Same problem with Ubuntu MATE 18.04:
[2.944434] clocksource: Switched to clocksource tsc
[ 34.522308] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts:
(null)
$ uname -r
4.15.0-20-generic
My motherboard:
producto: P7H55
fabricante: ASUSTeK Computer INC.
Also
Same problem with another machine (completely different hardware) after
upgrading to Kubuntu 18.04.
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Title:
Ubuntu 14.04 Beta 2
Same problem with Linux 4.13.0-38-generic kernel under Kubuntu 18.04
beta.
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Title:
Ubuntu 14.04 Beta 2 stuck at "Switched to
Same problem under Kubuntu 18.04 beta (Linux 4.15.0-15-generic) with an
ASUS H81M-C motherboard:
[2.812149] clocksource: Switched to clocksource tsc
[ 34.133640] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts:
(null)
But "tpm_tis.force=1" seems to have no effect...
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This bug effect me on ubuntu 16.04-4.4.0-36-generic on Asus N55
The solution adding kernel parameter "tpm_tis.force=1" decreased the
clocksource from 9s to 4s :
[3.235387] clocksource: Switched to clocksource tsc
[7.360005] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts:
#1602238 i have submitted bug #1602238 relating this issue under lts-
vivid
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Title:
Ubuntu 14.04 Beta 2 stuck at "Switched to
This still appears to be a BUG we faced the issue with 3.19 4.2 kernel
eventually fixed in 3.16.0-76-generic
not very clear on why the error throws up with the recent releases
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My custom build computer boots perfectly via ELILO EFI bootloader. But I
connected a second SSD (Samsung 256GB) to my PC and I am experiencing
the same boot problem. Hangs at:
[2.399020] Switched to clocksource tsc
Kernel parameters that are being passed:
reboot=a,w
Any workarounds?
AH almost forgot, if anyone care here is my output (before editing):
[0.00] Command line: BOOT_IMAGE=/vmlinuz-3.17.0-031700rc1-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
[0.00] DMI: Hewlett-Packard Falco, BIOS 08/13/2014
[2.879706]
Wow, Thank you @Andrea for the tip. Such a complete newbie mistake, but
that's what I was missing. Unbelievable. No more bootup delay!
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Same here, I am running the current version of Xubuntu 15.04 on an HP
Chromebook 14 Falco, and the (50s) delay disappears when using the
tpm_tis.force=1 option in grub.
I wonder if this has to do with loading Ubuntu from coreboot, since the setting
is related to Trusted Platform management
@Andrew have you updated the grub after edit? May sound obvious but to
me, as a noob, i just realized after a while that i MUST (as seen on the
grub itslef, first line: # If you change this file, run 'update-grub'
afterwards to update) give in terminal
sudo update-grub
So here (chromebook 14
I'm using an Acer C720P with Ubuntu Gnome 14.10 (with Gnome updated to
3.14 from PPA) and mainstream kernel 3.18 installed, getting this way
touchpad and touchscreen working.
I have been experiencing also a long delay durin boot time, as described
here.
After setting:
I am also using an Acer C720 Chromebook.
However, I have Ubuntu 14.10, kernel 3.17.1 installed.
The 'tpm_tis.force=1' trick did not work for me.
Still looking for a solution.
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GRUB_CMDLINE_LINUX_DEFAULT=tpm_tis.force=1 solved it on my C720
with 3.13.0-36-generic kernel
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Title:
Ubuntu 14.04 Beta 2 stuck at
oops. king greetings?
kind greetings
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Title:
Ubuntu 14.04 Beta 2 stuck at Switched to clocksource tsc when
booting up, then
Thanks Jackson, for help on replacing the kernel .
My c720 now works perfect using:
- kernel 3.17 rc 5 (supports c720 touchpad).
- plus the adapted GRUB_CMDLINE_LINUX_DEFAULT=tpm_tis.force=1
in /etc/default/grub(no more boot delay).
Now I am looking for an easy way to 'lock the kernel',
You shouldn't have needed to replace the kernel, the workaround I posted
works with the normal kernels from 14.04. But anyway it doesn't do any
harm, and you don't need to worry about 'locking' the kernel - apt-get
won't replace your kernel 3.17 package with any of the ones from 14.04
because
Unfortunately, none of the workarounds works on my system. On top of
that, the boot stops at Switched to clocksource tsc forever. I can't
even boot a Live-Cd.
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I just wanted to confirm that Tim's workaround/fix of changing the boot
command line in /etc/default/grub works wonderfully!
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Title:
I have similar bug, but after another line:
...
[5.368667] random: nonblocking pool is initialized
[ 31.204589] Adding 2098172k swap on /dev/sda6. Priority:-1 extents:1
across:2098172k FS
...
Full log:
http://pastebin.com/raw.php?i=QbAd6LCT
System: Asus X550VB Notebook
(It's also
*EDIT*
im new to fourms... so please excuse my errors... i just had a ubuntu one
acount so i signed in just to tell
Hans Zaaijer (h-l-zaaijer) in case you didnt figure it out yet...(i know im 4
months late...)(i love periods)
Hello all,
Is it possible to describe step #1 in Suthars solution
im new to fourms... so please excuse my errors... i just had a ubuntu one
acount so i signed in just to tell
Hans Zaaijer (h-l-zaaijer) in case you didnt figure it out yet...(i know im 4
months late...)(i love periods)
Hello all,
Is it possible to describe step #1 in Suthars solution (=
@Jackson
There's no need to downgrade the kernel anymore. The workaround, which I use on
my C720 and it works is:
1. Open the file /etc/default/grub as root in a text editor with: gksu gedit
/etc/default/grub
2. change the line: GRUB_CMDLINE_LINUX_DEFAULT=tpm_tis.force=1 and save
changes
3.
I can also confirm that setting
GRUB_CMDLINE_LINUX_DEFAULT=tpm_tis.force=1 and running sudo update-
grub fixed this problem on an Acer C720 Chromebook, running the default
kernel that installs with Ubuntu 14.04.
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Hi,
using the boot parameter 'tpm_tis.force=1' described by Alois works on
my LENOVO ThinkCentre system (Xubuntu 14.04 Kernel 3.13.0-29-generic) as
well.
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Hi,
Setting grub boot parameter:
GRUB_CMDLINE_LINUX_DEFAULT=tpm_tis.force=1
Solve this issue on the Toshiba Chromebook and kernel 3.15 patched for
touchpad to work.
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have the same problem on hp-dv5-1030el - 4gb ram - lubuntu 14.04 -
kernel 3.13.0-29-generic
here my log, maybe they are usefull
dmesg
[code]
[0.00] Linux version 3.13.0-29-generic (buildd@toyol) (gcc version
4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014
Hi,
I have this issue on Toshiba Chromebook CB30. I am using the 3.15 linux kernel
with some patches for the trackpad.
With linux kernel 3.14 this issue is gone but my trackpad does not work.
Do you have any ideas which can cause that ? I would like to take a look
and find the difference
Dear all,
Would it be possible to describe step #1 in Suthars solution (= downgrading
the kernel) in more detail,
(step by step) for this beginner?
How do I download and install 3 new kernel files exactly?
(Steps 2 etc I can understand, only step #1 is too abstract).
Thanks in advance, I really
Hello all,
Is it possible to describe step #1 in Suthars solution (= downgrading the
kernel) in more detail,
(step by step) for this beginner?
How do I download and install 3 new kernel files exactly?
(Steps 2 etc I can understand, only step #1 is too abstract).
Thanks in advance, I really want
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
Ubuntu 14.04 Beta 2 stuck at Switched to clocksource tsc
** Package changed: ubuntu = linux-meta (Ubuntu)
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Title:
Ubuntu 14.04 Beta 2 stuck at Switched to clocksource tsc when
** Package changed: linux-meta (Ubuntu) = linux (Ubuntu)
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Title:
Ubuntu 14.04 Beta 2 stuck at Switched to clocksource tsc when
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