(SOLVED) Screen randomly splits picture into 2 or more segments

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Upton
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(SOLVED) Screen randomly splits picture into 2 or more segments

Post by Upton »

This is just plain weird. Randomly the screen will split into 2 or more pictures that are different views/exposure of the whole picture, little smaller then original picture.
Example: when I started this post I filled in the "subject" and tabbed to the body where I started to type, all of a sudden the picture on the monitor split into two duplicate smaller pictures. One picture had no typing in the "body", the other picture had the typing in the body I had started.
I could have left clicked any where in one of the pictures and it would have stitched itself back together as one picture, maybe or maybe not, in this particular case it immediately stitched back as 1 picture by itself with no input from me! This happens all the time and is driving me nuttier then I am! :mrgreen: It could have been something I did but I just don't remember!
Last edited by Upton on Mon Jul 05, 2021 3:18 pm, edited 1 time in total.
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xenopeek
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Re: Screen randomly splits picture into 2 or more segments

Post by xenopeek »

That would drive me up the walls as well. It would be useful to have some system information. If you're on Linux Mint 20 or newer open System Reports from your menu, in the left sidebar go to System Information and on the right click the Copy button and paste the copied system information here in reply. Or from the terminal run command inxi -Fxxrz and copy its output (through terminal's Edit menu you can select all text and then copy it).

Next time this happens it would be useful also if you can take a screenshot. Press Print Screen key on your keyboard (usually somewhere in top right corner, maybe shortened to Prt Sc or similar) to take a screenshot immediately. After the issue resolves itself it would be useful to know if the screenshot also shows the issue. And perhaps a photo taken with smartphone when it next happens? Maybe how it looks will give somebody a clue as to what is happening.
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Upton
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

Code: Select all

changeling@Lola:~$ inxi -Fxxxrz
System:
  Host: Lola Kernel: 5.4.0-77-generic x86_64 bits: 64 compiler: gcc v: 7.5.0 
  Desktop: Cinnamon 4.4.8 wm: muffin 4.4.4 dm: LightDM 1.26.0 
  Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic 
Machine:
  Type: Desktop System: MSI product: MS-7640 v: 1.0 serial: <filter> 
  Mobo: MSI model: 890FXA-GD70 (MS-7640) v: 1.0 serial: <filter> 
  BIOS: American Megatrends v: 1.7 date: 10/20/2010 
Battery:
  Device-1: hidpp_battery_0 model: Logitech Wireless Mouse M510 
  serial: <filter> charge: 55% rechargeable: yes status: Discharging 
CPU:
  Topology: 6-Core model: AMD Phenom II X6 1090T bits: 64 type: MCP 
  arch: K10 L2 cache: 3072 KiB 
  flags: lm nx pae sse sse2 sse3 sse4a svm bogomips: 38401 
  Speed: 800 MHz min/max: 800/3200 MHz boost: enabled Core speeds (MHz): 
  1: 800 2: 800 3: 800 4: 800 5: 800 6: 1932 
Graphics:
  Device-1: NVIDIA GF104 [GeForce GTX 460] vendor: eVga.com. driver: nvidia 
  v: 390.143 bus ID: 08:00.0 chip ID: 10de:0e22 
  Display: x11 server: X.Org 1.20.8 driver: nvidia 
  unloaded: fbdev,modesetting,nouveau,vesa resolution: 1920x1080~60Hz 
  OpenGL: renderer: GeForce GTX 460/PCIe/SSE2 v: 4.6.0 NVIDIA 390.143 
  direct render: Yes 
Audio:
  Device-1: AMD SBx00 Azalia vendor: Micro-Star MSI driver: snd_hda_intel 
  v: kernel bus ID: 00:14.2 chip ID: 1002:4383 
  Device-2: NVIDIA GF104 High Definition Audio vendor: eVga.com. 
  driver: snd_hda_intel v: kernel bus ID: 08:00.1 chip ID: 10de:0beb 
  Device-3: Texas Instruments Audio Codec type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus ID: 4-4:4 chip ID: 08bb:2704 
  Sound Server: ALSA v: k5.4.0-77-generic 
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Micro-Star MSI driver: r8169 v: kernel port: b800 bus ID: 05:00.0 
  chip ID: 10ec:8168 
  IF: enp5s0 state: down mac: <filter> 
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Micro-Star MSI driver: r8169 v: kernel port: c800 bus ID: 06:00.0 
  chip ID: 10ec:8168 
  IF: enp6s0 state: up speed: 100 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 1.82 TiB used: 44.09 GiB (2.4%) 
  ID-1: /dev/sda vendor: Western Digital model: WD2003FZEX-00SRLA0 
  size: 1.82 TiB speed: 1.5 Gb/s rotation: 7200 rpm serial: <filter> 
  rev: 1A01 scheme: MBR 
Partition:
  ID-1: / size: 1.79 TiB used: 44.09 GiB (2.4%) fs: ext4 dev: /dev/sda1 
Sensors:
  System Temperatures: cpu: 32.4 C mobo: N/A gpu: nvidia temp: 52 C 
  Fan Speeds (RPM): N/A gpu: nvidia fan: 33% 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com tricia main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ bionic partner
Info:
  Processes: 212 Uptime: 1h 19m Memory: 7.77 GiB used: 1.12 GiB (14.4%) 
  Init: systemd v: 237 runlevel: 5 Compilers: gcc: 7.5.0 alt: 7 Shell: bash 
  v: 4.4.20 running in: gnome-terminal inxi: 3.0.32 
changeling@Lola:~$ 
I think this is what you want, this is when the screen/monitor is acting normal. I'll try to get another copy when it is convoluted/messed up.
Last edited by xenopeek on Sun Jul 04, 2021 12:46 pm, edited 1 time in total.
Reason: replaced quote with code tags
Upton
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

