How to Create GEOMETRIC FIGURES in Gimp
Go to: Filters - render - Gfig
Saturday, October 14, 2023
Troubleshooting to boot into operating system – Ubuntu – Windows
Troubleshooting to boot into operating system – Ubuntu – Windows
Dell Latitude 3580
========== Error msg screen
[ 0.528293] Kernel panic not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 0.528398] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 6.2.0-34-generic #34~22.04.1-Ubuntu
[ 0.528504] Hardware name: Dell Inc. Latitude 3580/0TRRN3, BIOS 1.24.8 04/11/ 2023
[ 0.528607] Call Trace:
[ 0.528685] <TASK>
[ 0.528762] dump_stack_lvl+0x48/0x70
[ 0.528846] dump_stack+0x10/0x20
[ 0.528926] panic+0x35a/0x3a0
[ 0.529009] mount_block_root+0x27b/0x280
[ 0.529093] mount_root+0x83/0xb0
[ 0.529173] prepare_namespace+0xf5/0x200
[ 0.529255] kernel_init_freeable+0x1c1/0x200
[ 0.529339] ?__pfx_kernel_init+0x10/0x10
[ 0.529423] kernel_init+0x1b/0x200
[ 0.529505] ? __pfx_kernel_init+0x10/0x10
[ 0.529587] ret_from_fork+0x29/0x50
[ 0.529670] </TASK>
[ 0.529787] Kernel Offset: 0x2b800000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 0.529899] —[ end Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block (0, 0) ]—
========== Error msg screen
F2=========== Bios version = 1.24.0
—- Boot Sequence:
Diskette Drive = off
Internal HDD = on first
USB Storage Device = off
CD/DVD/CD-RW Drive = off
Onboard NIC = off
Boot List Option:
Legacy: on (single option)
UEFI: off (Add/Delete Boot Option)
(Created today)
EFIubuntugrubx64efi = on 2
shimx64.efi = on 3
mmx64.efi = on 4
View: (Button)
View boot Option
Boot Option Name: UEFI: Hard Drive, Partition 2
File System List: HD(2,GPT,742648E9-82E9-4CB2-81F7-841D179BF509)
File Name: EFI\Microsoft\Boot\bootmgfw.efi
Add Boot Option: (Button)
Boot Option Name:
EFIubuntugrubx64efi (created today)
File System List: PciRoot(0x0)/Pci(0x17,0x0)/VenHw(CF31FAC5-C24E-11D2-85F3-00A0C93EC93B,80)/HD(2,GPT,742648E9-82E9-4CB2-81F7-841D179BF509)
File Name: \EFI\ubuntu\grub64.efi
File Name: (Button options)
EFI Boot Selection: (Menu)
File System: FSO: (single option)
Directories:
EFI:
Microsoft
Boot (several files)
Recovery (empty)
Boot
fxb64.efi
mmx64.efi
bootx64.efi
ubuntu
grubx64.efi (created today)
shimx64.efi (created today)
mmx64.efi (created today)
BOOTX64.CSV
grub.cdf
Dell
logs: diags_previous.xml, diags_current.xml
System Volume Inf: (empty)
This list specifies the order that the BIOS searches devices when trying to find an operating system to boot.
To change the boot order select the device to be changed in the list on the right hand side,
then click down arrows or use the keyboard PgUp/PgDn keys to change the boot order of the device.
The boot devices can also be selected or de-selected from the list using the check boxes on the left hand side.
- Legacy Option ROMs need to be enabled for Legacy boot mode.
- Legacy boot mode is not allowed when Secure Boot is enabled.
- Clicking the “Load Defaults” button will change neither the Boot List option nor the Legacy Option ROMS setting, nor the Secure Boot setting — these three settings will remain unchanged.
—- Advanced Boot Options:
Enable the 2 options of legacy
============
Intel Software Guard Extensions
Disable SGX
Wednesday, September 27, 2023
Espelhar para uma tela com o Meta Quest PC smartphone
Espelhar para uma tela com o Meta Quest
Espelhar para o computador
https://www.meta.com/pt-br/help/quest/articles/in-vr-experiences/oculus-features/cast-with-quest/
Para começar o espelhamento:
- Em um computador, abra o Google Chrome ou o Microsoft Edge e entre na sua conta da Meta.
- Acesse oculus.com/casting.
- Coloque o headset e pressione
no controle para abrir o menu universal.
- Selecione Câmera, Espelhar e Computador.
Para interromper o espelhamento:
- No seu headset Meta Quest, selecione Câmera e Espelhamento.
- Selecione Interromper espelhamento
Espelhar para TV ou smartphone
No app Meta Quest, toque em Espelhar
- Toque no headset do qual deseja espelhar e, em seguida, toque no dispositivo para o qual deseja espelhar.
- Caso não veja sua tela, toque em Outros dispositivos para pesquisar um dispositivo disponível na sua rede.
- Toque em Iniciar para começar o espelhamento.
- Toque em Interromper o espelhamento no app Meta Quest quando quiser parar de compartilhar.
Observação: se você fechar o app Meta Quest ou abrir um app diferente no seu smartphone, a transmissão será interrompida.
- Toque no headset do qual deseja espelhar e, em seguida, toque no dispositivo para o qual deseja espelhar.
Small Camera, Mini Camera, HD1080P, USB Camera, Action Camera, Infrared Night Vision, Sports Camera, Built-in 32G Memory Card, 800 mAh, Long Time Recording
Technical Details
| Brand | CPYSAWU | ||||
|---|---|---|---|---|---|
| Package Dimensions | 9.8 x 8.5 x 4.3 cm; 90 g | ||||
| Power Source | Battery Powered | ||||
| Laser Class | Night Vision | ||||
| Paint Features | Infrared | ||||
| Item Weight | 90 g |
The main camera weighs only 1.6 oz (43 g), and the size is 0.9 x 0.9 x 1.0 inches (2.3 x 2.4 x 2.5 cm), making it small and convenient
Long-lasting recording possible.
Built-in 800mAh battery, one full charge and the mini camera can record up to 5.5 hours.In addition, it can record while charging, so you can record the recording without worrying about power out.
Easy to operate
This mini camera is easy to use even for beginners, and can complete recording, night vision, and on/off functions with one button.
Product Standards:
- 1. Video recording
- 2.1920*1080@30pfs
- 3. Lens: 90 degree field of view
- Built-in 4.800 mAh battery for up to 5.5 hours of recording
- 5.32GB Internal Memory Card
- 6.4 x Infrared LED Lamp (Light is required to use)
- Type-C interface
- 8. 360° rotatable clip
-----
Long press the power button for about 3 seconds to turn on/off
Blue = on (not recording)
1 red flash and led off = off
-----
1 Quickly press power button to recording on:
Blue blink 4 times and led off = recording
-----
Quickly press power button twice when in on mode to turn the IR LED on or off.
1 blue flash = Night vision on (invisible to see)
1 red flash = Night vision off (invisible to see)
1 Quickly press power button to recording off:
Blue = on (not recording)
-----
Instructions videos:
https://www.amazon.com/HD1080P-Recorder-Wearable-Enforcement-Security/dp/B08CY4RR9X
review video:
https://youtu.be/Rm6udJARDeA?si=wZkkGVBNh64GWRFX
Wednesday, June 14, 2023
How to install GitHubDesktop on Ubuntu Linux
Download:
Run terminal commands:
$ sudo apt-get install gdebi-core
$ sudo gdebi GitHubDesktop-linux-3.1.1-linux1.deb
What is GDebi core?
Gdebi lets you install local deb packages resolving and installing its dependencies. apt does the same, but only for remote (http, ftp) located packages. It can also resolve build-depends of local debian/control files.
