I can confirm that 5.18.13 kernel has no flickers and no GRUB workaround
is needed.
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https://bugs.launchpad.net/bugs/1958191
Title:
[i915] Screen flickering in Ubuntu
Peter, I don't think it's a fix, but only a workaround that limits two
important power management functionalities (cpu cstates and gpu display
cstates). I hope and believe they're still working on finding a real fix
for the bug.
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In file /etc/default/grub I added to parameter GRUB_CMDLINE_LINUX_DEFAULT:
i915.enable_dc=0
intel_idle.max_cstate=2
updated grub and now I'm flicker free for a few days.
The last kernel without the flickering for me was the kernel that
shipped with 21.10
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After a flickering occurs the following message appears on the Log:
i915 :00:02.0: [drm] *ERROR* CPU pipe A FIFO underrun
kernel device: +pci::00:02.0
priority: 3
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Yes, I did.
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https://bugs.launchpad.net/bugs/1970426
Title:
[i915] screen suddenly starts flickering after update
Status in linux package in Ubuntu:
Confirmed
Bug
I can confirm that neither of the following fixed the bug:
GRUB Param `i915.enable_psr=0` did not fix
`intel_idle.max_cstate=4` did not fix
`intel_idle.max_cstate=0`did not fix
x11 session did not fix
Also, I noticed that when the screen starts flickering it only stops if
I move the cursor, if I
Maybe helps: The touchpad identifies under Windows as
"VEN_ELAN_0633".
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https://bugs.launchpad.net/bugs/1873677
Title:
Lenovo Ideapad S145 - Touchpad not recognized at all
I now tried installing the latest kernel 5.6.7 from
https://kernel.ubuntu.com/~kernel-ppa/mainline/ and the problem still
exists.
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Disabling Thunderbolt Security in the BIOS did not help.
My BIOS has no Kernel DMA protection.
Any other ideas?
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https://bugs.launchpad.net/bugs/1766076
Title:
USB over
Public bug reported:
Touchpad not working and does not show in /proc/bus/input/devices
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-24-generic 5.4.0-24.28
ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30
Uname: Linux 5.4.0-24-generic x86_64
ApportVersion:
I have the same issue with a i-tec displaylink docking station. My OS is
the ubuntu based linux mint 19.2 with kernel version 5.3.0-46-generic.
Here is the output from dmesg:
2020-04-09T08:49:10,389752+0200 evdi: [D] evdi_detect:92 (dev=2) poll connector
state: connected
Following logs show that your Ubuntu definitely thinks your laptop is
equipped with an ELAN touchpad (contrary to Windows opinion):
-
cat /sys/bus/acpi/devices/{ELAN,SYNA,CRQ}*/modalias
acpi:ELAN0632:PNP0C50:
Somehow you've got two modules to be loaded simultaneously:
elan_i2c 40960 0
[...]
synaptics_i2c 20480 0
dmesg mentions ELAN0632:
[9.706424] i2c_hid i2c-ELAN0632:00: i2c-ELAN0632:00 supply vdd not found,
using dummy regulator
[9.706437] i2c_hid i2c-ELAN0632:00:
... oh, sorry, I found the link to a full log file...
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Title:
Lenovo ThinkBook 14-IML Touchpad not showing up in
Posting logs in the comment window is of little use as they are truncated.
Please consider using "Add attachment or patch" link below the window to share
log files.
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...and, by the way, which kernel version do you run?
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https://bugs.launchpad.net/bugs/1853277
Title:
Lenovo ThinkBook 14-IML Touchpad not showing up in
@pavelcheto (pavelcheto),
does you touchpad operate in basic mode (like a mouse, without
two-finger-scrolling and other extended functions) ?
Would you mind sharing the output of at least:
dmesg
cat /proc/bus/input/devices
lsmod
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@ChavTha Chau (chavtha),
thank you for information. I confirm: BIOS update CJCN26WW solves the issue.
Actual vendor change to ACPI table is:
- Name (_HID, "") // _HID: Hardware ID
+ Name (_HID, "ELAN0632") // _HID: Hardware ID
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I informed Lenovo support of the discussed issue on Feb,04 2020.
Since then I discovered an update [1] (CJCN25WW), but it still doesn't solve
the issue.
It's changelog said:
"Summary of changes
==
General Information:
CJCN25WW:
1. Update EC to CJEC27WW
2. Lenovo diagnostic of
Although I'm using OS ALT but I performed pretty much similar steps to
patch the ACPI DSDT table.
> In my case the output dsdt.dsl file contained some invalid error
output lines [...]
I also got multiple error messages which I commented for compile to
succeed
/*
*Firmware Error (ACPI): Could
Managed to get the touchpad operate on 15-IML applying the following:
Initially touchpad didn't operate at all under Linux.
0) UEFI firmware update to CJCN24WW revision
(https://pcsupport.lenovo.com/ru/ru/products/laptops-and-netbooks
/thinkbook-series/thinkbook-15-iml/downloads/driver-
Oh, I just realized the flow stops when VLC stops when I stop VLC, and
it doesn't appear with other video players, so it's more a VLC problem,
and a workaround is simply to remove VLC and use a non buggy player
instead.
