Activity log for bug #1770494

Date Who What changed Old value New value Message
2018-05-10 20:33:30 Scott bug added bug
2018-05-10 20:33:30 Scott attachment added File to test - try in terminal with "cat screen-capture.txt" or "less -r screen-capture.txt" and scale the screen. https://bugs.launchpad.net/bugs/1770494/+attachment/5137413/+files/screen-capture.txt
2018-05-11 17:28:11 Scott 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: Save the text below to file.txt (or all the text in this window) In Gnome-Terminal try "cat file.txt" over and over to see the error. In Gnome-Terminal try "less -r file.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   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) 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)
2018-05-11 19:23:50 Egmont Koblinger bug added subscriber Egmont Koblinger
2018-05-11 19:38:53 Egmont Koblinger bug watch added https://bugzilla.gnome.org/show_bug.cgi?id=732586
2018-05-11 19:38:53 Egmont Koblinger bug watch added https://bugzilla.gnome.org/show_bug.cgi?id=778122
2018-05-14 14:09:26 Scott gnome-terminal (Ubuntu): status New Fix Released