[Bug 299496] Re: no more caps-lock LED, Ctrl-Alt-F1-F6 nor USB power some time after boot

[Launchpad Bug Tracker]

[Expired for acpi-support (Ubuntu) because there has been no activity
for 60 days.]

** Changed in: acpi-support (Ubuntu)
       Status: Incomplete => Expired

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Title:
  no more caps-lock LED, Ctrl-Alt-F1-F6 nor USB power some time after
  boot

Status in acpi-support package in Ubuntu:
  Expired

Bug description:
  Binary package hint: acpi-support

  At first, hibernation aka. suspend to disk seems to work fine, but
  there are a couple of weird issues not noticeable immediately that
  render it dysfunctional:

  #1 Keys Ctrl-Alt F1-F7 do not react at all anymore!

  #2 The Caps-Lock key works in X, but the keyboard light does not
  toggle.

  #3 Approximately three minutes after resume from disk (hibernation), my external USB mouse stops working. It appears that all USB ports do not supply power anymore. It worked seconds before. kern.log contains:
  Nov 18 09:54:51 laptop kernel: [15673.436160] ACPI: Waking up from system sleep state S4
  ...
  Nov 18 09:55:38 laptop kernel: [15723.472077] usb 2-1: reset low speed USB device using uhci_hcd and address 3
  Nov 18 09:55:54 laptop kernel: [15739.560087] usb 2-1: reset low speed USB device using uhci_hcd and address 3
  Nov 18 09:56:04 laptop kernel: [15749.648028] usb 2-1: reset low speed USB device using uhci_hcd and address 3
  Nov 18 09:56:47 laptop kernel: [15792.316059] usb 2-1: reset low speed USB device using uhci_hcd and address 3
  Nov 18 09:57:13 laptop kernel: [15817.984084] usb 2-1: reset low speed USB device using uhci_hcd and address 3
  Nov 18 09:57:13 laptop kernel: [15818.288133] usb 2-1: failed to restore interface 0 altsetting 0 (error=-71)
  Nov 18 09:57:13 laptop kernel: [15818.290642] usb 2-1: USB disconnect, address 3

  Unplugging/replugging doesn't help afterwards. USB seems dead.
  The laptop's two internal touchpad and button-amid-keyboard mice continue to work.

  Despite the above issues, X seems mostly functional (some apps may hang sooner or later). However, I could not create another session on vt8. Xorg.20.log says:
  Fatal server error:
  xf86OpenConsole: VT_WAITACTIVE failed: Interrupted system call

  Suspend to RAM is not affected.

  The machine is a HP Compaq nc6220 laptop, running Intrepid (updated from Hardy, updated from Gutsy, all release versions, no beta) with the latest updates at the time of writing.
  Hibernation worked good enough (not perfect, it has other quirks) in Hardy.

  uname -a: Linux laptop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux
  /proc/version_signature: Ubuntu 2.6.27-7.16-generic

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