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Thread: KDE Plasma desktop keeps freezing.

  1. #1

    Default KDE Plasma desktop keeps freezing.

    I had the same problem with openSUSE 42.3 as I do now with openSUSE Leap 15: occasionally the plasma workspace would freeze and the only solution would be to hit "Alt + F2" and open Konsole and use the following command:

    Code:
    kquitapp5 plasmashell && kstart plasmashell
    It occurs utterly random so I realise this makes it difficult to diagnose, but maybe someone has an idea?

    Thanks.

  2. #2
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    Default Re: KDE Plasma desktop keeps freezing.

    Please provide, using the [ # ] icon above the input window here, the output from the all except the first of the following run in konsole:
    Code:
    sudo zypper in inxi
    df /
    sudo btrfs filesystem usage /
    inxi -GxxxmSC
    The first line is not needed if inxi is already installed.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
    Secondary: eComStation (OS/2)&42.3 on 965P/Radeon
    Tertiary: TW,15.0,42.3,Fedora,Debian,more on Kaby Lake,Q45,Q43,G41,G3X,965G,Cedar,Caicos,Oland,GT218&&&

  3. #3

    Default Re: KDE Plasma desktop keeps freezing.

    Quote Originally Posted by mrmazda View Post
    Please provide, using the [ # ] icon above the input window here, the output from the all except the first of the following run in konsole:
    Code:
    sudo zypper in inxi
    df /
    sudo btrfs filesystem usage /
    inxi -GxxxmSC
    The first line is not needed if inxi is already installed.
    Had to install inxi.

    The second line gives:
    Code:
    df /
    Filesystem     1K-blocks    Used Available Use% Mounted on
    /dev/sda1       20971520 6896272  12395824  36% /
    The third line gives:
    Code:
    sudo btrfs filesystem usage /
    Overall:
        Device size:                  20.00GiB
        Device allocated:              9.02GiB
        Device unallocated:           10.98GiB
        Device missing:                  0.00B
        Used:                          6.56GiB
        Free (estimated):             11.82GiB      (min: 6.33GiB)
        Data ratio:                       1.00
        Metadata ratio:                   2.00
        Global reserve:               17.75MiB      (used: 0.00B)
    
    Data,single: Size:7.01GiB, Used:6.16GiB
       /dev/sda1       7.01GiB
    
    Metadata,DUP: Size:1.00GiB, Used:203.58MiB
       /dev/sda1       2.00GiB
    
    System,DUP: Size:8.00MiB, Used:16.00KiB
       /dev/sda1      16.00MiB
    
    Unallocated:                                                                                                                                                                       
       /dev/sda1      10.98GiB
    The fourth line gives (using sudo because the output said that root was required for dmidecode):
    Code:
    sudo inxi -GxxxmSC                                                                                                                                          
    System:    Host: linux-ynji Kernel: 4.12.14-lp150.12.61-default x86_64 bits: 64 gcc: 7.4.0                                                                                         
               Console: tty 0 dm: sddm,sddm Distro: openSUSE Leap 15.0                                                                                                                 
    CPU:       Quad core Intel Core i5-2500K (-MCP-) arch: Sandy Bridge rev.7 cache: 6144 KB                                                                                           
               flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 26340
               clock speeds: min/max: 1600/3700 MHz 1: 3292 MHz 2: 3292 MHz 3: 3292 MHz 4: 3292 MHz
    Memory:    Used/Total: 4221.4/7886.2MB
               Array-1 capacity: 32 GB (check) devices: 4 EC: None max module size: 4 GB (est)
               Device-1: A0 size: 4 GB (Single-bank) speed: 1333 MT/s type: N/A
               bus width: 2244 bits (total: 2304 bits) manufacturer: N/A part: N/A serial: N/A
               Device-2: A1 size: No Module Installed type: N/A
               Device-3: A2 size: 4 GB (Single-bank) speed: 1333 MT/s type: N/A
               bus width: 2244 bits (total: 2304 bits) manufacturer: N/A part: N/A serial: N/A
               Device-4: A3 size: No Module Installed type: N/A
    Graphics:  Card: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
               bus-ID: 00:02.0 chip-ID: 8086:0112
               Display Server: X.org 1.19.6 drivers: modesetting (unloaded: fbdev,vesa)
               tty size: 179x58 Advanced Data: N/A for root out of X

  4. #4
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    Default Re: KDE Plasma desktop keeps freezing.

