Leaving iommu on and setting it to passthrough also fixes it
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.8.0-2107347-generic
root=/dev/mapper/vgroot-lvroot ro intel_iommu=on iommu=pt
2025-07-08 14:26:20 (358 MB/s)
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.8.0-2107347-generic
root=/dev
All of them are affected.
Linux srv1r730xd-007d 6.7.6-060706-generic #7aa948b5 SMP PREEMPT_DYNAMIC Thu
Jul 3 18:13:21 CEST 2025 x86_64 x86_64 x86_64 GNU/Linux
2025-07-03 18:53:00 (232 MB/s)
Linux srv1r730xd-007d 6.7.6-060706-generic #cbaf9be3 SMP PREEMPT_DYNAMIC Thu
Jul 3 10:35:12 CEST 2025 x
All 3 presented the issue
Linux srv1r730xd-007d 6.7.6-060706-generic #519475c5 SMP PREEMPT_DYNAMIC Wed
Jul 2 09:22:01 CEST 2025 x86_64 x86_64 x86_64 GNU/Linux
2025-07-02 15:25:31 (247 MB/s)
Linux srv1r730xd-007d 6.7.6-060706-generic #cfc86a96 SMP PREEMPT_DYNAMIC Wed
Jul 2 12:44:36 CEST 2025 x
no problems on both.
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Title:
Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.8.0-40 through 6.12.16
Stat
I am having a similar problem when using the amd igpu.
portavales@tamborim:~$ uname -a
Linux tamborim 6.14.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Sun Apr 6
15:05:05 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
portavales@tamborim:~$ lsmod | grep -E "nvidia|amdgpu|i915"
nvidia_uvm 2113
still no problem
2025-05-12 13:54:39 (372 MB/s)
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Title:
Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.8
Same, no problem.
2025-04-29 13:25:34 (344 MB/s)
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Title:
Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.
No, it doesn't
2025-04-24 14:20:11 (355 MB/s)
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Title:
Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.8.0
I think I found the kernel which adds the first downgrade in performance
between 6.5.0-45 and 6.8.0-38. I tried the same downloads with kernels
on mainline repo:
6.7.6-060706-generic = 2025-04-22 20:17:13 (323 MB/s)
6.7.7-060707-generic = 2025-04-22 20:37:24 (229 MB/s)
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Hi @ecanepa, yes, this restores the performance to the values we were
seeing on 6.8.0-38 and 6.8.0-39, but still far from what we were seeing
on 5.15 and 6.5.
Downloads from local server:
6.5.0-45-generic = 2025-04-22 14:37:10 (344 MB/s)
6.8.0-2107347-generic = 2025-04-22 14:30:14 (248 MB/s)
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** Summary changed:
- Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.8.0-38 through 6.12.17
+ Severe Network Performance Regression with BCM57800/BCM57810 on Kernel
6.8.0-40 through 6.12.16
** Description changed:
Significant network performance degradation when usi
** Attachment added: "6.12.17_before_download.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2107347/+attachment/5872449/+files/6.12.17_before_download.txt
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htt
** Attachment added: "6.12.17_after_download.txt"
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** Attachment added: "6.12.16_after_download.txt"
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apport information
** Attachment added: "Lspci-vt.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872246/+files/Lspci-vt.txt
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** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872249/+files/ProcInterrupts.txt
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** Attachment added: "Lspci.txt"
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** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872252/+files/WifiSyslog.txt
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** Attachment added: "acpidump.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872253/+files/acpidump.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "ProcCpuinfoMinimal.txt"
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** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872244/+files/CurrentDmesg.txt
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** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/2107347/+attachment/5872250/+files/ProcModules.txt
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ProblemType: Bug
AlsaDevices:
total 0
crw-rw 1 root audio 116, 1 Apr 16 20:55 seq
crw-rw 1 root audio 116, 33 Apr 16 20:55 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.11-0ubuntu82.6
Architecture: amd64
ArecordDevices: Error: [Errno 2] No s
** Description changed:
Significant network performance degradation when using Broadcom
- BCM57800/BCM57810 (bnx2x) NICs on Ubuntu Jammy with kernels starting
- from 6.8.0-38, with the issue becoming severe and rendering the system
- unusable from 6.8.0-40 onwards.
