Xfce4 Desktop getting stuck (not responding)

javatechnical · 2016-08-07 15:44:40

The Xfce4 desktop is not responding all of a sudden. This is happening every day. The keyboard, mouse both are getting stuck. Neither does the mouse pointer moves nor does the keyboard work.

But, when an application is running currently, say a Music player playing a playlist it automatically plays the next file. The applications are running well.

How to get out of this problem? Is it a bug? Tried,

Ctrl+Alt+F1
xfwm4 --replace
systemctl restart mdm

But still, didn't work. In the above, when

xfwm4 --replace

is executed, there is a warning Cannot open display
So, tried using normal terminal (Ctrl+Alt+T), and

There there is an error called .gtk-rc-2.0:1:error: Unexpected character '\342'

For this, I replaced the char with normal "", so no error.

But, after thar when the xfwm4 --replace exected from normal terminal, then..

Waiting for current window manager (Xfwm4) on screen :0.0 to exit: Done

and it is waiting and waiting but no result.

----------------------------------------------------------------------------------------------------------------------------------------------
Here is system info..

System: Host: jtech Kernel: 4.4.0-21-generic i686 (32 bit gcc: 5.3.1) Desktop: Xfce 4.12.3 (Gtk 2.24.28)
Distro: Linux Mint 18 Sarah
Machine: System: p
P\$ u 
product: D$0@P\$ȭ D$ 
v: 
Mobo: 8 model:   D$L8 v: 
j\$5 
Bios: Intel v: NL94510J.86A.0025.2008.0107.1543 date: 01/07/2008
CPU: Dual core Intel Pentium Dual E2180 (-MCP-) cache: 1024 KB
flags: (lm nx pae sse sse2 sse3 ssse3) bmips: 7980
clock speeds: max: 2000 MHz 1: 1600 MHz 2: 1600 MHz
Graphics: Card: Intel 82945G/GZ Integrated Graphics Controller bus-ID: 00:02.0
Display Server: X.Org 1.18.3 drivers: intel (unloaded: fbdev,vesa) Resolution: 1024x768@85.00hz
GLX Renderer: Mesa DRI Intel 945G x86/MMX/SSE2 GLX Version: 1.4 Mesa 11.2.0 Direct Rendering: Yes
Audio: Card Intel NM10/ICH7 Family High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture v: k4.4.0-21-generic
Network: Card: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: 1000 bus-ID: 02:00.0
IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: HDD Total Size: 160.0GB (29.6% used) ID-1: /dev/sda model: ST3160215AS size: 160.0GB
Partition: ID-1: / size: 28G used: 4.7G (18%) fs: ext4 dev: /dev/sda7
ID-2: /var size: 9.1G used: 944M (11%) fs: ext4 dev: /dev/sda6
ID-3: /home size: 107G used: 36G (36%) fs: ext4 dev: /dev/sda8
ID-4: /boot size: 453M used: 57M (14%) fs: ext4 dev: /dev/sda1
ID-5: swap-1 size: 3.00GB used: 0.02GB (1%) fs: swap dev: /dev/sda5
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 68.0C mobo: N/A
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 202 Uptime: 1:15 Memory: 609.9/2003.6MB Init: systemd runlevel: 5 Gcc sys: 5.4.0
Client: Shell (bash 4.3.421) inxi: 2.2.35

Last edited by javatechnical (2016-08-07 16:18:31)

ToZ · 2016-08-07 18:39:21

Hello and welcome.

It sounds like your X Window environment is hung. Are you doing the same thing when it happens (i.e. do you know what might cause it, like an action on your part or a series of events)?

Can you also try creating a second user account and login with that account. See it the same happens under the second account. If not, it might indicate something is wrong with your profile.

As for your other questions, you can't run xfwm4 in a console (Ctr+Alt+F1) because it needs an XWindows display to work. And when you run it in the terminal, the "Done" indicates that it has been restarted.

You might also want to review your Xorg.0.log file to see if any error messages are present when this happens.

javatechnical · 2016-08-08 14:36:46

There are no specific events that can be mentioned. It seems to get hung without any reason, all of sudden, even when no action is being performed through the mouse or keyboard.

Does a reinstall do good? Is it due to the theme. After the above theme file is corrected, there was no hung till date. Will see some days, if it occurs then will post the Xorg.0.log file

javatechnical · 2016-08-13 06:13:15

ToZ wrote:

Hello and welcome.
It sounds like your X Window environment is hung. Are you doing the same thing when it happens (i.e. do you know what might cause it, like an action on your part or a series of events)?
Can you also try creating a second user account and login with that account. See it the same happens under the second account. If not, it might indicate something is wrong with your profile.
As for your other questions, you can't run xfwm4 in a console (Ctr+Alt+F1) because it needs an XWindows display to work. And when you run it in the terminal, the "Done" indicates that it has been restarted.
You might also want to review your Xorg.0.log file to see if any error messages are present when this happens.

