** Description changed:

-   I'm writing a shell script that draws in color to any VT-100 terminal.
+ I'm writing a shell script that draws in color to any VT-100 terminal.
  The terminal in Ubuntu consistently and randomly drops out of graphics
  mode producing huge glitches.  This does not occur in Xterm or Gnome
- terminal on CentOS.
+ Terminal on CentOS.
  
  Appearance:
-   The image from the file below should look like a color filled square, what 
you see is a "glitch" which looks like the second half of an escape command 
followed by a lot of "a"'s where the graphical checkerboard character should be 
rendered (in Ubuntu Gnome terminal it is rendered as a cursor that is the color 
of a 50% blend between the background and foreground color, making it the best 
appearing terminal I've used)
+   The image from the file below should look like a color filled square, what 
you see is a "glitch" which looks like the second half of an escape command 
followed by a lot of "a"'s where the graphical checkerboard character should be 
rendered (in Ubuntu Gnome terminal it is rendered as a cursor that is the color 
of a 50% blend between the background and foreground color, making it the best 
appearing terminal I've used)
  
  Reproducibility:
  It is 100% reproducible with the instructions below.
  
  To reproduce:
-   Save the text below to file.txt (or all the text in this window) 
+   Using the attached screen-capture.txt file:
  
-   In Gnome-Terminal try "cat file.txt" over and over to see the error.
+   In Gnome-Terminal try "cat screen-capture.txt" over and over to see
+ the error.
  
-   In Gnome-Terminal try "less -r file.txt" and scale the terminal window
- to see variation
+   In Gnome-Terminal try "less -r screen-capture.txt" and scale the
+ terminal window to see variation
  
  Comments:
-    I don't know if there is a problem where characters are dropped from 
stdin, or if the pipe is getting reset, or if the emulator can't keep up with 
the commands, or if there is a(n inconsisent) limit to the number of command 
codes that can be sent to the terminal. Or if it is being interrupted, or if it 
randomly resets...
- 
- file.txt (tried to attach as "screen-capture.txt"):
-  File  Rendering 
 Lighting  
c[?25l(0)0  
 
aaaaaaaaaaaaa
   
aaaaaaaaaaaaa
    
aaaaaaaa
  
aaaaa
 
aaaaa
  
aaaaaaaa
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
aaaaa
 
aaaaaaa
 
aaaaa
  
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  
aaaaaa
 
aaaaaa
  
aaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  
aaaaa
  
aaaaaaaaaaaaaaaaaaaaaaaaa(B)B(0)0
       
 
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  
aaaaaaa
   
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  
aaaaaaaa
 
aaaaaaaa
  
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
  
aaaaaa
 
aaaaaaaa
 
aaaaaa
  
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
 
aaaaaaaaa
  
aaaaaa
 
aaaaaa
  
aaaaaaaaa
 (B)B File 
 Rendering  Lighting 
 
+    I don't know if there is a problem where characters are dropped from 
stdin, or if the pipe is getting reset, or if the emulator can't keep up with 
the commands, or if there is a(n inconsisent) limit to the number of command 
codes that can be sent to the terminal. Or if it is being interrupted, or if it 
randomly resets...
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: gnome-terminal 3.6.2-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-147.196-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-147-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.27
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu May 10 15:10:57 2018
  InstallationDate: Installed on 2014-12-02 (1255 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 
(20140722.2)
  SourcePackage: gnome-terminal
  UpgradeStatus: No upgrade log present (probably fresh install)

-- 
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https://bugs.launchpad.net/bugs/1770494

Title:
  Does not display VT-100 control codes correctly/consistently

Status in gnome-terminal package in Ubuntu:
  New

Bug description:
  I'm writing a shell script that draws in color to any VT-100 terminal.
  The terminal in Ubuntu consistently and randomly drops out of graphics
  mode producing huge glitches.  This does not occur in Xterm or Gnome
  Terminal on CentOS.

  Appearance:
    The image from the file below should look like a color filled square, what 
you see is a "glitch" which looks like the second half of an escape command 
followed by a lot of "a"'s where the graphical checkerboard character should be 
rendered (in Ubuntu Gnome terminal it is rendered as a cursor that is the color 
of a 50% blend between the background and foreground color, making it the best 
appearing terminal I've used)

  Reproducibility:
  It is 100% reproducible with the instructions below.

  To reproduce:
    Using the attached screen-capture.txt file:

    In Gnome-Terminal try "cat screen-capture.txt" over and over to see
  the error.

    In Gnome-Terminal try "less -r screen-capture.txt" and scale the
  terminal window to see variation

  Comments:
     I don't know if there is a problem where characters are dropped from 
stdin, or if the pipe is getting reset, or if the emulator can't keep up with 
the commands, or if there is a(n inconsisent) limit to the number of command 
codes that can be sent to the terminal. Or if it is being interrupted, or if it 
randomly resets...

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: gnome-terminal 3.6.2-0ubuntu1
  ProcVersionSignature: Ubuntu 3.13.0-147.196-generic 3.13.11-ckt39
  Uname: Linux 3.13.0-147-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.27
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu May 10 15:10:57 2018
  InstallationDate: Installed on 2014-12-02 (1255 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 
(20140722.2)
  SourcePackage: gnome-terminal
  UpgradeStatus: No upgrade log present (probably fresh install)

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