+ BCM57800/BCM57810 (bnx2x) NI
v6.12.17 is the last problematic, v6.12.18 fixes it for the
BCM57800/bnx2x
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Title:
Severe network performance issues with Kernel 6.8
I've tested, didn't fix. Now I'll check for the first kernel with the
correction.
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Title:
Severe network performance issues with Ker
Hi, @weble. Yes 6.14.2 fixes it
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Title:
Severe network performance issues with Kernel 6.8.0-53 and 6.11.0-17
(Xubuntu) on Proxmox
No avail.
I'm o a Dell R730xd E5-2699 v4, running Ubuntu Jammy on the baremetal,
no virtualization.
On any kernel from 5.15 up to 6.5.0-45 I reach 350MB/s in a wget from
one internal server, then on kernel 6.8.0-38 and 6.8.0-39 I see a drop
to 260MB/s and from 6.8.0-40 onwards it drops again to 3
I'm seeing the same behavior on Jammy with 6.8.0-57-generic on a
BCM57800 and bnx2x driver. Disabling gro didn't help.
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Title:
Sever
Same problem here after upgrading from Ubuntu 22.04 to Ubuntu 24.04.
I tried installing pulseuadio; it did not work.
I tried blacklisting snd_soc_avs; it did nor work.
Kernel: 6.8.0-45-generic
** Attachment added: "alsa-info.txt"
https://bugs.launchpad.net/ubuntu/+source/pipewire/+bug/20631
: 2.28.1-0ubuntu3.1
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/seq:felipe 1798 F pipewire
/dev/snd/controlC0: felipe 1798 F pipewire
felipe 1803 F wireplumber
CasperMD5CheckResult: unknown
CurrentDesktop
quick question: With Ubuntu Live Patch turned on, will I be able
to receive kernel update according to Canonical's updates?
Kind regards,
Felipe.
Em sex., 16 de ago. de 2024 às 14:30, Philip Cox <2077...@bugs.launchpad.net>
escreveu:
> Hi, thanks for taking the time to file this bug re
Public bug reported:
Computer was in sleep mode. Opened up the lid and got the error.
Thinkpad L14 Gen 2 operating with liquorix kernel 6.8.
ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: linux-hwe-6.8-tools-6.8.0-40 6.8.0-40.40~22.04.3
Uname: Linux 6.9.12-1-liquorix-amd64 x86_64
Appor
Hi, I can confirm that linux 5.15.0.106.106 (package version
5.15.0-106.116) from -proposed works, without the issue.
Thanks!
FF
PS: To clarify: the previous versions I had were 5.15.0-101.111 and
-105.115, not -102.112.
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P
Public bug reported:
Dear Ubuntu maintainers, I think I found a regression in linux
5.15.0-105.
In the past few days, my keyboard stopped working after waking up from
suspend (sleep), so I couldn't unlock my laptop. Various workarounds
found on the internet helped, but I wanted to investigate if
Update: The disconnection problems are unrelated to this ticket and can
be fixed with the iommu=pt kernel parameter. The device seems to work
without problems despite the UBSAN warnings.
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I am able to compile the kernel with the patch you posted and now I am
getting the following errors:
[ 78.330687] UBSAN: invalid-load in
drivers/net/wireless/ath/ath5k/base.c:488:16
[ 78.330689] load of value 144 is not a valid value for type '_Bool'
and
[ 78.330842] UBSAN: invalid-load in
This keeps happening in kernel 5.19.0-38-generic. I installed the 4 debs
from the link above
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1972140/comments/13
then with grub I booted the linux-image-
unsigned-5.18.0-4-generic_5.18.0-4.4 kernel. Result: It refuses to load
the athk5 module. Th
Public bug reported:
idk, when i started the computer this was the rror
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: nvidia-driver-510 510.60.02-0ubuntu0.20.04.2
ProcVersionSignature: Ubuntu 5.13.0-40.45~20.04.1-generic 5.13.19
Uname: Linux 5.13.0-40-generic x86_64
NonfreeKernelModul
Since the -16 version of the kernel was not available anymore, the bug
was back for me. I then downloaded and installed 5.11.1-051101-generic
with mainline and the bug is NOT happening with this kernel version.
Hope this info helps. Thanks.
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I can confirm UX433F without extra symbols working properly turning On/Off
option from the numpad button is also working without issues.
Thanks, Mohamed!
El mié, 7 abr 2021 a las 16:00, Leesa (<1810...@bugs.launchpad.net>)
escribió:
> F8 was the first thing I commented out, I vote for removal or
Funny I was having this problem, or at least similar, and I found out
the wifi was interfering. Moving the router away from the laptop
resolved the issue.
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*** This bug is a duplicate of bug 1824559 ***
https://bugs.launchpad.net/bugs/1824559
Funny I was having this problem, or at least similar, and I found out
the wifi was interfering. Moving the router away from the laptop
resolved the issue.
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Public bug reported:
It's not working.
ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: libnvidia-common-450-server (not installed)
ProcVersionSignature: Ubuntu 5.4.0-53.59-generic 5.4.65
Uname: Linux 5.4.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.12
Architecture: amd64
CasperM
Hey, I was able to find that the bug was fixed in v5.4-rc1. I haven't been able
to find the commit that fixes the issue though. Trying to run:
$ make -j`nproc` deb-pkg
Gives me the error: make: *** No rule to make target 'nproc'. Stop.
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Sweet! That worked! Thank you for bearing with me and providing this
support. Very much appreciated Kai-Heng.
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Title:
19.10 Boots in
Should I build this from source? Or is there a .deb package that I can
install with dpkg?
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Title:
19.10 Boots into a black screen
S
That didn't help.
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Title:
19.10 Boots into a black screen
Status in linux package in Ubuntu:
Invalid
Bug description:
After up
Oh nice, and I should install all the updates or just upgrade the grub?
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Title:
19.10 Boots into a black screen
Status in linux pac
So I should download this?
https://www.ubuntuupdates.org/package/core/eoan/main/proposed/linux
Then extract the .tar and follow these steps?
http://www.berkes.ca/guides/linux_kernel.html
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** Description changed:
After upgrading to 19.10 and rebooting. My machine goes into a frozen
black screen. The default kernel after the update (5.3.0-23-generic)
does not succeed in booting. If I select the older kernel,
5.0.0-36-generic, grub does go through and succeeds booting up.
-
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306377/+files/ProcInterrupts.txt
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apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306379/+files/PulseList.txt
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** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306381/+files/UdevDb.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306378/+files/ProcModules.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306382/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: New => Invalid
** Converted to question:
https://answers.launchpad.net/ubuntu/+source/linux/+question/686
apport information
** Attachment added: "RfKill.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306380/+files/RfKill.txt
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** Attachment added: "ProcCpuinfoMinimal.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306375/+files/ProcCpuinfoMinimal.txt
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** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306372/+files/IwConfig.txt
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** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306373/+files/Lspci.txt
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** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306370/+files/CRDA.txt
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Ti
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** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306374/+files/ProcCpuinfo.txt
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** Tags added: apport-collected eoan
** Description changed:
After upgrading to 19.10 and rebooting. My machine goes into a frozen
black screen. The default kernel after the update (5.3.0-23-generic)
does not succeed in booting. If I select the older kernel,
5.0.0-36-g
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306376/+files/ProcEnviron.txt
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** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1853075/+attachment/5306371/+files/CurrentDmesg.txt
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** Description changed:
After upgrading to 19.10 and rebooting. My machine goes into a frozen
black screen. The default kernel after the update (5.3.0-23-generic)
does not succeed in booting. If I select the older kernel,
5.0.0-36-generic, grub does go through and succeeds booting up.
-
Public bug reported:
After upgrading to 19.10 and rebooting. My machine goes into a frozen
black screen. The default kernel after the update (5.3.0-23-generic)
does not succeed in booting. If I select the older kernel,
5.0.0-36-generic, grub does go through and succeeds booting up.
System is a De
I can confirm setting acltype to posixacl on the dataset shared via NFS
fixes the issue.