It finally split and I took a screen shot (First time I ever did this) clicked on Prt Scr, sent to "Pictures file", Pictures file only shows the picture as stitched back together single normal picture!
Before I took a picture I could faintly see the green Logo of "Mint" like it was on a screen behind the screen I was viewing, hope that makes sense to you. I'll try again but never know when this is going to happen !
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Flemur
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Re: Screen randomly splits picture into 2 or more segments

Post by Flemur »

Upton wrote:
Sun Jul 04, 2021 12:54 pm
It finally split and I took a screen shot (First time I ever did this) clicked on Prt Scr, sent to "Pictures file", Pictures file only shows the picture as stitched back together single normal picture!
IIRC the screenshot software reads the X display buffer, which can be different than what's displayed on the screen (back in the old days if you screen-shot a movie you'd get a green rectangle).
Here's what I'd check:
-- the monitor connectors, graphics board and such, with the machine shut down and unplugged.
-- the settings on muffin, your window manager - make them simpler if possible.
Here's the man page for muffin: http://manpages.ubuntu.com/manpages/art ... fin.1.html
See if muffin will restart (replace itself) if you do muffin --replace in a terminal.
Please edit your original post title to include [SOLVED] if/when it is solved!
Your data and OS are backed up....right?
Upton
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

One more thing noticed,Normally the picture on my screen goes from edge to edge like it should, how ever it fairly often jumps to a different size by about an inch all around, when one starts moving the cursor/mouse again it jumps back to normal, bound to be related problem,
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SMG
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Re: Screen randomly splits picture into 2 or more segments

Post by SMG »

Upton wrote:
Sun Jul 04, 2021 12:54 pm
It finally split and I took a screen shot (First time I ever did this) clicked on Prt Scr, sent to "Pictures file", Pictures file only shows the picture as stitched back together single normal picture!
There is what the operating system is sending to the cable/monitor and then there is what the monitor displays.

Often if a screenshot does not show the problem you are seeing on the screen/monitor, then it may be a cable or monitor issue. Make sure both ends of your monitor's cable are securely tightened. You may also want to try a new cable.
A woman typing on a laptop with LM20.2 Cinnamon.
Upton
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

Flemur wrote:
Sun Jul 04, 2021 1:08 pm
Upton wrote:
Sun Jul 04, 2021 12:54 pm
It finally split and I took a screen shot (First time I ever did this) clicked on Prt Scr, sent to "Pictures file", Pictures file only shows the picture as stitched back together single normal picture!
IIRC the screenshot software reads the X display buffer, which can be different than what's displayed on the screen (back in the old days if you screen-shot a movie you'd get a green rectangle).
Here's what I'd check:
-- the monitor connectors, graphics board and such, with the machine shut down and unplugged.
-- the settings on muffin, your window manager - make them simpler if possible.
Here's the man page for muffin: http://manpages.ubuntu.com/manpages/art ... fin.1.html
See if muffin will restart (replace itself) if you do muffin --replace in a terminal.
I pulled the GPU and cleaned it couple weeks ago but changed nothing, kept doing the same thing. I don't have an application called muffin. This is straight Linux Mint 18, are you referring to MS windows or Linux Mint ? I do have applications called WINDOWS and Window Tiling. I remember messing with those two two files could I have messed up something in there? Do you know what their settings should be?
To add to this, I have tried my spare set of known cables (copper wired). I only use the set for testing and I know they are good, they have saved me lots of man hours in fixing/finding problems, highly recommend everyone get a set! This doesn't include cables with a "Chip" in them.
Last edited by Upton on Sun Jul 04, 2021 2:38 pm, edited 1 time in total.
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Flemur
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Re: Screen randomly splits picture into 2 or more segments

Post by Flemur »

Upton wrote:
Sun Jul 04, 2021 1:41 pm
I don't have an application called muffin.
What makes you think that?

muffin is your window manager; look at your inxi output. It should be running:

Code: Select all

ps aux | grep muffin

Code: Select all

I do have applications called WINDOWS and  Window Tiling. I remember messing with those two two files could I have messed up something in there? Do you know what their settings should be?
I don't have any idea what those applications, WINDOWS and Window Tiling, might be; their names are unlike any others.
Please edit your original post title to include [SOLVED] if/when it is solved!
Your data and OS are backed up....right?
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Re: Screen randomly splits picture into 2 or more segments

Post by SMG »

Upton wrote:
Sun Jul 04, 2021 1:41 pm
I don't have an application called muffin. This is straight Linux Mint 18, are you referring to MS windows or Linux Mint ?
You are running LM19.3. The windows manager (wm) for Cinnamon is muffin.