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Same here. My syslog fills up of
"Thunar.desktop[3491]: [7f0ee436b700] vdpau_chroma filter error: video
mixer features failure: An invalid handle value was provided."
lines at a rate of hundreds of MB per minute, until the system partition is
entirely full.
If I do "sudo truncate -s 0
Public bug reported:
Version.log && lspci-vnvn.log
https://drive.google.com/drive/folders/1RDfz1ozwAFTP7AuHO8_U16zuZAVPKRDS?usp=sharing
Ubuntu 19.04
Problem:
When i try to shudown my pc. I have black screen and this errors
INFO: task systemd-shutdow:1 blocked for more than 120 seconds
Not
The upstream kernels are only available for x86 /x86_64. The Powermac G5
is equipped with a 64 bit PowerPC CPU.
I cannot test upstream because I cannot find a daily cdimage for PPC64.
This is not an AMD Macintosh but a PowerMac (iMac G5).
** Changed in: linux (Ubuntu)
Status: Incomplete =
Exactly the same problem with:
Linux imac 3.2.0-61-powerpc64-smp #93-Ubuntu SMP Fri May 2 23:01:20 UTC
2014 ppc64 ppc64 ppc64 GNU/Linux
Still on 12.04 LTS
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After installing bw-fwcutter, the system complains that the correct
firmware cannot be installed.
After installing firmware-b43-installer, I get the following:
[ 632.253678] cfg80211: Calling CRDA to update world regulatory domain
[ 632.364069] cfg80211: World regulatory domain updated:
[
Please note that I am now back on the 12.04 LTS current kernel, as far
as I can tell. The uname information is above.
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https://bugs.launchpad.net/bugs/1219368
Title:
I was planning on reinstalling, and I left my iMac on while I went and
got install media, and it decided to boot all the way up.
With the installed kernel, I'm getting:
[ 210.709352] b43-phy0: Loading firmware version 508.1084 (2009-01-14 01:32:01)
[ 210.783377] ADDRCONF(NETDEV_UP): wlan0:
My systen doesn't use GRUB, it uses yaboot, and it doesn't obviously
offer a previous kernel.
I'm pretty sure I tried both of the kernels it did offer when I tried to
boot, and both failed.
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Please note that before I installed your kernel, my system did boot just
fine, and was running the most recent stock kernel as of the opening
date of this bug (2013-09-01). In fact, upgrading to that kernel is
what killed my wireless, which worked fine before I did an apt-get dist-
upgrade.
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My system no longer boots to a command line, so no, I cannot. I'll have
to reinstall in order to keep testing this.
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Title:
I just contacted the kernel-team for advice on how to build a new
kernel.
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https://bugs.launchpad.net/bugs/1219368
Title:
14e4:4320 Airport Extreme (Broadcom BCM4306) not
When I use my daily CD of Saucy Salamander from 3 days ago, it crashes
the kernel (I get an oops).
See attached log.
Process:
Boot lubuntu live CD.
apt-get install firmware-b43-installer
rmmod b43
modprobe -v b43
Notwithstanding, jwiedmann's comment in
@penalvch: I finally found a daily build for PPC at
http://cdimage.ubuntu.com/lubuntu/daily-live/current/ and have
downloaded it but not yet tested it.
@jwiedmann: Do I need to do anything to get an SRU? That wiki link
pointed me to https://wiki.ubuntu.com/KernelTeam/KernelUpdates which
implies
I cannot test upstream because I cannot find a daily cdimage for PPC64.
This is not an AMD Macintosh but a PowerMac (iMac G5).
** Tags removed: needs-upstream-testing
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Tags removed: needs-saucy-test
** Tags added:
The upstream kernels are only available for x86 /x86_64. The Powermac G5
is equipped with a 64 bit PowerPC CPU.
** Tags removed: needs-upstream-testing powerpc
** Tags added: powerpckernel-unable-to-test-upstream
** Tags removed: powerpckernel-unable-to-test-upstream
** Tags added:
Public bug reported:
wlan0 worked approximately 3 months ago, when I last booted this system,
but upon updating and rebooting, my wireless NIC stopped working.
This is essentially identical to 951687, except that:
- it is still a problem, and
- Christopher M. Penalver told me to open a new bug
The relevant snippets from dmesg are, from dmesg | grep bcm
[4.546281] b43-pci-bridge 0001:01:01.0: enabling device (0004 - 0006)
[ 22.477259] b43-phy0: Broadcom 4306 WLAN found (core revision 5)
[ 22.572945] Registered led device: b43-phy0::tx
[ 22.573055] Registered led device:
This is still happening to me after an update minutes ago:
Linux imac 3.2.0-52-powerpc64-smp #78-Ubuntu SMP Fri Jul 26 18:04:26 UTC
2013 ppc64 ppc64 ppc64 GNU/Linux
[ 422.168066] b43-phy0: Loading firmware version 508.1084 (2009-01-14 01:32:01)
[ 422.224204] b43-pci-bridge 0001:01:01.0:
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