Here is the Xorg.0.log, this time it got stuck. when it got stuck, I rebooted the system and then this is the log file that was after reboot.
This time, the stuck happened in a different way, the mouse is able to move but not able to click anything, not able to type anything, even the hover effect on the panel items also didn't fire any event.

Here is the /var/log/Xorg.0.log file. http://pastebin.com/SsPqTYpE.

ToZ · 2016-08-13 11:28:39

javatechnical wrote:

Here is the Xorg.0.log, this time it got stuck. when it got stuck, I rebooted the system and then this is the log file that was after reboot.

When you restart X, it copies over its old log file to Xorg.0.log.old and starts a new one. The "old" file is the one that might have some info about the hangup.

Also check your ~/.cache/upstart/startxfce4.log file, I think it might also get renamed to *.old or *.0/1 on reboot.

javatechnical · 2016-08-19 06:23:34

ToZ wrote:

When you restart X, it copies over its old log file to Xorg.0.log.old and starts a new one. The "old" file is the one that might have some info about the hangup.
Also check your ~/.cache/upstart/startxfce4.log file, I think it might also get renamed to *.old or *.0/1 on reboot.

Here is x.org.old file (after rebooting)
http://dpaste.com/3904WNC

Here is startxfce4.log file (after rebooting)
http://dpaste.com/3TPCNDE

Last edited by javatechnical (2016-08-19 06:40:59)

ToZ · 2016-08-19 13:12:13

From your Xorg.0.log.old file:

(EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.

Your Xserver is crashing most probably because of an issue with your video card (not Xfce related).

A google search on that string brings up a number of hits, bug reports and suggested fixes. A common suggestion seems to be to switch the video card acceleration method away from SNA to EXA (or UXA).

javatechnical · 2016-08-19 15:13:16

ToZ wrote:

A google search on that string brings up a number of hits, bug reports and suggested fixes. A common suggestion seems to be to switch the video card acceleration method away from SNA to EXA (or UXA).

How do I switch to EXA (or UXA)?

Last edited by javatechnical (2016-08-19 15:13:28)

ToZ · 2016-08-19 16:23:45

If the file /usr/share/X11/xorg.conf.d/20-intel.conf doesn't exist, create it (you will need root privileges). Add/edit so that it contains at least the following information:

Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "uxa"
EndSection

Log out and back in again to test. To verify that you are using UXA mode, check your Xorg.0.log file.

javatechnical · 2016-08-20 07:37:18

ToZ wrote:

If the file /usr/share/X11/xorg.conf.d/20-intel.conf doesn't exist, create it (you will need root privileges). Add/edit so that it contains at least the following information:
Section "Device"
   Identifier  "Intel Graphics"
   Driver      "intel"
   Option      "AccelMethod"  "uxa"
EndSection
Log out and back in again to test. To verify that you are using UXA mode, check your Xorg.0.log file.

Done. I will see if this solves the problem. However, my Intel driver

Installed: 2:2.99.917+git20160325-1ubuntu1

it is above 2.20 to support SNA. It supports SNA and the RAM is also 2 GB (fairly enough for smooth performance of Xfce 32 bit), I have disabled Compositing also.

Also, during the time it gets stuck, the no. of programs used are also pretty much less, it got stuck even if only the lightweight DeadBeef player is opened.

Could there be any other cause for this problem other than SNA? Because, SNA is said to be faster and better than other methods.

Last edited by javatechnical (2016-08-20 07:38:35)

ToZ · 2016-08-20 11:30:26

javatechnical wrote:

Could there be any other cause for this problem other than SNA? Because, SNA is said to be faster and better than other methods.

It's quote possible, yes. I suggested the UXA/EXA workaround because it was noted a few times in the google hits and its an easy thing to test. If the problem persists, you may wish to create a launchpad bug report about it.

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#1 2016-08-07 15:44:40

Xfce4 Desktop getting stuck (not responding)

#2 2016-08-07 18:39:21

Re: Xfce4 Desktop getting stuck (not responding)

#3 2016-08-08 14:36:46

Re: Xfce4 Desktop getting stuck (not responding)

#4 2016-08-13 06:13:15

Re: Xfce4 Desktop getting stuck (not responding)

#5 2016-08-13 11:28:39

Re: Xfce4 Desktop getting stuck (not responding)

#6 2016-08-19 06:23:34

Re: Xfce4 Desktop getting stuck (not responding)

#7 2016-08-19 13:12:13

Re: Xfce4 Desktop getting stuck (not responding)

#8 2016-08-19 15:13:16

Re: Xfce4 Desktop getting stuck (not responding)

#9 2016-08-19 16:23:45

Re: Xfce4 Desktop getting stuck (not responding)

#10 2016-08-20 07:37:18

Re: Xfce4 Desktop getting stuck (not responding)

#11 2016-08-20 11:30:26

Re: Xfce4 Desktop getting stuck (not responding)

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