Hi Robie, I'm apologize to missed this information. I've add them in the bug description.
** Description changed: + [Impact] + + * In any Ubuntu series, if user using a old GPU (which supported by + nvidia-390 only) then issuing glxinfo will get "Error: couldn't find RGB + GLX visual or fbconfig". Which mean the Xorg doesn't load dri driver + correctly. + + [Test Plan] + + * install nvidia-390 on nvidia-390 supported system. + * prime-select on-demand + * reboot + * glxinfo + * after applying this patch, it will fall back to "ON" mode after reboot. + + [Where problems could occur] + * Since nvidia-390 doesn't support on-demand mode (RTD3 either). If a user stays in on-demand mode with 390 without problem, the after upgrading u-d-c and reboot. The mode will fall back to "ON" mode. + * From my point of view, it's fine because nvidia-390 doesn't support RTD3. Thus, the nvidia will always stay in "Active" stage no matter which mode it is. + + --- + The regression from https://bugs.launchpad.net/ubuntu/+source/ubuntu- drivers-common/+bug/1942789. It impacts Jammy and Impish so far. [Steps to reproduce] 1. Find a GPU supports nvidia-390 2. ubuntu-drivers install nvidia:390 3. prime-select on-demand 4. glxinfo [Expected result] Shows intel or nvidia drives monitor [Actual result] Error: couldn't find RGB GLX visual or fbconfig Since we are all agree "on-demand" mode as default mode. Pre-talk with Alberto, on-demand doesn't support with nvidia-390 (no matter RTD3). We could consider to make it as performance mode and leave a note on nvidia-settings. I'll prepare some test packages. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/1957094 Title: on-demand mode doesn't work with nvidia-390 Status in OEM Priority Project: New Status in nvidia-settings package in Ubuntu: New Status in ubuntu-drivers-common package in Ubuntu: Fix Committed Status in nvidia-settings source package in Impish: New Status in ubuntu-drivers-common source package in Impish: Triaged Status in nvidia-settings source package in Jammy: New Status in ubuntu-drivers-common source package in Jammy: Fix Committed Bug description: [Impact] * In any Ubuntu series, if user using a old GPU (which supported by nvidia-390 only) then issuing glxinfo will get "Error: couldn't find RGB GLX visual or fbconfig". Which mean the Xorg doesn't load dri driver correctly. [Test Plan] * install nvidia-390 on nvidia-390 supported system. * prime-select on-demand * reboot * glxinfo * after applying this patch, it will fall back to "ON" mode after reboot. [Where problems could occur] * Since nvidia-390 doesn't support on-demand mode (RTD3 either). If a user stays in on-demand mode with 390 without problem, the after upgrading u-d-c and reboot. The mode will fall back to "ON" mode. * From my point of view, it's fine because nvidia-390 doesn't support RTD3. Thus, the nvidia will always stay in "Active" stage no matter which mode it is. --- The regression from https://bugs.launchpad.net/ubuntu/+source/ubuntu- drivers-common/+bug/1942789. It impacts Jammy and Impish so far. [Steps to reproduce] 1. Find a GPU supports nvidia-390 2. ubuntu-drivers install nvidia:390 3. prime-select on-demand 4. glxinfo [Expected result] Shows intel or nvidia drives monitor [Actual result] Error: couldn't find RGB GLX visual or fbconfig Since we are all agree "on-demand" mode as default mode. Pre-talk with Alberto, on-demand doesn't support with nvidia-390 (no matter RTD3). We could consider to make it as performance mode and leave a note on nvidia-settings. I'll prepare some test packages. To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1957094/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp