[Bug 1815693] Re: Kubuntu 18.10 Xorg severe memory leak

2019-07-09 Thread David Matějček
I'm still having issues with Xorg memory consumption on 19.04. 
- it is somehow connected with sleep/wakeup of the system
- it is same for nvidia and intel graphic
- it is same whenever I call pm-suspend or close the lid
- uptime does not matter

Nearly every wakeup memory goes from around 150 MB to 300 MB then to
1200, 1800, 3 GB and more. When the system is low on free memory, it
goes little bit back to 2 GB.

I'm using Kubuntu 19.04 on Dell 5587 wth 32 GB RAM.

Maybe ... https://bugreports.qt.io/browse/QTBUG-69429

... uptime does not matter because I'm not opening and closing
applications, the set is always the same - Eclipse, Firefox, Chromium,
Chrome, Thunderbird, Konsole.

Current result of nvidia-smi:

Tue Jul  9 18:37:46 2019   
+-+
| NVIDIA-SMI 418.56   Driver Version: 418.56   CUDA Version: 10.1 |
|---+--+--+
| GPU  NamePersistence-M| Bus-IdDisp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap| Memory-Usage | GPU-Util  Compute M. |
|===+==+==|
|   0  GeForce GTX 106...  Off  | :01:00.0 Off |  N/A |
| N/A   65CP030W /  N/A |   5852MiB /  6078MiB |  7%  Default |
+---+--+--+
   
+-+
| Processes:   GPU Memory |
|  GPU   PID   Type   Process name Usage  |
|=|
|0  1481  G   /usr/lib/xorg/Xorg  5051MiB |
|0  1987  G   /usr/bin/kwin_x11284MiB |
|0  1992  G   /usr/bin/krunner   1MiB |
|0  1994  G   /usr/bin/plasmashell 146MiB |
|0  2083  G   /usr/bin/krusader  2MiB |
|0  2172  G   /usr/bin/amarok6MiB |
|0  2787  G   /usr/bin/systemmonitor 2MiB |
|0  3807  G   ...quest-channel-token=1811997003997927731   327MiB |
|0  8783  G   /usr/lib/firefox/firefox   1MiB |
|0  8907  G   /usr/lib/firefox/firefox   1MiB |
|0  8927  G   /usr/lib/firefox/firefox   1MiB |
|0  8954  G   /usr/lib/firefox/firefox   1MiB |
|0  9039  G   /usr/lib/firefox/firefox   1MiB |
|0  9066  G   /usr/lib/firefox/firefox   1MiB |
+-+

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[Bug 1759836] Re: systemd-udevd consumes 100% of CPU

2018-06-13 Thread David Matějček
I had this problem with NVidia after I disabled nvidia card in BIOS.

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[Bug 1684240] Re: Mouse pointer behaves strangely

2017-08-11 Thread David Matějček
To me helped only unchecking the checkbox "Enable compositor on
startup".

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[Bug 1318007] Re: chromium does not accept keyboard input when ibus is running

2014-06-18 Thread David Matějček
*** This bug is a duplicate of bug 1307648 ***
https://bugs.launchpad.net/bugs/1307648

** This bug is no longer a duplicate of bug 1311480
   Keyboard in Chromium does not work
** This bug has been marked a duplicate of bug 1307648
   chromium 34 from proposed does not take input from keyboard in first entry 
point on several webpages

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[Bug 1311480] Re: Keyboard in Chromium does not work

2014-06-18 Thread David Matějček
*** This bug is a duplicate of bug 1307648 ***
https://bugs.launchpad.net/bugs/1307648

** This bug has been marked a duplicate of bug 1307648
   chromium 34 from proposed does not take input from keyboard in first entry 
point on several webpages

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  Keyboard in Chromium does not work

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[Bug 1307648] Re: chromium 34 from proposed does not take input from keyboard in first entry point on several webpages

2014-06-18 Thread David Matějček
FYI, it seems fixed, but still not in (K)Ubuntu:
https://code.google.com/p/chromium/issues/detail?id=360388


** Bug watch added: code.google.com/p/chromium/issues #360388
   http://code.google.com/p/chromium/issues/detail?id=360388

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[Bug 1241101]

2014-04-16 Thread David Matějček
It seems it is fixed in newer GTK, but after my recent experiences I am
not so optimistic. But after upgrade to 1.3.5 and also GTK 3.10 and
restarting the system Eclipse still did not crash (10 hours yesterday, 5
hours today, switching git branches on massive project, debugging,
refactoring).

Can you try it someone too? (package is big, you need fast connection)
sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get install libgtk-3-0
Download 1.3.5: https://launchpad.net/ubuntu/+source/oxygen-gtk3
Unpack and see instructions in the file INSTALL.

I hope Eclipse will be stable on Kubuntu 14.04 without these experiments
...

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Title:
  Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

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[Bug 1241101] Re: Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

2014-04-15 Thread David Matějček
Yes, today Eclipse crashes again, taskset does not help. :(
This is really very bad, hardly reproducible bug. It seems the faster machine 
and newer JDK and Linux, the more occurences I have ...
Maybe the fastest method to fix it is to dig into the code of GTK ...?

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[Bug 1223181] Re: After upgrading to saucy, eclipse crashes in gtk_tree_view_get_background_area+0x8a while debugging

2014-04-15 Thread David Matějček
** Also affects: gtk via
   https://bugs.kde.org/show_bug.cgi?id=329112
   Importance: Unknown
   Status: Unknown

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[Bug 1241101]

2014-04-15 Thread David Matějček
EDIT: workaround does not help. And one more note: Eclipse crashes
earlier when showing variables in debug mode.

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[Bug 1216188] Re: eog crashed with SIGSEGV in gtk_widget_queue_draw()

2014-04-10 Thread David Matějček
** Bug watch added: Eclipse bugs #419729
   https://bugs.eclipse.org/bugs/show_bug.cgi?id=419729

** Also affects: eclipse via
   https://bugs.eclipse.org/bugs/show_bug.cgi?id=419729
   Importance: Unknown
   Status: Unknown

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  eog crashed with SIGSEGV in gtk_widget_queue_draw()

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[Bug 1241101] Re: Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

2014-04-10 Thread David Matějček
Reproduced also with the JDK6, OpenJDK7, and finally JDK8:
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

Problematic frames occurs in two variants:
1) # C  [libgobject-2.0.so.0+0x31b3c]  g_type_check_instance_is_a+0x3c
2) # C  [libgtk-x11-2.0.so.0+0x24492a]  gtk_widget_queue_draw+0x1a

The Eclipse crashes sometimes after 5 minutes after start, sometimes
after 6 hours, sometimes hangs and crashes after few seconds or even ten
minutes. Always with one of these variants.

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  Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

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[Bug 1216188] Re: eog crashed with SIGSEGV in gtk_widget_queue_draw()

2014-04-10 Thread David Matějček
** No longer affects: eclipse

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  eog crashed with SIGSEGV in gtk_widget_queue_draw()

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[Bug 1216188] Re: eog crashed with SIGSEGV in gtk_widget_queue_draw()

2014-04-10 Thread David Matějček
If the problem is GTK, this is probably the same bug:
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1241101

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[Bug 1241101] Re: Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

2014-04-10 Thread David Matějček
I have an idea, theoretical scenario: isn't it somehow similar problem as with 
the volatile and synchronization in Java?
GTK makes many updates and redrawing at the same time.
Even Eclipse have parallel threads for redrawing.
I got 2core/4thread CPU Intel i5.

What if the GTK tries to redraw something, but the CPU context switching occurs 
and then it has invalid references?
All code then seems correct, but it is not.

I see these crashes for maybe two years (perhaps since Kubuntu 12.10),
some were closed as incomplete, one even as fixed (bug in intel driver),
but this problem is still the same.

Maybe I will try some experiments with the affinity and I will see if it will 
make some difference:
http://karuppuswamy.com/wordpress/2010/09/23/how-to-launch-your-application-in-a-specific-cpu-cpu-affinity-in-linux/

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[Bug 1241101]

2014-04-10 Thread David Matějček
Reproduced also with the JDK6, OpenJDK7, and finally JDK8:
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)

Problematic frames occurs in two variants:
1) # C  [libgobject-2.0.so.0+0x31b3c]  g_type_check_instance_is_a+0x3c
2) # C  [libgtk-x11-2.0.so.0+0x24492a]  gtk_widget_queue_draw+0x1a

The Eclipse crashes sometimes after 5 minutes after start, sometimes
after 6 hours, sometimes hangs and crashes after few seconds or even ten
minutes. Always with one of these variants.

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  Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

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[Bug 1241101] Re: Java crash in libglib-2.0 after upgrade from 13.04 to 13.10

2014-04-10 Thread David Matějček
I use Eclipse Kepler 4.3.2 and this bug occurs more often then ever before!
Eclipse also is not the only application crashing with this bug - today I have 
seen bugreport also for Gimp.

Workaround: 
1) Start the Eclipse
2) find pid of the process
3) taskset -p 0x0001 pid

The problem is something like with volatile and synchronized; with this I used 
two Eclipse instances for 12 hours without a crash!
After restart I forgot to set it again and Eclipse crashed after 5 minutes ...

