2026

Recovering Advanced Save Options in Visual Studio 2017…

13.08.2026 0, ? Software and Hardware Usage

In older versions of VS, the File menu had an item called Advanced Save Options, which allowed choosing the text encoding format of source files. After upgrading to 2017 (fresh installation with all default settings), I found this option was gone (Community edition)!

Actually it is just hidden by default, but you can bring it back through the Customize menu function:

Go to Tools → Customize… → Commands → Menu Bar: File → Add Command → File → Advanced Save Options…, then drag it to the position you prefer!

I feel this option should be quite commonly used, so I do not know why it is hidden by default.

Method to compile 32bit programs on 64bit Linux CentOS 7

12.08.2026 0, ? Design & Development

The method recorded here theoretically applies to all RedHat‑based Linux distributions!
Normally on 64bit Linux (after installing gcc and related tools), compiled executables target the 64bit environment. If you want to compile for 32bit (which can also run on 64bit systems), just add the -m32 option to gcc (for ld there is a corresponding -melf_i386). Although compiling only requires adding the parameter, you still need to install the 32bit versions of the C and C++ standard libraries.

For example, if you compile directly with -m32, you will get the following error:

[kres@localhost test6432]$ gcc -m32 test.c
In file included from /usr/include/features.h:399:0,
from /usr/include/unistd.h:25,
from /usr/include/usb.h:28,
from test.c:1:
/usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h：No such file or directory

# include ;
^
compilation terminated.
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Hard‑mod upgrade of Lenovo Y1S router to 64M flash

11.08.2026 0, ? Software and Hardware Usage

Since replacing it with the Redmi AX6000 last October, the Y1S that had served for nearly 10 years finally retired and has since been sitting unused in a box…

Until recently, while browsing the Enshan forum, I accidentally saw a post by user 1421890054: 【2022-1-22】折腾一下OpenWrt-Lenovo-newifi-y1s-R22.1.1-mt7620a-USB, and realized that the Y1S can actually support larger flash chips (the original Winbond 25Q128 is only 16M, and after installing OpenWrt there is basically no room for software…). So I dug out the retired Y1S, planning to try a hard‑mod flash upgrade for fun.

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Method to convert PCB footprints from LCSC EasyEDA to KiCad format

10.08.2026 0, ? Software and Hardware Usage

Recently I have been learning EDA, using the open source KiCad. Basic operations are simple, but compared to EasyEDA’s web ecosystem, KiCad’s component symbols and footprints are less convenient. Fortunately I found a method to import EasyEDA PCB footprints into KiCad (borrowed from others, haha). Original post: http://www.taodudu.cc/news/show-5505674.html?action=onClick. Recording here:

When using KiCad, sometimes a footprint is missing and needs to be drawn manually. But drawing is troublesome. Instead, you can download directly from EasyEDA.
First log in to the EasyEDA web version: https://pro.lceda.cn/ and enter the standard version.

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Cherry MX2.0S RGB keyboard LED failure episode three

08.08.2026 0, ? Software and Hardware Usage

Following the previous two repair records of Cherry MX2.0S RGB LED failures (see earlier notes: Repair log of Cherry MX2.0S RGB keyboard lighting failure after more than 3 years , Cherry MX2.0S RGB keyboard LED failure repair log again), after about two months another group of keys (Ctrl, Shift, =, F11) developed the same fault:

Because I know this keyboard has the bad LED issue, I often subconsciously press keys repeatedly to trigger the lighting effect and check if any LEDs have died.

This time I caught it in the act, witnessing the entire process of this group of LEDs going from ‘normal to failing’:

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Problems encountered when cloning submodules in a GitHub project

09.07.2026 0, ? Software and Hardware Usage

GitHub is truly a treasure trove of open source, not only for learning code but also for learning how to use git!

Recently I studied the Off‑the‑Record‑iOS project (https://github.com/chrisballinger/Off-the-Record-iOS) and practiced using git submodules.

This project has a Submodules folder containing other open source projects it depends on. At first I did not notice, and just downloaded the ZIP. In XCode many file names showed up in red, revealing missing dependencies. There were quite a few, so I abandoned manual downloading.

Searching, I found issue #87 where someone asked the same question: https://github.com/chrisballinger/Off-the-Record-iOS/issues/87. Following the answer, I cloned the project with git and ran git submodule init && git submodule update (for git 1.6 and later you can use git clone –recursive). Updating worked for the first few submodules, but then a new error appeared:

Submodule path ‘Submodules/DAKeyboardControl’: checked out ‘5352d1ff2d1131d974d94406ed8fcf8eb068aa72’
Cloning into ‘Submodules/LibOrange’…
Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Clone of ‘git@github.com:ChatSecure/LibOrange.git’ into submodule path ‘Submodules/LibOrange’ failed

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Windows symbolic link (shortcut) follow behavior in network shares

06.07.2026 0, ? Software and Hardware Usage

This issue appeared during the following operation. First, a PowerShell script was used to create a symbolic link:

New-Item -ItemType SymbolicLink -Path d:\share_folder\ -Name latest -Target d:\share_folder\v1000 -Force

This command creates a shortcut named ‘latest’ inside d:\share_folder, pointing to the sibling folder v1000. Then share_folder was shared over the network. When accessing \\xxx.xxx.xxx.xxx\share_folder\latest from another machine, the error appeared: ‘Cannot follow symbolic link because its type is disabled’. Searching online revealed the reason, for example: https://www.zywvvd.com/notes/system/windows/symlink-disabled/symlink-disabled/

By default, Windows only allows symbolic link following locally. Remote‑to‑local (a shortcut inside a share pointing to a local path) and remote‑to‑remote (a shortcut inside a share pointing to another share path) are disabled. Following the solution, running: fsutil behavior set SymlinkEvaluation R2L:1 enables remote‑to‑local following. But then accessing the link produced ‘target folder does not exist’.

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One possible cause of the ‘Cannot mix incompatible Qt library with this library’ error

05.07.2026 0, ? Design & Development

The complete error message looks like this:

Output in the debug console：

QtTest.exe (15068): Loaded 'D:\Qt\6.8.3\msvc2022_64\plugins\styles\qmodernwindowsstyled.dll'. Symbols loaded.
Cannot mix incompatible Qt library (6.8.3) with this library (6.8.0)
Debug Error!

Program: D:\Qt\6.8.3\msvc2022_64\bin\Qt6Cored.dll
Module: 6.8.0
File: C:/Users/qt/work/qt/qtbase/src/corelib/kernel/qobject_p.h
Line: 233

Cannot mix incompatible Qt library (6.8.3) with this library (6.8.0)

(Press Retry to debug the application)

This error occurred in a simple test program using QOpenGLWidget. The message clearly indicates that different versions of Qt libraries were mixed. Searching online shows many similar cases, usually caused by overlapping Qt DLL versions in the system PATH, because Qt loads many dynamic libraries as plugins. But after checking repeatedly, I confirmed that my environment did not have this issue. I only had one Qt installation, the prebuilt 6.8.3 version installed via Qt Maintenance Tool under D:\Qt\6.8.3. If I ignored the error, the program still ran correctly, but the popup was annoying, so I needed to investigate.

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