ANSI color working inconsistently

[tlayte]

Versions

ConEmu build: 170910 x64
OS version: Windows 10 Pro x64 (Build 16251.rs3_release.170721-2122)
Used shell version : WSL Ubuntu 16.04 bash via wslbridge

Problem description

24bit ansi colors work perfectly only after running echo -e "\e[9999H". Clearing the console from within bash or echo -e "\e[2J" reverts to not working.

I hope this is the right place to report this, I have tested the included version of wslbridge using mintty in an attempt to narrow down the source of the problem and it does not exhibit this behaviour.

Steps to reproduce

1. Open default detected Bash::bash task.
2. immediately run 256colors.pl
3. run `echo -e "\e[9999H"
4. run 256colors.pl again

Actual results

On a fresh run of the bash task:

After running echo -e "\e9999H" in the same console tab

After returning from alternate screen (vim used as example here, but mutt and others all have the same effect)

(edit: Just noticed the typo in the last screenshot. last word in step 2 should read "change")

Expected results

The colors as seen in the second screenshot above.

Additional files

ConEmu.xml,

ConEmu logs one of the above sessions
Console log from the session

[BladeMF]

I observe the same problem, version 171117 x64. Running "clear" and "mc" mess with the colors too.

[Maximus5]

Windows API still doesn't have proper way to request extended color attributes.
ConEmu implementation of its internal true-color buffer is not perfect, and have synchronization problems with conhost.
The only possible way (from ConEmu side) is reinventing the wheel and get rid of conhost completely. It's a crazy work and I hope to avoid it.

/cc @miniksa

[bmayen]

Would be great to have this documented prominently. The docs for getting 256 colors working with wsl (https://conemu.github.io/en/BashOnWindows.html) don't mention this nor the fact that latest builds already have the bridge set up by default. Lost a lot of time doing needless, redundant setup, then when I discovered it's already supposed to work out of the box, I lost even more time not knowing about this issue. I imagine I'm not the only one.

[Maximus5]

Merged: gh-227