Now again with taskset after 2 hours no problem.

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[Bug 1241101]

2014-04-10 Thread David Matějček
Workaround: 
1) Start the Eclipse
2) find pid of the process
3) taskset -p 0x0001 pid

The problem is something like with volatile and synchronized; with this I used 
two Eclipse instances for 12 hours without a crash!
After restart I forgot to set it again and Eclipse crashed after 5 minutes ...

Now again with taskset after 2 hours no problem.

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[Bug 238629] Re: [i965] Java plugin causes massive Xorg CPU usage, fixed with XAA (UXA/EXA)

2014-02-21 Thread David Matějček
I don't think that the problem is driver or hardware. It seems the problem is X 
server/GTK implementation.
After the simple change in /etc/X11/xorg.conf I have found here in comments the 
Eclipse had 17 hours uptime with heavy refactoring and then I only turned off 
the computer. Eclipse never before lasted so long and GUI was not so fast.

Option  AccelMethod   xaa

I can't say that the cause is exactly same, but surely helped the same thing.
I don't know who and why thinks that the problem is only with Intel ...?

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  [i965] Java plugin causes massive Xorg CPU usage, fixed with XAA
  (UXA/EXA)

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[Bug 238629] Re: [i965] Java plugin causes massive Xorg CPU usage, fixed with XAA (UXA/EXA)

2014-02-20 Thread David Matějček
It seems that this bug is also cause of the Eclipse 4.x crashes (and high CPU 
load and hanging)
https://bugs.eclipse.org/bugs/show_bug.cgi?id=397291

I have maybe 10 dumps beginning with the following:
#  SIGSEGV (0xb) at pc=0x7fe9bb3dd92a, pid=7396, tid=140643637405440
#
# JRE version: OpenJDK Runtime Environment (7.0_51) (build 1.7.0_51-b00)
# Java VM: OpenJDK 64-Bit Server VM (24.45-b08 mixed mode linux-amd64 
compressed oops)
# Problematic frame:
# C  [libgtk-x11-2.0.so.0+0x24492a]  gtk_widget_queue_draw+0x1a
#

The XAA Option evidently helped.
Firefox did not crash before this change and does not crash even after that.
Eclipse did not crash after this change and is much faster (does not slow down 
after hours of work on the big workspace).

Kubuntu 13.10 64bit, Dell Latitude E6520 with i5 CPU.

** Bug watch added: Eclipse bugs #397291
   https://bugs.eclipse.org/bugs/show_bug.cgi?id=397291

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[Bug 1170911] Re: mount: / is busy error during shutdown (not network-manager)

2013-09-15 Thread David Matějček
*** This bug is a duplicate of bug 1181789 ***
https://bugs.launchpad.net/bugs/1181789

The last message from me - now everything works.
After all steps before finally I did this:
1) Removed the TV card Winfast DTV2000H, that was unused maybe two years and I 
forgot it is there :-) . Seems that something between the Linux and the card 
does not handle the ACPI events correctly.
Then I could sleep the computer, but not wake up - sometimes absolutly, 
sometimes it started into KDE login screen, could move with mouse, but could 
not write anything.
2) Upgraded kernel, now uname -a writes this:
Linux dmatej 3.8.0-31-generic #46-Ubuntu SMP Tue Sep 10 20:03:44 UTC 2013 
x86_64 x86_64 x86_64 GNU/Linux
- then I could switch to another session via CTRL+ALT+F1, kill KDE and start 
again - sometimes it worked after three cycles of killing.
3) Installed the nvidia-current-updates package again (3.0.4). It is three days 
and everything works as I want. Happyend :-)

I think in my case problems was caused by several reasons, somehow
related. I wrote this only to report that my problem is solved and how.

This issue is probably duplicate as the previus comment says. See
https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1181789

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  mount: / is busy error during shutdown (not network-manager)

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[Bug 980320] Re: Skype silently crashes on Ubuntu 64bits

2013-09-09 Thread David Matějček
Kubuntu 13.04 64bit, noveau driver, skype 4.2.0.11.
- skype crashes KDE.
With the LD_PRELOAD customized, skype runs, but after first click on the GUI 
crashes the KDE again.

