivers