The bug is still present with the kernel linux-image-4.4.0-65-generic.
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https://bugs.launchpad.net/bugs/1667323
Title:
Backlight control does not work and there are no
Public bug reported:
The issue ocours in a system upgrade, it's al I can say right now,
sorry.
ProblemType: Package
DistroRelease: Ubuntu 16.10
Package: linux-firmware 1.161.1
ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
Uname: Linux 4.8.0-22-generic x86_64
ApportVersion:
Upstream kernel v4.10 works.
** Tags added: kernel-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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I tried to boot to linux-image-4.4.0-62-generic but I could not get past
the login screen. So I reinstalled the linux-image-4.4.0-62-generic and
run update-grub. Then I could boot to it (linux-image-4.4.0-62-generic)
and the brightness is working again. I think it is a kernel regression.
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You
Neither:
GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi="
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Title:
Backlight control does not work and there are no entries in
Neither:
GRUB_CMDLINE_LINUX_DEFAULT="video.use_bios_initial_backlight=0"
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Title:
Backlight control does not work and there are no
Changing the grub line
GRUB_CMDLINE_LINUX_DEFAULT=""
to
GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor"
did not work.
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Title:
** Attachment added: "ssdt2.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825242/+files/ssdt2.dat
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** Attachment added: "ssdt1.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825241/+files/ssdt1.dat
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** Attachment added: "sudo dmidecode > dmidecode.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825249/+files/dmidecode.log
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** Attachment added: "grep -r . /proc/acpi > acpi"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825239/+files/acpi
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** Attachment added: "acpixtract acpidump.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825240/+files/acpidump.txt
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** Attachment added: "ssdt3.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825243/+files/ssdt3.dat
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** Attachment added: "ssdt4.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825244/+files/ssdt4.dat
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** Attachment added: "dsdt.dsl"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825246/+files/dsdt.dsl
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Public bug reported:
It was working fine until today.
The folder /sys/class/backlight/ use to have "acpi_video0/brightness", but now
is empty.
I am using Nvidia Proprietary driver 340.101 (proprietary, tested). The problem
persists even with the 304 driver.
ProblemType: Bug
DistroRelease:
** Attachment added: "sudo fwts > fwts"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825247/+files/fwts
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** Attachment added: "ssdt5.dat"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825245/+files/ssdt5.dat
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** Attachment added: "sudo fwts method > fwts_method"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1667323/+attachment/4825248/+files/fwts_method
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I'm having a similar issue with a Dell XPS 13 9360.
I'm running Gentoo and kernel 4.9.0.
COLD booting the laptop fixed it.
After the cold boot the following line reappeared in the lspci command:
00:1f.3 Audio device: Intel Corporation Device 9d71 (rev 21)
Bugs looking similar had been referenced
I forgot to answer here, but I tested the latest kernel and the problem remains.
4.8.0-040800rc8-generic
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https://bugs.launchpad.net/bugs/1614496
Title:
Computer doesn't
** Tags added: kernel-bug-exists-upstream
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Title:
Computer doesn't fully shut down
Status in linux package in Ubuntu:
Incomplete
Joseph, it's been a while now since I tested the kernel you asked but
the problem has not been solved. I still get the same problem.
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Public bug reported:
Sometimes when I turn off the computer it doesn't fully shut down. The
splash screen is displayed, then disappears but the lights and fan keep
turned on. Then if I don't notice it, the next day I have no battery
left.
My version is Ubuntu 4.4.0-34.53-generic 4.4.15
** Attachment added: "version.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1614496/+attachment/4723344/+files/version.log
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This bug is also discussed on the freedesktop bug tracker:
https://bugs.freedesktop.org/show_bug.cgi?id=88919
It seems to persist in kernel 4.3.
** Bug watch added: freedesktop.org Bugzilla #88919
https://bugs.freedesktop.org/show_bug.cgi?id=88919
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Trying a 14.04 netboot today still fails the same way.
I had to do this to allow the installation to continue:
- switch to the 2nd console (alt+f2)
- press enter to get a command prompt
- type these commands:
chroot /target
rm /initrd.img*
dpkg --configure -a # it runs the
Changing my netboot preseed configuration from "d-i pkgsel/upgrade
select full-upgrade" to "d-i pkgsel/upgrade select none" was enough to
get around this problem.
Hopefully the installation process still apply the security updates. It
seems to do it later in time so it's probably why it doesn't
@joao-pimentel-ferreira read the previous comment (#73)
Error still present in 15.10
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https://bugs.launchpad.net/bugs/214786
Title:
Apple USB ISO keyboard has incorrectly
I am one of the victims of the bug described above.
In fact, my neigbour is the victim: Ubuntu destroyed her Windows partition.
I was trying to help her.
That is more than a reason to turn people away from Linux.
But what is written here above is another reason.
It is perfectly incomprehensible.
It sounds as this bug was fixed in Kernel 3.8.1.
Use System>Administration>Synaptic and install
linux-image-3.8.1-??-generic
linux-headers-3.8.1-??-generic
reboot and make sure this kernel is running
** Description changed:
+ Update: Correction:
+
+ It sounds as this bug was fixed in Kernel
Are there any news about this issue? I can still observe it with the
newest updates for 14.04.03 (3.16.0-45-generic). Switching to the
greeter does not work for me as well but switching to tty and replugging
the screen seems to do it. Is it probably possible to disable the
counter for too many
I get the same with HP Elitebook 840, Ubuntu 14.04.02, kernel
3.13.0-52-generic. Each time I plug in the VGA cable of my new Asus screen (no
fitting HDMI cable at home) there is a
[drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up
message in syslog and it is not detected.
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Last week it was still working with a data projector so I do not know
what happened. I can provide more data if requested. Is someone working
on this bug?
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I searched but I only found an error with different symptoms but the same log
message:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1301398
As it claims that it was fixed in 3.15, I installed 3.16.0-37-generic from
Utopic and voilà: It works without problems and error
Yes, this is still an issue with 14.04 server.
I have the same problem.
Here what dmesg | tail says:
[ 201.820039] scsi 2:0:0:0: megasas: RESET cmd=12 retries=0
[ 201.820049] megasas: [ 0]waiting for 1 commands to complete
[ 202.824087] megaraid_sas: FW detected to be in faultstate, restarting
Well, an addition:
it seems to work with kernel parameter iommu=soft
Thanks for that tipp, Jaume.
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https://bugs.launchpad.net/bugs/343749
Title:
LSI SAS 1078 not
Hi all, this bug is affecting me too on a Asus X550C, tried the workaround by
Hans de Goede wapf=4 and everything is smooth now.
As requested here is the result of cat /sys/class/dmi/id/product_name:
X550CC
Hope this is fixed soon, ty for all the anwsers.
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I had this issue with an GA-970A-D3P motherboard, chipset is AMD 970/AMD
SB 950.
I set IOMMU controller = Enable on BIOS, now I can boot from my USB
stick with no problems...
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I can consistently reproduce the *ERROR* Hangcheck timer elapsed... GPU hung
message in the following conditions: using the new Google Maps interface with
Chrome and WebGL hardware acceleration enabled.
After a few seconds navigating in the Maps interface, the browser crashes and
Unity freezes.
Same problem on my Dell XPS 15. The interesting thing is that it happened while
navigating Google Maps in Chrome.
Switched to a terminal using CTRL+ALT+F1 and back. When switched back, the
interface responded for a few seconds, and hanged again. Before hanging again,
Chrome was able to show the
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