Just want to remind us that this was NOT AN ISSUE UNTIL after the September 2020 Ubuntu 20.04 updates that included the updates to 20.04.1. Therefore I have trouble with dismissing it as a known, unaddressed hardware issue. If so, why did it work fine prior to those updates? No: there were several old bugs (things that were fixed in Ubuntu in months even years past) that came back after those September updates. For example, the initramfs issues (and I just saw a number of initramfs-related updates in the most recent 20.04.1 updates) that have had to be fixed again.
Going by the old adage of what changed last: this sure looks and feels like software rather than hardware...
And George: yes this is on "initial" startup in the dock. I typically let the system run and just use screen blanking when it's docked; then do a shutdown when I'm leaving the office. I don't typically use suspend when it's docked; but when I have (to test) it has resumed normally: I press the spacebar to get the login prompt; enter the login; and the desktop reappears. I also don't hot dock or undock. That's part of the reason I don't suspend in the dock: if using suspend that way, then most likely the laptop will be undocked and re-docked while in suspend. So it will resume in a different configuration. Yes that should work, but I try not to "invite" trouble(!)
Just want to remind us that this was NOT AN ISSUE UNTIL after the September 2020 Ubuntu 20.04 updates that included the updates to 20.04.1. Therefore I have trouble with dismissing it as a known, unaddressed hardware issue. If so, why did it work fine prior to those updates? No: there were several old bugs (things that were fixed in Ubuntu in months even years past) that came back after those September updates. For example, the initramfs issues (and I just saw a number of initramfs-related updates in the most recent 20.04.1 updates) that have had to be fixed again.
Going by the old adage of what changed last: this sure looks and feels like software rather than hardware...
And George: yes this is on "initial" startup in the dock. I typically let the system run and just use screen blanking when it's docked; then do a shutdown when I'm leaving the office. I don't typically use suspend when it's docked; but when I have (to test) it has resumed normally: I press the spacebar to get the login prompt; enter the login; and the desktop reappears. I also don't hot dock or undock. That's part of the reason I don't suspend in the dock: if using suspend that way, then most likely the laptop will be undocked and re-docked while in suspend. So it will resume in a different configuration. Yes that should work, but I try not to "invite" trouble(!)