I'm using a Dell m1330 (4GB ram, nvidia graphics, Dell wireless module) and I'm seen this problem initially with 64-bit Hardy. After trying everything suggested on the net, I installed 32-bit Hardy, and I'm having the exact same symptoms. I don't have a dock, but I'm using a USB hub that I have a keyboard and mouse plugged into.
I did some testing of different scenarios - different keyboards and mice, and different USB hubs - and can reproduce the problem very reliably. If I have any devices directly plugged into any or both of the machine's USB ports, suspend/resume work nicely (as far as USB goes anyway). However, if I have any USB hub attached, when I suspend, USB does not work on resume. A previous poster mentioned that his issue did not occur if he resumed without the dock that was attached at suspend time. This does not work for me. As long as a hub is attached at suspend time, USB is hosed on resume. I notice that the output of dmesg shows "USB disconnect" during resume (see below). This is consistent every time USB gets hosed on resume. [ 2.602386] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 2.605252] ata1.00: configured for UDMA/133 [ 2.606852] sd 0:0:0:0: [sda] 390721968 512-byte hardware sectors (200050 MB) [ 2.606909] sd 0:0:0:0: [sda] Write Protect is off [ 2.606910] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 2.606982] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 2.613191] sd 0:0:0:0: [sda] Starting disk [ 2.680851] PM: Finishing wakeup. [ 2.680854] Restarting tasks ... <6>usb 5-1: USB disconnect, address 7 [ 2.768433] done. [ 2.837317] usb 7-2: USB disconnect, address 18 [ 2.837322] usb 7-2.1: USB disconnect, address 19 [ 2.965299] usb 7-2.2: USB disconnect, address And here's something interesting... after a hosed resume, issuing the lsusb command totally locks up the console! I'm not a kernel developer so I can't pinpoint this, but something in the USB code hates USB hubs. -- [regression] Dock with USB devices + suspend == resume fails https://bugs.launchpad.net/bugs/218760 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