System:
Host: Lola Kernel: 5.4.0-77-generic x86_64 bits: 64 compiler: gcc v: 7.5.0
Desktop: Cinnamon 4.4.8 wm: muffin 4.4.4 dm: LightDM 1.26.0
Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic
A woman typing on a laptop with LM20.2 Cinnamon.
Upton
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

The old disk I found was for Mint 18, I guess it could have updated itself through windows manager to 19 but I never saw .a message saying windows 19 and the only place I have seen Muffin talked about is here. I'll research it and see what it does,I do not know a lot about the internal workings of Mint that is why I come to the Mint forum.

It just happened again I took several pictures which
SMG wrote:
Sun Jul 04, 2021 2:27 pm
Upton wrote:
Sun Jul 04, 2021 1:41 pm
I don't have an application called muffin. This is straight Linux Mint 18, are you referring to MS windows or Linux Mint ?
You are running LM19.3. The windows manager (wm) for Cinnamon is muffin.

System:
Host: Lola Kernel: 5.4.0-77-generic x86_64 bits: 64 compiler: gcc v: 7.5.0
Desktop: Cinnamon 4.4.8 wm: muffin 4.4.4 dm: LightDM 1.26.0
Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic
were supposed to go to my Picctures file but I bet they didn't.
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

I am really getting confused, SO, Muffin is the windows manager, OK.
It has been upgraded to 19.3 by the windows manager evidently. OK
The pictures taken with the "Prt Scr button are going to the "pictures" file as 1 picture. OK
That is as far as we have gone, so what should I do now?
I would like to know what the default settings are for windows and windows tiling applications in the applications menu.
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Re: Screen randomly splits picture into 2 or more segments

Post by SMG »

Upton wrote:
Sun Jul 04, 2021 3:15 pm
The old disk I found was for Mint 18, I guess it could have updated itself through windows manager to 19
There is no way to do that. The only way to upgrade from LM18 to LM19 is a manual upgrade process done using the terminal window. Or one can start over and install a fresh copy of LM19. There is no way to upgrade from 18 to 19 through 'windows manager'.
A woman typing on a laptop with LM20.2 Cinnamon.
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Re: Screen randomly splits picture into 2 or more segments

Post by Upton »

Well what can I say, I told you what I used to get to where we are now, Mint 19. So, Mint 19 has the problem I came here to try and fix what do I nee to do to fix?
I still would like to know what the default settings are for windows and windows tiling applications in the applications menu. That's the only thing I remember messing with, so it might be the problem.
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Re: Screen randomly splits picture into 2 or more segments

Post by SMG »

Upton wrote:
Mon Jul 05, 2021 12:41 pm
I still would like to know what the default settings are for windows and windows tiling applications in the applications menu. That's the only thing I remember messing with, so it might be the problem.
I do not have LM19 installed right now, but I can let you know the options showing for LM20.1. I do not think I changed any of the defaults.

Windows Tiling
Enable Windows Tiling and Snapping --> turned on

Tiling and Snapping section
- Tiling HUD visibility threshold(pixels) --> 25
- Modifier to use for toggling between tile and snap mode --> Control
- Maximize, instead of tile, when dragging a window to the top edge --> turned off
- Show snap on-screen display --> turned on
- Show tile heads-up display --> turned on
- Legacy window snapping --> turned off

Windows
Titlebar tab
- Buttons layout --> Right

Actions
- Action on title bar double-click --> Toggle Maximize
- Action on title bar middle-click --> Lower
- Action on title bar right-click --> Menu
- Action on title bar with mouse scroll --> Nothing

Behavior tab
Window Focus
- Window focus mode --> Click
- Bring windows which require attention to the current workspace --> turned off
- Prevent windows which require attention from stealing focus --> turned off
- Focus mode for new windows --> Smart
- Attach dialog windows to parent window --> turned off

Moving and Resizing Windows
- Location of newly opened windows --> Center
- Special key to move and resize windows --> <Alt>
- Windows drag/resize threshold (Pixels) --> 24
- Edge resistance with other windows and monitor boundaries --> turned on

Alt-Tab tab
- Alt-tab switcher style --> Icons and thumbnails
- Display the alt-tab switcher on the primary monitor instead of the active one --> turned off
- Move minimized windows to the end of the alt-tab switcher --> turned off
- Delay before displaying the alt-tab switcher (milliseconds)--> 100
- Show windows from all workspaces --> turned off
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Upton
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Re: (SOLVED) Screen randomly splits picture into 2 or more segments

Post by Upton »

Thanks SMG, That did the trick, it has remained stable after changing the defaults to what you posted, your expertise has been very much appreciated!
I marked it SOLVED.
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