README update, add solution Crostini graphics issue; build info update

Signed-off-by: Martin <[email protected]>

CHANGELOG

@@ -1,3 +1,4 @@
+2024-03-12 (29dbcca): README update
 2024-03-05 (9c1e9e8): fix #399 - update macos build instructions, hack nedded no more
 2024-02-24 (3ac5c3a): fw refactoring - no functional change
 2024-02-23 (ad43d3b): Merge branch 'wakass-main' - Instrustar 205X support #394

README.md

@@ -186,6 +186,9 @@ Especially on Windows, this option may be necessary to use the program.
 It has been reported that the MINGW binary build on some Windows systems had problems with the graphical display
 and led to a black screen without traces. In these cases, the switch to the MSVC binary build can help.
 
+Similar [issues](https://github.com/OpenHantek/OpenHantek6022/issues/350) with Linux on ChromeOS (Crostini) can be solved by setting the environment variable `LIBGL_ALWAYS_SOFTWARE=1` when using OpenHantek.
+This could also be a solution for the above MINGW issue, see e.g. #360 and #388 - not yet confirmed.
+
 The Raspberry Pi build uses OpenGL ES automatically, check also the [graphics driver setup](docs/build.md#raspberrypi).
 
 ### USB Access

docs/build.md

@@ -175,6 +175,7 @@ about building on macOS 11.6.8 + Xcode 12.4 (12D4e).
 As I do not use macOS for development the building is done externally by [GitHub Actions](https://github.com/OpenHantek/OpenHantek6022/actions)
 who provides [these macOS 11 environments](https://github.com/actions/runner-images/blob/main/images/macos/macos-11-Readme.md).
 Please check also the file [build_check.yml](https://github.com/OpenHantek/OpenHantek6022/blob/main/.github/workflows/build_check.yml) for info about the building process.
+
 ----
 
 ### [Windows](#windows)
@@ -186,6 +187,7 @@ will be closed as invalid!
 * Compile the software
 
 Hints for Visual Studio 2015/2017/2019 users:
+
 * Install the right Qt package that matches your Visual Studio installation.
 * Build for 64bit. 32bit builds theoretically work, but you are on your own then.
 * Use the **CMake GUI** to setup all required Qt include and library paths.
@@ -194,8 +196,8 @@ Hints for Visual Studio 2015/2017/2019 users:
 
 As I do not use Windows for development the building is done externally by [GitHub Actions](https://github.com/OpenHantek/OpenHantek6022/actions)
 who provides [these Windows environments](https://github.com/actions/virtual-environments/blob/main/images/win/Windows2019-Readme.md).
-Please check also the file [build_check.yml](https://github.com/OpenHantek/OpenHantek6022/blob/main/.github/workflows/build_check.yml) for info about the building process.
-Starting with the update to Visual Studio 2019 for the upcoming OpenHantek6022 version 3.2 only 64bit builds are provided.
+Please check also the file [build_check.yml](https://github.com/OpenHantek/OpenHantek6022/blob/main/.github/workflows/build_check.yml) for info about the building process with either MINGW or MSVC.
+Starting with the update to Visual Studio 2019 only 64bit builds are provided.
 
 #### Signed WinUSB driver for Hantek 6022BE/BL