** Description changed:
+ [Impact]
+
+ * It should be possible to change DRM driver without rebooting.
+ * It should be possible to correctly suspend & resume, whilst preserving
driver state.
+ * This bug is for userspace/logind fixes, required to get above working.
+ * Related kernel change is
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778658
+ *
https://github.com/torvalds/linux/commit/5775b843a619b3c93f946e2b55a208d9f0f48b59
+
+ [Test Case]
+
+ * Test and verify that on machines with Nvidia discrete graphics, one
+ can change performance/power-saving modes without rebooting.
+
+ [Regression Potential]
+
+ * There are changes to the fd handling that are passed to logind. At
+ worst, fd to the NVIDIA driver will still be held, and thus one would
+ continue to not be able to switch graphics modes without rebooting.
+
+ [Other Info]
+
+ * original bug report:
+
refer to https://github.com/systemd/systemd/issues/6908
we need that solution to make NVIDIA dGPU switching works.
impacted issue:
https://bugs.launchpad.net/somerville/+bug/1774326
** Changed in: systemd (Ubuntu Bionic)
Status: Incomplete => In Progress
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Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1777099
Title:
[backport] DRM devices opened by logind stay referenced indefinitely
by PID 1
Status in OEM Priority Project:
New
Status in systemd:
Fix Released
Status in systemd package in Ubuntu:
Fix Committed
Status in systemd source package in Bionic:
In Progress
Bug description:
[Impact]
* It should be possible to change DRM driver without rebooting.
* It should be possible to correctly suspend & resume, whilst preserving
driver state.
* This bug is for userspace/logind fixes, required to get above working.
* Related kernel change is
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778658
*
https://github.com/torvalds/linux/commit/5775b843a619b3c93f946e2b55a208d9f0f48b59
[Test Case]
* Test and verify that on machines with Nvidia discrete graphics, one
can change performance/power-saving modes without rebooting.
[Regression Potential]
* There are changes to the fd handling that are passed to logind. At
worst, fd to the NVIDIA driver will still be held, and thus one would
continue to not be able to switch graphics modes without rebooting.
[Other Info]
* original bug report:
refer to https://github.com/systemd/systemd/issues/6908
we need that solution to make NVIDIA dGPU switching works.
impacted issue:
https://bugs.launchpad.net/somerville/+bug/1774326
To manage notifications about this bug go to:
https://bugs.launchpad.net/oem-priority/+bug/1777099/+subscriptions
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