Public bug reported:
Expectation: Bluetooth headphones attach with stereo sound on every connect.
Issue: only stereo after manual switch of settings on first pair. Reconnect
only has mono connection.
Ubuntu 17.10 on a System76 Serval WS.
Mono audio with the Sony 1000XM2 bluetooth headphones is
I did not test Power Management: off before upgrading to Ubuntu 15.10.
Ubuntu 15.10's default config is Power Management: off and I haven't
seen the issue with this configuration. I'm no longer testing on 15.04
and considering this closed.
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I caught the an unexpected disconnect event behavior and this is the
iwconfig info:
iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry short limit:7 RTS thr:off
Here are the results from the iwconfig while on the UMD campus wireless
that frequently expresses this issue.
iwconfig
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"umd-secure"
Mode:Managed Frequency:2.462 GHz Access Point: 00:26:CB:80:34:62
Bit
Public bug reported:
On the University of Maryland College Park campus I am experiencing wifi
connectivity issues where I get an initial connection with the built in
wifi card, but it will drop frequently and have difficulty reconnecting
to this secured wifi. This is at multiple locations on
Tested again with 4.3.0-040300rv4 issue still present.
** Tags removed: kernel-bug-exists-upstream-4.3.0-040300rc3
** Tags added: kernel-bug-exists-upstream-4.3.0-040300rc4
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Description changed:
- On the University of
I ran into the same issue with the latest mainline kernel
4.3.0-040300rc3-generic.
** Tags added: kernel-bug-exists-upstream kernel-bug-exists-
upstream-4.3.0-040300rc3 kernel-bug-exists-upstream-kernel-bug-exists-
upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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The model number is: E1R45AV
Model Description: HP ENVY 15Z-J100 NOTEBOOK PC
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https://bugs.launchpad.net/bugs/1501876
Title:
Cisco Linksys AE1000 rt2x00usb_vendor_request:
Public bug reported:
On the University of Maryland College Park Campus I am experiencing wifi
connectivity issues where I get an initial connection, but it will drop
frequently and have difficulty reconnecting to this secured wifi. This
is at multiple locations on campus, but not off campus that
Public bug reported:
After running the system testing default and hwsubmit tests I see in
dmesg -l err the following firmware bug noted:
[Firmware Bug]: cpu 0, try to use APIC500 (LVT offset 0) for vector 0xf9, but
the register is already in use for vector 0x400 on another cpu
[ 1563.122513]
apport information
** Tags added: apport-collected
** Description changed:
After running the system testing default and hwsubmit tests I see in
dmesg -l err the following firmware bug noted:
[Firmware Bug]: cpu 0, try to use APIC500 (LVT offset 0) for vector 0xf9, but
the register is
Public bug reported:
When running 14.04 on the Asus Crosshair IV Formula with the IOMMU enabled and
AMD-virtualization enabled. The dmesg -l err shows:
[0.108481] [Firmware Bug]: AMD-Vi: IOAPIC[6] not in IVRS table
[0.108483] [Firmware Bug]: AMD-Vi: No southbridge IOAPIC found
[
Public bug reported:
Current dmesg warnings - no errors in dmesg - see [ 18.338895]
Warnings also appears in the latest mainline kernel of 3.14.0-031400
generic
dmesg -l warn shown below
0.00] ACPI: RSDP 000fbed0 24 (v02 ACPIAM)
[0.00] ACPI: XSDT 9fe90100
Successful booted with daily image 3/27/14 for 14.04 Not sure the exact
day that the issue or package causing this was patched, but at this time
this can be closed.
Should this be marked invalid or does the broad time frame of between
March 12 2014 and March 27 2014 a commit was made to the
New attempt of daily image from March 6, 2014 fully patched for the day
at 8:42pm Eastern time Panic still occurs
Includes last of the dmesg and call trace from exit
** Attachment added: March 6 Image test - drm_kms_helper panic
I've tried the latest Trusty daily build for Jan 28 with kernel 3.13.0
-5 generic which also does not boot. There is a bit more verbose trace
on the screen when typing exit which is the attached image. I was
unsure how to add the mainline kernel to the live usb test drive to try
a mainline boot
** Attachment added: older 14.04 exit trace easier to see from Jan 20 2014
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1266900/+attachment/3961081/+files/IMG_20140120_174236.jpg
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I'm not sure if this should be considered fixed upstream or if the issue
persists upstream due to the lack of a test on 14.04 with the mainline
kernel. The testing instructions were unclear especially with the
removal of the trusty tag as this was an issue intended for trusty, but
the saucy tag
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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https://bugs.launchpad.net/bugs/1266900
Title:
kernel panic ubuntu daily image AMD 64
Status in
** Attachment added: 14.04 daily image kernel panic photo - dmesg then exit
commands
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1266900/+attachment/3942803/+files/IMG_20140107_140409.jpg
** Description changed:
Expected action: to boot to the Ubuntu daily image for development
Public bug reported:
Expected action: to boot to the Ubuntu daily image for development of
14.04
Actual action: does not boot to ubuntu only shows initramfs command line
I have yet been able to boot using a USB to the daily build for 14.04 on
this computer while it runs with 13.10 (with some
** Tags added: trusty
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https://bugs.launchpad.net/bugs/1266900
Title:
kernel panic ubuntu daily image AMD 64
Status in “linux” package in Ubuntu:
Incomplete
Bug
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