    Without sudo produces what I was looking for:
    Code:
    > inxi -Gxxm
    Memory:    RAM: total: 15.54 GiB used: 3.83 GiB (24.7%)
               RAM Report: permissions: Unable to run dmidecode. Root privileges required.
    Graphics:  Device-1: Intel 4th Generation Core Processor Family Integrated Graphics vendor: Micro-Star MSI driver: i915
               v: kernel bus ID: 00:02.0 chip ID: 8086:041e
               Display: server: X.Org 1.18.3 driver: modesetting unloaded: fbdev,vesa alternate: intel resolution: 1920x1200~60Hz
               OpenGL: renderer: Mesa DRI Intel Haswell v: 4.3 Mesa 17.0.5 compat-v: 3.0 direct render: Yes
    See the difference (ignore difference in graphics device, no Sandy Bridge here, and this is from 42.3, so older versions)?

    Anyway, RAM availability is not your issue, and neither does / filesystem freespace seem to be ATM, or hardware, or the old DDX (since it's not in use, xf86-video-intel).

    / filesystem still might be involved. Minimum recommended size for / when using BTRFS is 40GB, because of snapshotting. If you have totally disabled snapshots, then you're OK with only 20GB, but if not... - did you recently delete all snapshots?

    Instead of doing "kquitapp5 plasmashell && kstart plasmashell" right away when it happens, try opening top or htop from Konsole to see if something is hogging CPU.

    You could try creating a new user to find out whether something might be corrupt among your personal Plasma settings.

    What type, brand and model storage device is your / installed on? If SSD, what does "systemctl status fstrim.timer" report?

    15.1 development was finished yesterday. Online upgrades are already possible.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
    Secondary: eComStation (OS/2)&42.3 on 965P/Radeon
    Tertiary: TW,15.0,42.3,Fedora,Debian,more on Kaby Lake,Q45,Q43,G41,G3X,965G,Cedar,Caicos,Oland,GT218&&&

  5. #5

    Default Re: KDE Plasma desktop keeps freezing.

    Ah, I thought sudo had timed out.

    Code:
    inxi -GxxxmSC
    Resuming in non X mode: glxinfo not found. For package install advice run: inxi --recommends
    System:    Host: ALEXPC Kernel: 4.12.14-lp150.12.61-default x86_64 bits: 64 gcc: 7.4.0
               Desktop: KDE Plasma 5.12.8 (Qt 5.9.4) dm: sddm,sddm Distro: openSUSE Leap 15.0
    CPU:       Quad core Intel Core i5-2500K (-MCP-) arch: Sandy Bridge rev.7 cache: 6144 KB
               flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 26339
               clock speeds: min/max: 1600/3700 MHz 1: 3292 MHz 2: 3292 MHz 3: 3292 MHz 4: 3292 MHz
    Memory:    Using dmidecode: root required for dmidecode
    Graphics:  Card: Intel 2nd Generation Core Processor Family Integrated Graphics Controller
               bus-ID: 00:02.0 chip-ID: 8086:0112
               Display Server: x11 (X.org 1.19.6 ) drivers: modesetting (unloaded: fbdev,vesa) tty size: 179x58

  6. #6

    Default Re: KDE Plasma desktop keeps freezing.

    Still, that doesn't provide the information like your example.

    Quote Originally Posted by mrmazda View Post
    / filesystem still might be involved. Minimum recommended size for / when using BTRFS is 40GB, because of snapshotting. If you have totally disabled snapshots, then you're OK with only 20GB, but if not... - did you recently delete all snapshots?
    Yast reports that no snapper configurations exist. Which explains why I didn't have to keep track of the snapshots.

    It's a fresh openSUSE Leap 15 install. From the DVD image.

    Quote Originally Posted by mrmazda View Post
    Instead of doing "kquitapp5 plasmashell && kstart plasmashell" right away when it happens, try opening top or htop from Konsole to see if something is hogging CPU.

    You could try creating a new user to find out whether something might be corrupt among your personal Plasma settings.

    What type, brand and model storage device is your / installed on? If SSD, what does "systemctl status fstrim.timer" report?

    15.1 development was finished yesterday. Online upgrades are already possible.
    I don't recall something hogging the CPU, but I'll make sure to check that the next time it happens.

    I haven't checked a new user account yet, because the current one is from early 2018 (I believe it was a new one for 42.3).

    It's a SAMSUNG HD501LJ.

    I know 15.1 was about to be published, that's why I upgraded from 42.3 to 15.

  7. #7
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    Default Re: KDE Plasma desktop keeps freezing.

    Quote Originally Posted by ae_lex View Post
    Still, that doesn't provide the information like your example.
    Must be the annoying antique inxi version (it's only a script) provided by Leap. Its development version is named pinxi (3.0.34-01). You could upgrade to the much newer one from TW (directly), 3.0.32, or get current from its author, who recommends not using any distro's package (because they're virtually always behind), which is what I do:
    Code:
    > inxi -V | head -n1
    inxi 3.0.34-00 (2019-04-30)
    I keep mine in /usr/local/bin/.

    The glxinfo not found message can be stopped too:
    Code:
    > sudo zypper in Mesa-demo-x
    Inxi can sometimes self-update using its -U switch if /etc/inxi.conf exists containing "B_ALLOW_UPDATE=true". Other times trying to update produces error 33.

