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fbvnc

patched framebuffer VNC client for embeded system like Raspberry Pi

Introduction

There is already a framebuffer VNC client for Linux:

http://pocketworkstation.org/fbvnc.html

While this also comes with some bugs, and its size seems not suitable for tiny embeded system.

Then I found this fbvnc project:

http://repo.or.cz/w/fbvnc.git

Very lightweight, some function works fine, sadly still some bugs with this fbvnc.

So, I decide to make this fbvnc project better for embeded system. These things should be done later:

  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...

Notes about framebuffer depth (Raspbery Pi)

This fbvnc project assumes framebuffer color depth is 32bit.

If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi) or doesn't support 32bit framebuffer at all, then you need to change size of framebuffer depth in fbvnc.c

For Raspbery Pi (display well in 16bit framebuffer), you need to change:

typedef unsigned int fbval_t;

to:

typedef unsigned short fbval_t;

About

patched framebuffer VNC client for Freescale EPD systems

Topics

epdereaderframebuffervnc

Resources

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
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1 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
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1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
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1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
Stars
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1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
Stars
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Watchers
1 watching
Forks
0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
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1 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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fbvnc
patched framebuffer VNC client for embeded system like Raspberry Pi
Introduction
There is already a framebuffer VNC client for Linux:
http://pocketworkstation.org/fbvnc.html
While this also comes with some bugs, and its size seems not suitable for tiny embeded system.
Then I found this fbvnc project:
http://repo.or.cz/w/fbvnc.git
Very lightweight, some function works fine, sadly still some bugs with this fbvnc.
So, I decide to make this fbvnc project better for embeded system.
These things should be done later:
  • try to fix 16/32 bits color display bug (DONE)
  • add VNC authentication support (DONE)
  • better mouse event support (DONE)
  • ...
Notes about framebuffer depth (Raspbery Pi)
This fbvnc project assumes framebuffer color depth is 32bit.
If your framebuffer device has some bug for 32bit framebuffer (like Raspberry Pi)
or doesn't support 32bit framebuffer at all,
then you need to change size of framebuffer depth in fbvnc.c
For Raspbery Pi (display well in 16bit framebuffer), you need to change:
typedef unsigned int fbval_t;
to:
typedef unsigned short fbval_t;
About
patched framebuffer VNC client for Freescale EPD systems
Topics
epdereaderframebuffervnc
Resources
Readme
Activity
Stars
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Watchers
1 watching
Forks
0 forks
Report repository
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