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Title:
umask ignored on NFSv4.2 mounts
St
+1
Same issue with my ASUS ZenBook UX433FN - Ubuntu 19.04 - Kernel
5.0.0-20-generic - numpad not working. This is one of the coolest
features of this laptop and is not woking in Ubuntu. With Windows it
works properly.
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This issue is gone to me after I updated the kernel to v4.19. I tried
v5.1.9 first, but my WiFi stopped working, so I rolled back a bit. I'm
running Linux Mint 19 that was on kernel 4.15.
A couple of folders were missing on a particular samba share mounted via
fstab. I was able to access them by m
I am having this issue now with kernel 4.15.0-44-generic in a Dell
Latitude E7440. Ubuntu 18.04
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Title:
Suspend fails in Kubuntu 18.
wow! see this was opened in 2007. just googled this from the future (i
am in 2018) and found this.
using ubuntu 18. found that what was causing it in my case was a
clipboard manager i use here. closing the clipboard manager stopped the
bleeding.
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transferred to Ubuntu users.
For now, I will have to settle for using the line out to listen to
spotify in the library while working.
Best regards,
Felipe.
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This week I got updates for several packages apparently related with
sound management, as well as a new kernel. After update and reboot, the
headphones jack started to work again. Connection/disconnection was
correctly managed in PulseAudio, and audio quality was very good.
However, like in the pr
Public bug reported:
congiguration of nvidia-settings failed, then i tried to reinstal nvidia
driver but i had problems
ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: libnvidia-compute-390 390.77-0ubuntu0.18.04.1
ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
Uname: Linux 4.
Additonal comment:
S/PDIF out is *always connected*, so there is a red light coming out of
the combo headphones + S/PDIF jack (it is a 2 in 1 combo connection
according to the user manual of the laptop).
If I remember correctly, the patch that solved this issue in Ubuntu
16.04 turned the S/PDIF o
Update: as per request from my laptop vendor, I updated the BIOS
firmware of my computer(Clevo P650HP), then reinstalled Ubuntu 18.04.1.
After this process I was able to trace the source (or one of them) of
this bug:
- Right after the fresh install, the headphones jack and line-out jack
work fine
Here is another user affected by the same issue. Running Ubuntu 18.04.1,
kernel 4.15.0-34-generic.
In Ubuntu 16.04 LTS, I was also experiencing similar problems: optical
output in headphones jack was always on (could see the red light), no
headphones sound after suspending to RAM, and not recogniz
** Description changed:
I'm using a laptop lenovo thinkpad T410 with intel graphics and egpu + GTX
1050. (using expresscard or mini pcie both failed)
- When I install the 390 driver my graphical display fails. I know that egpu is
not the best solution but worked with some people.
+ When I inst
Public bug reported:
I'm using a laptop lenovo thinkpad T410 with intel graphics and egpu + GTX
1050. (using expresscard or mini pcie both failed)
When I install the 390 driver my graphical display fails. I know that egpu is
not the best solution but worked with some people.
** Affects: nvidia-
qs);
+ } else
req_vq = virtscsi_pick_vq(vscsi, tgt);
return virtscsi_queuecommand(vscsi, req_vq, sc);
Signed-off-by: Felipe Franciosi
Please consider this a urgent fix as all of our customers which use
Ubuntu 16.04 and have MQ enabled for better performance w
_vq(vscsi, tgt);
return virtscsi_queuecommand(vscsi, req_vq, sc);
Signed-off-by: Felipe Franciosi
Please consider this a urgent fix as all of our customers which use
Ubuntu 16.04 and have MQ enabled for better performance will be
affected by your latest update. Our workaround is
(vscsi, tgt);
Signed-off-by: Felipe Franciosi
-8<-
I'm happy to test it again if you'd like, but it should be functionally
identical.