    None of above would affect $SUBJECT.

    Has this PC's internals ever been cleaned? Maybe something occasionally gets overheated? Power supply instability can cause freezing under load. Many power supplies since the middle of the last decade were produced with cheap bargain brand electrolytic capacitors that don't last like good ones do, like the plague that affected motherboard vendors early in the century, killing Abit and other manufacturers. Bad ones in power supplies are commonly DIY fixed relatively easily, using help from badcaps.net if necessary.

    What brand and model is your PC or motherboard? All manufacturers hadn't all switched all the most important caps from electrolytic to polys by 2011.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
    Secondary: eComStation (OS/2)&42.3 on 965P/Radeon
    Tertiary: TW,15.0,42.3,Fedora,Debian,more on Kaby Lake,Q45,Q43,G41,G3X,965G,Cedar,Caicos,Oland,GT218&&&

  8. #8

    Default Re: KDE Plasma desktop keeps freezing.

    New output

    Code:
    inxi -GxxxmSC
    System:    Host: linux-ynji Kernel: 4.12.14-lp150.12.61-default x86_64 bits: 64 compiler: gcc v: 7.4.0 
               Desktop: KDE Plasma 5.12.8 tk: Qt 5.9.4 wm: kwin_x11 dm: SDDM Distro: openSUSE Leap 15.0 
    Memory:    RAM: total: 7.70 GiB used: 1.86 GiB (24.2%) 
               RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
    CPU:       Topology: Quad Core model: Intel Core i5-2500K bits: 64 type: MCP arch: Sandy Bridge rev: 7 L2 cache: 6144 KiB 
               flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 26340 
               Speed: 1952 MHz min/max: 1600/3700 MHz Core speeds (MHz): 1: 1952 2: 3189 3: 1642 4: 1768 
    Graphics:  Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics vendor: Gigabyte driver: i915 v: kernel 
               bus ID: 00:02.0 chip ID: 8086:0112 
               Display: x11 server: X.Org 1.19.6 driver: modesetting unloaded: fbdev,vesa alternate: intel compositor: kwin_x11 
               resolution: 1280x1024~60Hz 
               OpenGL: renderer: Mesa DRI Intel Sandybridge Desktop v: 3.3 Mesa 18.0.2 compat-v: 3.0 direct render: Yes
    Quote Originally Posted by mrmazda View Post
    Has this PC's internals ever been cleaned? Maybe something occasionally gets overheated? Power supply instability can cause freezing under load. Many power supplies since the middle of the last decade were produced with cheap bargain brand electrolytic capacitors that don't last like good ones do, like the plague that affected motherboard vendors early in the century, killing Abit and other manufacturers. Bad ones in power supplies are commonly DIY fixed relatively easily, using help from badcaps.net if necessary.
    I try to keep it as clean as I can.

    The Simple Monitor Widget reports that the cores are around 30 degrees Celsius.

    AFAIK, the power supply works fine.

    Quote Originally Posted by mrmazda View Post
    What brand and model is your PC or motherboard? All manufacturers hadn't all switched all the most important caps from electrolytic to polys by 2011.
    Don't know. My hardware knowledge doesn't go beyond knowing how to install the parts.

  9. #9
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    Default Re: KDE Plasma desktop keeps freezing.

    Quote Originally Posted by ae_lex View Post
    Don't know. My hardware knowledge doesn't go beyond knowing how to install the parts.
    PC makers usually put a sticker on the outside of the box somewhere that includes the model number and month of manufacture. Motherboard makers usually stencil their name and a model number in a high contrast color and large type somewhere near the middle of the board.
    Reg. Linux User #211409 *** multibooting since 1992
    Primary: 42.3,TW,15.0 & 13.1 on Haswell w/ RAID
    Secondary: eComStation (OS/2)&42.3 on 965P/Radeon
    Tertiary: TW,15.0,42.3,Fedora,Debian,more on Kaby Lake,Q45,Q43,G41,G3X,965G,Cedar,Caicos,Oland,GT218&&&

  10. #10

    Default Re: KDE Plasma desktop keeps freezing.

    The problem happened again today, and I think I need to clarify something.

    Most often it's the application menu that stops responding.
    The second most often is the system tray that stops responding.
    It's all restricted to the taskbar.
    I click on something and it freezes/locks up/stops responding until I do:

    Code:
    kquitapp5 plasmashell && kstart plasmashell
    Quote Originally Posted by mrmazda View Post
    PC makers usually put a sticker on the outside of the box somewhere that includes the model number and month of manufacture. Motherboard makers usually stencil their name and a model number in a high contrast color and large type somewhere near the middle of the board.
    Gigabyte GA-Z68X-UD3H-B3

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