How to Update VSCode in Ubuntu Linux
VSCode Site:
https://code.visualstudio.com/
https://code.visualstudio.com/
Download code_... package and run terminal commands:
$ sudo gdebi code("TAB to complete package name")
or $ sudo dpkg -i code("TAB to complete package name")
$ code
Video Tutorial:
https://mypurtech.com/en/update-visual-studio-code-ubuntu/
https://mypurtech.com/en/update-visual-studio-code-ubuntu/
Friday, June 2, 2023
CSS3
CSS
Estilos Inline
<body style="background-color: lightskyblue; font-family: Arial, Helvetica,
sans-serif; font-size: 20px;">
<h1 style="color: mediumblue; background-color: dodgerblue; font-size: 1.5em;">
<h2 style="color: darkred; font-size: 1.2em;">
<p style="text-align: justify;">
Estilos Locais/Internos
<title>Estilos Locais / Internos</title>
<style>
body {
background-color: lightsteelblue;
font-family: Arial, Helvetica, sans-serif;
font-size: 20px;
}
h1 {
color: darkblue;
background-color: lightblue;
}
h2 {
color: darkred;
}
p {
text-align: justify;
}
</style>
</head>
<body>
Estilos Externos
<title>Estilos Externos</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
Crie um arquivo com o nome: "style.css"
@charset "UTF-8";
body {
background-color: lightgoldenrodyellow;
font-family: Arial, Helvetica, sans-serif;
font-size: 20px;
}
h1 {
color: maroon;
background-color: goldenrod;
}
h2 {
color: darkred;
}
p {
text-align: justify;
}
Cores
<h2 style="background-color: blue; color: white;">
<h2 style="background-color: #0000ff; color: #ffffff;">
<h2 style="background-color: rgb(0,0, 255); color: rgb(255, 255, 255);">
<h2 style="background-color: hsl(240, 100%, 50%); color: hsl(0, 0%, 100%);">
<h2 style="background-color: rgba(27, 78, 33, 0.205); color:#047000;">
Paleta de cores
https://color.adobe.com/create/color-wheel
Gradiente em Css
<title>Gradiente em Css</title>
<style>
* { /* Configurações globais das CSS */
height: 100%;
}
body {
background-image: linear-gradient(to right, #3198E2, #6D59C0, #B93590,
#E33F5F, #FDD579);
background-attachment: fixed;
}
</style>
</head>
<body>
Exemplo de estilo
@charset "UTF-8";
* {
font-family: Arial, Helvetica, sans-serif:
height: 100%;
}
body {
background-image: linear-gradient(to right, #F1D8C9, #F2C3A7);
}
main {
background-color: white;
border-radius: 10px;
box-shadow: 5px 5px 15px rgba(136, 109, 93, 0.616);
width: 600px;
padding: 10px;
margin: auto;
}
h1 {
color: #F39209;
text-align: center;
text-shadow: 1px 1px 2px rgba(129, 77, 5, 0.726);
}
h2 {
color: #125189;
}
p {
text-align: justify;
}
Fontes
<title>Fontes com Google Fonts</title>
<style>
@import url('https://fonts.googleapis.com/css2?family=Kaushan+Script&display
=swap');
@import url('https://fonts.googleapis.com/css2?family=Fredericka+the+Great&
display=swap');
@import url('https://fonts.googleapis.com/css2?family=KorksSans:ital, wght@
,100;0,200;0, 300;0,400;0, 500;0,600;0,700;0,800;0,900; 1,100;1,200;1,300;1,400
;1,500;1,600;1,700;1,800; 1,900&display=swap');
body {
font-family: 'Work Sans', Arial, Verdana, sans-serif;
font-size: 16px;
color: black;
}
h1 {
font-family: 'Fredericka the Great', cursive;
font-size: 3em;
font-weight: normal;
}
h2 {
font-family: 'Kaushan Script', serif; font-size: 2em;
}
</style>
Alinhamento
<title>Alinhamentos</title>
<style>
body {
font: normal 16px Arial, Verdana, serif;
text-align: left;
}
h1 {
text-align: center;
}
h2 {
text-align: right;
}
p {
text-align: justify;
text-indent: 30px;
}
</style>
Fontes Externas
<title>Fontes Externas</title>
<style>
@font-face {
font-family: 'Love';
src: url('fonts/love larry.otf') format('opentype'), url('fonts/love
larry ttf.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
@font-face {
font-family: 'Lover';
src: url('fonts/Lovebeat.otf') format('opentype');
font-weight: normal;
font-style: normal;
}
body {
font-family: Arial, Helvetica, sans-serif;
}
h1 {
font-family: 'Love', Times, serif;
font-size: 3em;
font-weight: normal;
}
h2 {
font-family: 'Lover', Times, serif;
font-size: 3em;
font-weight: normal;
}
/* Baixe a fonte e deixe na pasta "fonts".
Tipos de format()
- opentype (otf)
- truetype (ttf)
- embedded-opentype
- truetype-aat (Apple Advanced Typography)
- SVg
*/
</style>
Usando o #id
No HTML "id"
<h1 id="principal">Titulo Principal</h1>
<h1>Titulo 1</h1>
No CSS "#"
/* Pode ser apenas #principal */
h1#principal {
text-align: center;
background-color:rgb(4, 109, 0);
color: white;
}
h1 {
color: rgb(4, 109, 0);
}
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