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_inc(&tgt->reqs);
+ + } else
req_vq = virtscsi_pick_vq(vscsi, tgt);
return virtscsi_queuecommand(vscsi, req_vq, sc);
Signed-off-by: Felipe Franciosi
-
- Please consider this a urgent fix as all of our customers which use Ubuntu
16.04 and have MQ enabled for
atomic_inc(&tgt->reqs);
- } else
+ else
req_vq = virtscsi_pick_vq(vscsi, tgt);
return virtscsi_queuecommand(vscsi, req_vq, sc);
Signed-off-by: Felipe Franciosi
Please consider this a urgent fix as all of our customers which use Ubuntu
16.0
host_use_blk_mq(sh)) {
+ if (shost_use_blk_mq(sh))
req_vq = virtscsi_pick_vq_mq(vscsi, sc);
- atomic_inc(&tgt->reqs);
- } else
+ else
req_vq = virtscsi_pick_vq(vscsi, tgt);
return virtscsi_queuecommand(vscsi, req_vq, sc);
Signed
dell latitude 7380, having the same issue, I will try the workaround
from comment #26
~ $ uname -a
Linux maul 4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:58:14 UTC 2018 x86_64
x86_64 x86_64 GNU/Linux
~ $ lsb_release -a
LSB Version:core-9.20170808ubuntu1-noarch:security-9.20170808ubunt
This seems to be related to
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742095 on which I
found a workaround for the DKMS build process.
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Now, I managed to compile the drivers and since the package was already
installed, all I had to do was add the missing header:
cd /usr/src/nvidia-387-387.26/nvidia-uvm
sudo sed '1i#include ' -i uvm8_va_block.c
Then compile and install:
sudo dkms autoinstall -k $(uname -r)
And lastly re
I noticed that DKMS fails to compile the drivers for this kernel. I have
no issues when downgrading to nvidia-384, but as someone said above it
breaks CUDA.
** Attachment added: "nvidia-387.0.crash"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742095/+attachment/5034866/+files/nvidia-
Hello guys,
Installing the kernel reported in the bug description step #8 by
@'Anthony Wong (anthonywong)' finally solved my problem.
Dear @'Anthony Wong (anthonywong)' thank you so much for spending your
invaluable time solving this problem. Grettings from Colombia!
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You received this bug no
Hello guys,
I want to add some updates for some of you that still has some hard
problems with your laptops..
As @'Leó Kolbeinsson (leok)' said in #411 and @'Anthony M.
(thatanthonyguy)' confirmed in #428 and #430 and then @'Leó Kolbeinsson
(leok)' reply back again in #433, this can let you boot y
** Description changed:
Description: An update to linux kernel on Ubuntu 17.10 that enabled the
intel-spi-* drivers made Insyde BIOS unusable. Main issues were Settings
being not stored, USB Boot impossible and EFI entries read-only.
Fix: The issue was fixed in Kernel Version 4.13.0-21.
Good day guys,
I have a HP 14-r012la Notebook PC with the same BIOS problem..
It has installed Xubuntu 17.10 (x64) and I can't change any
configuration in the BIOS nor boot any USB drive.
I have tried installing ukuu kernel software and tested some kernels to
see if they can solve the problem: 4
Using kernel 4.14.0-041400rc5-generic the problem is still present.
** Description changed:
[Impact]
- bluetooth can not be used. With previous ubuntu versions (e.g. xenial
- and zesty) this headset worked mostly flawless (as good as a bluetooth
- device can work in linux at least).
-
+ blu
Public bug reported:
[Impact]
bluetooth can not be used. With previous ubuntu versions (e.g. xenial
and zesty) this headset worked mostly flawless (as good as a bluetooth
device can work in linux at least).
Steps to reproduce:
- Connect bluetooth headset
- Wait a few minutes, switch profile
Re
The error is from 5.39 bluez version, it works well if downgrader bluez
to 5.38-1 and restart bluetooth service.
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https://bugs.launchpad.net/bugs/1689435
Title:
bluetoothd
workaround in #16 worked. Thanks @mbirth
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https://bugs.launchpad.net/bugs/1652504
Title:
Recent updates broke Ubuntu on Raspberry Pi 3
Status in flash-kernel package in Ub
It only stop the service if I disable it by bluetooth-manager.
the commands bellow not worked
sudo systemctl stop bluetooth
sudo service bluetooth stop
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Tried with 4.8.0-040800rc2-generic and the problem is still there
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https://bugs.launchpad.net/bugs/1581088
Title:
Middle mouse (wheel-click) button stopped working after up
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