On Mon, Mar 03, 2025 at 06:10:09AM -0800, Kenneth Crudup wrote: > > > > And my system recognizes all new TB devices automatically > > > (no manual intervention required). > > On 3/3/25 06:01, Mika Westerberg wrote: > > > Right it does that if you have screen unlocked. > > I'm running Kubuntu (24.10); AFAIK it just allows them anyway. The "System > Settings" dialog is just an Enable/Disable toggle. Ah okay then nevermind. > > If you "forget" them then it should in theory at least keep from creating > > PCIe tunnels, so keeping them out of the equation (we just want to > > concentrate on the TB/DP side here). > > But what I can try is just connecting the monitors directly; the portable > monitor directly to one of the laptop's USB-Cs, and the Odyssey's > USB-C-to-DP w/o using the dock. Actually just managed to reproduce this with hibernate \o/ so debugging now. My steps: (I run buildroot based distro on my test systems so there is nothing authorizing PCIe tunnels by default) 1. Boot the system up, nothing connected. 2. Connect TBT 4 dock to the host. 3. Connect monitor to the TBT 4 dock. 4. Verify picture on screen. 5. Enter hibernate # rtcwake -s 60 -m disk 6. Once booted up and resumed from disk verify that the monitor displays correctly.
