Mumble Push to Talk does not work on Natty

I also had a PTT configuration pre-upgrade to Natty, post upgrade the configuration is still visibly set in the configuration UI but one is not able to use the said key.

I played with this a bit, and by default mumble tries to open /dev/input, and failing that uses xinput 2.0. Now I ran mumble as root and then it was able to open /dev/input and both PTT and changing hot key setup (Bug #714701) we then working again.

I suspect that the X server upgrade has broken Xinput 2.0 in some way.

Perhaps someone with Xinput 2.0 knowledge could look at the mumble client and see if what it thinks it is doing make sense.

Which key is being used for PTT?

Key does not matter, it will not accept any keyboard input.

On Mon, Feb 07, 2011 at 05:07:40PM -0000, Chase Douglas wrote:
> Which key is being used for PTT?

I was using Control_R, though in the dialog to select a PTT key no key was
recognised when pressed.

-apw

Mumble uses XInput 1, and on Natty this has stopped generating input events. A rewrite to XInput 2 won't happen until all current distros are XI2 capable.

On Maverick, 'xinput test' of the device 'xinput list' shows as the keyboard will show key presses and releases. On current Natty, this is no longer the case.
In other words, it seems XInput1 for keyboard buttons is broken at the moment.

@Timo, any clues? Do you know if XInput1 changed with this latest xserver?

I'll look into it. No ideas as yet.

I've changed the tag from regression-proposed to regression-release as this is not about a package from -proposed.

Bug filed upstream and assigned to Peter as per his request, and added as a release blocker for xserver 1.10 (which was supposed to be released early next week, but we'll see..)

patch confirmed to work, and pushed to git.

This bug was fixed in the package xorg-server - 2:1.9.99.902-2ubuntu1

---------------
xorg-server (2:1.9.99.902-2ubuntu1) natty; urgency=low

  [ Christopher James Halse Rogers ]
  * Merge from Debian experimental. Remaining Ubuntu changes:
    - rules:
      + Disable SELinux, libaudit-dev is not in main yet. (LP #406226)
      + Enable xcsecurity. (LP #247537)
      + Add --with-extra-module-dir to support GL alternatives.
      + Mention Ubuntu support in builderstring rather than package uploader's
        email address.
    - control:
      + Xvfb depends on xauth, x11-xkb-utils. (LP #500102)
      + Add breaks for incompatible drivers. (LP #614993)
      + Drop libaudit-dev from build-deps.
      + Build-depend on newer mesa to pick up DRI search paths variable.
    - local/xvfb-run*: Add correct docs about error codes. (LP #328205)
    - debian/patches:
      + 100_rethrow_signals.patch:
        When aborting, re-raise signals for apport
      + 105_nvidia_fglrx_autodetect.patch:
        Load proprietary drivers automatically when installed.
      + 109_fix-swcursor-crash.patch:
        Avoid dereferencing null pointer while reloading cursors during
        resume. (LP: #371405)
      + 111_armel-drv-fallbacks.patch:
        Add support for armel driver fallbacks.
      + 121_only_switch_vt_when_active.diff:
        Add a check to prevent the X server from changing the VT when killing
        GDM from the console.
      + 122_xext_fix_card32_overflow_in_xauth.patch:
        Fix server crash when “xauth generate” is called with large timeout.
      + 157_check_null_modes.patch, 162_null_crtc_in_rotation.patch,
        166_nullptr_xinerama_keyrepeat.patch, 167_nullptr_xisbread.patch
        169_mipointer_nullptr_checks.patch,
        172_cwgetbackingpicture_nullptr_check.patch:
        Fix various segfaults in xserver by checking pointers for NULL
        values before dereferencing them.
      + 165_man_xorg_conf_no_device_ident.patch
        Correct man page
      + 168_glibc_trace_to_stderr.patch:
        Report abort traces to stderr instead of terminal
      + 184_virtual_devices_autodetect.patch:
        Use vesa for qemu device, which is not supported by cirrus
      + 188_default_primary_to_first_busid.patch:
        Pick the first device and carry on (LP: #459512)
      + 190_cache-xkbcomp_output_for_fast_start_up.patch:
      + 191-Xorg-add-an-extra-module-path.patch:
        Add support for the alternatives module path.
      + 198_nohwaccess.patch:
        Adds a -nohwaccess argument to make X not access the hardware
        ports directly.
      + 200_randr-null.patch:
        Clarify a pointer initialization.
      + 206_intel_8xx_default_to_fbdev.patch:
        Makes 8xx class intel GPUs default to fbdev for stability. (LP: #633593)
      + 208_switch_on_release.diff:
        Switch keyboard layouts on key-release rather than key-press
   (LP #36812)
      + 209_add_legacy_bgnone_option.patch:
        Add -nr as a synonym for -background none until all ?DM are updated for
   the new option.
      + 210_pixman_null_ptr_check.patch:
        Catch NULL pointer access after pixman_image_create_bits() failure
   (LP #705078)
...