I found the answer. This camera kind of works when there is
insufficient power - audio but no camera.
https://bugzilla.kernel.org/show_bug.cgi?id=220148
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I filed a companion bug with the kernel:
https://bugzilla.kernel.org/show_bug.cgi?id=220148
** Bug watch added: Linux Kernel Bug Tracker #220148
https://bugzilla.kernel.org/show_bug.cgi?id=220148
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I tested on the latest mainline kernel and still have the same issue:
jlquinn@cerberus:~$ v4l2-ctl --device /dev/video0 --stream-mmap
--stream-to=frame.raw --stream-count=1
VIDIOC_STREAMON returned -1 (Protocol error)
jlquinn@cerberus:~$ uname -a
Linux cerberus 6.15.0-061500rc7-ge
Public bug reported:
jlquinn@cerberus:~/sw/src/libcamera$ lsb_release -rd
No LSB modules are available.
Description:Ubuntu 24.04.2 LTS
Release:24.04
jlquinn@cerberus:~/sw/src/libcamera$ apt-cache policy
linux-image-6.11.0-25-generic
linux-image-6.11.0-25-generic:
Installed: 6.11.0-2
jlquinn@cerberus:~/money$ apport-collect 2098034
Package linux-meta-hwe-6.8 not installed and no hook available, ignoring
** Changed in: linux-meta-hwe-6.8 (Ubuntu)
Status: New => Confirmed
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VLC also fails to video capture from this camera.
I read a couple v4l2 suggested diagnostics:
jlquinn@cerberus:~$ v4l2-ctl --list-formats-ext
ioctl: VIDIOC_ENUM_FMT
Type: Video Capture
[0]: 'MJPG' (Motion-JPEG, compressed)
Size: Discrete 1920x1080
Public bug reported:
I have a webcam that is not working for video. Audio works fine. I
think the kernel is unhappy with it, based on logs.
It fails for me in gnome cheese, in zoom, under firefox.
Please let me know if you need other data.
jlquinn@cerberus:~$ lsb_release -rd
Description:U
Public bug reported:
I'm trying to copy files from internal filesystems to an external
Samsung SSD T5 EVO. I'm copying a long list of large files. The first
one copies fine. The next one hangs.
If I let it run, files after the first one copy at about 3M/s, which is
extremely slow. The drive i
Video lockup is reproducible.
This may not be a kernel issue. Switching to wayland display server
doesn't lock up this way.
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Public bug reported:
jlquinn@jenks:~/bug$ lsb_release -d
Description:Ubuntu 20.04.2 LTS
jlquinn@jenks:~/bug$ apt-cache policy linux-image-5.8.0-59-generic
linux-image-5.8.0-59-generic:
Installed: 5.8.0-59.66~20.04.1
Candidate: 5.8.0-59.66~20.04.1
Version table:
*** 5.8.0-59.66~20.04.1 5
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1870014
Title:
task blocked too long
Status in linux package in Ubuntu:
C
apport information
** Tags added: apport-collected
** Description changed:
I have Ubuntu 18.04 on my system. When I boot, I get a black screen
once mode switching happens. Rescue mode (aka nomodeswitch) would bring
me to a gui screen correctly.
I tried backing off to X.org from Wayl
I followed the instructions to change to confirmed. But the kernel
from proposed, as well as the mainline one I have up at the moment, work
correctly.
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** Attachment added: "Taken after I plug in the device"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870014/+attachment/5382114/+files/lsusb.txt
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** Attachment added: "Log showing kernel failure"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1870014/+attachment/5382115/+files/kernel.log
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I tested with the latest kernel image I saw, which appears to be 5.7.1:
ii linux-image-unsigned-5.7.1-050701-generi 5.7.1-050701.202006071230 amd64
Linux kernel image for version 5.7.1 on 64 bit x86 SMP
jlquinn@cerberus:~$ uname -a
Linux cerberus 5.7.1-050701-generic #2020060
Yes, I have my gui back without amdgpu.dc=0. Thanks!
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1881390
Title:
amdgpu
On a laptop with Ubuntu 16.04, this same device behaves as expected.
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Title:
task blocked too long
Status in linux package in Ubunt
Public bug reported:
I plugged in the EasyCap device, then started VLC to read from it.
Nothing worked, and I saw the following call traces from the kernel:
Mar 31 23:48:30 cerberus kernel: [49598.934870] usb 3-6: new full-speed USB
device number 41 using xhci_hcd
Mar 31 23:48:30 cerberus kerne
On 06/24/2016 06:08 AM, Joseph Salisbury wrote:
> Did this issue start happening after an update/upgrade? Was there a
> prior kernel version where you were not having this particular problem?
This is a rare problem. I think I've seen this happen a couple of times in
the last several months. In
Public bug reported:
Once in a long while when I bring my laptop out of sleep, the wifi fails
to connect. I don't see any obvious issues except that the kernel log
shows that the wifi link is not ready.
When I removed and reinserted iwlwifi, the network came up as expected.
ProblemType: Bug
Dis
On 03/18/2016 02:59 PM, Joseph Salisbury wrote:
> Did this issue start happening after an update/upgrade? Was there a
> prior kernel version where you were not having this particular problem?
This is a rare bug. I think it's happened once in the 6 months that I've had
the laptop.
Suggestions?
Public bug reported:
I tried to suspend my Lenovo Carbon X1 by shutting the lid. Later, I
found that instead of suspending, it was hot and spinning the cpu fan on
full. I had to hold the power button until I rebooted the machine.
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-gener
Bug 1396654 c++ demangle support missing reported as a duplicate of this
one.
Is anyone working on it? I'm having difficulty profiling c++ on ubuntu.
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On 08/31/2015 12:46 PM, Joseph Salisbury wrote:
> Did this issue start happening after an update/upgrade? Was there a
> prior kernel version where you were not having this particular problem?
>
> Would it be possible for you to test the latest upstream kernel? Refer
> to https://wiki.ubuntu.com/Ke
Public bug reported:
I put the machine to sleep and it failed to wake. Here is the tail of
the kernel log before forced reboot:
Aug 25 19:50:02 tiamat kernel: [122297.382169] PM: Syncing filesystems ... done.
Aug 25 19:50:02 tiamat kernel: [122297.400399] PM: Preparing system for mem
sleep
Aug
I just received a kernel update:
3.16.0-34-generic
I'm going to give this a chance first. If I still get failures, I'll
try the upstream kernel.
Thanks
Jerry
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Public bug reported:
On resume, networking was disabled and I could not reenable it. There
are warnings in the kernel log that are concerning. Networking used to
be stable on resume. This kernel or perhaps a previous one seems to
have made it less so.
jlquinn@tiamat:~/x1carbon$ lsb_release -a
Public bug reported:
I have a fresh install of 14.04 lts on a Lenovo X1 Carbon v2. I've
noticed that the wireless network connection will drop and I have to
disable and reenable networking to get it to work again.
It's occurring to me now that this could be a problem with
NetowrkManager rather t
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