If application switcher is open when a new windows spawns, the screen turns off.
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Compiz Core |
Invalid
|
Undecided
|
Unassigned |
Bug Description
I've come across an amazingly odd issue with 100% reproducibility.
I use application switcher with alt+tab. If the applications switcher dialog is open while a new window is opened, the screen freezes for 3 seconds, and then turns off (this is a laptop).
SSHing into the machine and rebooting it, does *not* solve the issue. A full power-cycle is needed for it to work again.
I checked though /var/log, and found the following which might be useful, in kernel.log (the same text is repeated several dozen times):
Apr 5 02:50:49 hermes kernel: [ 4292.286311] ------------[ cut here ]------------
Apr 5 02:50:49 hermes kernel: [ 4292.286322] WARNING: at drivers/
Apr 5 02:50:49 hermes kernel: [ 4292.286325] Hardware name: Compaq Presario C700 Notebook PC
Apr 5 02:50:49 hermes kernel: [ 4292.286327] pipe A assertion failure (expected on, current off)
Apr 5 02:50:49 hermes kernel: [ 4292.286329] Modules linked in: fuse hid_logitech_dj usbhid hid uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev v4l2_compat_ioctl32 media uas ums_realtek usb_storage arc4 joydev ath5k snd_hda_
Apr 5 02:50:49 hermes kernel: [ 4292.286368] Pid: 1021, comm: upowerd Tainted: G W 3.3.1-1-ARCH #1
Apr 5 02:50:49 hermes kernel: [ 4292.286370] Call Trace:
Apr 5 02:50:49 hermes kernel: [ 4292.286374] [<ffffffff81050
Apr 5 02:50:49 hermes kernel: [ 4292.286377] [<ffffffff81050
Apr 5 02:50:49 hermes kernel: [ 4292.286390] [<ffffffffa00ae
Apr 5 02:50:49 hermes kernel: [ 4292.286400] [<ffffffffa00ae
Apr 5 02:50:49 hermes kernel: [ 4292.286411] [<ffffffffa00b1
Apr 5 02:50:49 hermes kernel: [ 4292.286421] [<ffffffffa00b1
Apr 5 02:50:49 hermes kernel: [ 4292.286428] [<ffffffffa0070
Apr 5 02:50:49 hermes kernel: [ 4292.286440] [<ffffffffa00b5
Apr 5 02:50:49 hermes kernel: [ 4292.286452] [<ffffffffa00c6
Apr 5 02:50:49 hermes kernel: [ 4292.286462] [<ffffffffa0033
Apr 5 02:50:49 hermes kernel: [ 4292.286467] [<ffffffff81309
Apr 5 02:50:49 hermes kernel: [ 4292.286471] [<ffffffff81110
Apr 5 02:50:49 hermes kernel: [ 4292.286474] [<ffffffff811db
Apr 5 02:50:49 hermes kernel: [ 4292.286478] [<ffffffff8116e
Apr 5 02:50:49 hermes kernel: [ 4292.286481] [<ffffffff8116e
Apr 5 02:50:49 hermes kernel: [ 4292.286485] [<ffffffff81462
Apr 5 02:50:49 hermes kernel: [ 4292.286487] ---[ end trace b0e2d0631ab936a4 ]---
I'm merging this bug into my other bug-report, #973989, since the root cause seems to be the same.