One curiosity - Skype works started with ssh -X from another computer
running Kubuntu 13.04. :D

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[Bug 1170911] Re: mount: / is busy error during shutdown (not network-manager)

2013-09-06 Thread David Matějček
... but it worked only twice, I don't understand why. Next three
attempts ended as usual: busy and hang :(

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  mount: / is busy error during shutdown (not network-manager)

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[Bug 1170911] Re: mount: / is busy error during shutdown (not network-manager)

2013-09-05 Thread David Matějček
1) Today I have changed the file /etc/default/grub:
GRUB_CMDLINE_LINUX_DEFAULT=acpi=force reboot=acpi
2) run update-grub2
Now I can sleep and shutdown! :-) :-) :-)
The error message / is busy is still there, but computer turns off right 
after that.

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  mount: / is busy error during shutdown (not network-manager)

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[Bug 1170911] Re: mount: / is busy error during shutdown (not network-manager)

2013-09-04 Thread David Matějček
My experiments:
0) With 12.10 everything worked perfectly.
1) 13.04, upgraded from 12.10. Since then I cannot sleep, hibernate, or 
shutdown my computer. After some hard resets system starts without the 
X-server, sometimes with.
2) Uninstalled modem-manager, no change (except no error message about that).
3) Since I changed nvidia-304-updates to nvidia-313-updates, computer was 
turned off properly, but only for the first time. 310-updates - same problem.
4) Clean install of 13.04 on another partition, no nvidia driver. Tried to 
suspend(sleep), it worked, but after wake up the screen was only blank and I 
had to do hard reset again.
5) Now I am on my old partition and I have no sound. It seems there is 
something wrong not in nvidia, but in kernel and it is somehow related to 
drivers (nvidia, modem, sound, hdd ...?). And it is not fully repeatable, maybe 
some race condition? Is / unmounted really after all unneeded applications and 
drivers are stopped?

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[Bug 1170911] Re: mount: / is busy error during shutdown (not network-manager)

2013-09-04 Thread David Matějček
I have uninstalled nvidia driver, but the problem is same with some small 
changes:
- suspend and hibernate does not hang, but ends up only in login screen
- shutdown hangs again with  mount: / is busy, but not always. Some attempts 
were successful.

Now I see also this message when trying to suspend the computer and than 
shutdown:
udevd timeout: killing /sbin/modprobe -bv pci
This is reported here: 
https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1092102

Maybe this bug depends on some ACPI event?

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Title:
  mount: / is busy error during shutdown (not network-manager)

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[Bug 1178182] Re: amarok 2.7.0 requires additional plugin: ID3 tag demuxer

2013-07-07 Thread David Matějček
Affects also 2.6.0 on some files (about 1%).

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Title:
  amarok 2.7.0 requires additional plugin: ID3 tag demuxer

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[Bug 1178182] Re: amarok 2.7.0 requires additional plugin: ID3 tag demuxer

2013-07-07 Thread David Matějček
And EasyTag cannot parse MP3 headers (bitrate, frequency, etc.) too, but other 
headers (Author, Title, etc.) can.
Also VLC and Kaffeine cannot play it.
Even Irfanview under Windows cannot.

The file is in cca 200kbps VBR MPEG1 Layer3, but it seems it was always
broken (I found the song on youtube and did not know it). Old versions
of Amarok silently skipped this file, so I did not notice it, but now
reports this message, that is not correct.

It should say that the file simply cannot be played because it does not
contain any stream.

I will check later if the same situation is with other files ...

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Title:
  amarok 2.7.0 requires additional plugin: ID3 tag demuxer

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[Bug 741200] Re: kded4 hangs when wlan toggled

2011-05-09 Thread David Matějček
The same when my mobile connection goes down. I use the 64bit Natty.

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Title:
  kded4 hangs when wlan toggled

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[Bug 334122] Re: Mobile broadband connections fail to connect

2011-05-09 Thread David Matějček
Natty is the first distro where NM works with Huawei K2540 ... nearly well.
1) I have usb-storage module on blacklist, because when it access the USB 
device first, usbserial module cannot. If it access it as the second, the 
connection  is interrupted :-( . Historical occurence on my computers ...
Hardy - sometimes;  I had to restart the system after that. Used wvdial or kppp.
Lucid - sometimes; I had to pull the USB and connect it again. Used wvdial or 
kppp.
Maverick - often; usb-storage blacklisted, then it was better, but sometimes I 
had to pull USB as well (driver state? hardware error?)
Natty - everytime if usb-storage not blacklisted; Using NM - and wvdial after 
NM connection interrupted.

2) Sometimes the connection is interrupted - I don't know if it is
device error or driver error or server error, but then the kded4 hangs
(see https://bugs.launchpad.net/ubuntu/+source/plasma-widget-
networkmanagement/+bug/741200 ) and I have to use my old friend wvdial
to become online again - and even sometimes reconnect the USB device.

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Title:
  Mobile broadband connections fail to connect

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