#hidpi

[dracarysqueen]

FINALLY been able to find a workaround to blurry pics on tumblr with a retina display screen. i’ve spent the last few days being frustrated as fuck at seeing all the gifs being blurry and ugly. now it’s 90% better? it’s not a permanent solution but at least it’ll do until the internet goes HD.

now how i’m gonna deal with that on my future work is another matter, wish me luck!

[system76]

All About the HiDPI Daemon

All About the HiDPI Daemon

Since we started offering laptops with HiDPI screens, we’ve noticed a major challenge to users when HiDPI and LoDPI monitors are used together. We’ve received many support calls from customers on setting up their displays.  It became clear that we needed a solution available today - at least until Wayland matures to the point where it can completely replace X and is supported by all GPU manufacturers.

So, our engineer David started working on improving the HiDPI experience on X, especially for those with an NVIDIA graphics card.  Improving the multi-monitor experience ensures that when users connect a LoDPI monitor to a HiDPI enabled laptop, their displays are setup correctly with no effort on the users’ part.

How this works:

The new HiDPI service listens for display events and optimizes display settings for the best user experience possible for a variety of multi-monitor setups.  The engineering work was no trivial task requiring months of investigative work into the lower levels of the Xorg and GNOME eco-system, followed by extensive testing with numerous laptops and desktops with different graphics cards, internal screens, and monitors.  We tailored the behavior, so Intel and NVIDIA both do the right thing given their capabilities.  The end result is a seamless customer experience of using your applications across a variety of monitors of various resolutions.

Results:

You can now plug in a LoDPI external display to your Galago Pro or your HiDPI Oryx Pro, Serval WS, or Bonobo WS and expect it to just work.  The same is true when plugging a HiDPI display into any other System76 laptop.  No more complicated reshuffling every time you plug a second monitor in.

We also made it simple to switch displays between HiDPI and LoDPI.  This is especially useful for applications like GIMP and Inkscape whose toolkits do not support HiDPI and appear very small in HiDPI screens.

Whenever you have a HiDPI monitor, you’ll receive a notification that can be used to toggle between HiDPI crispness and LoDPI compatibility.  This notification can be accessed at any time in the message center.

The HiDPI daemon release is available for all System76 customers and for Pop!_OS users. It features a new and improved layout engine, the ability to use saved layouts and resolutions, and several bug fixes. The layout engine now uses saved monitor configurations to arrange displays and keeps display placement as close as possible even as they change relative (resolution) size.  

You can now set any appropriate LoDPI resolution, and the HiDPI daemon will use it. We’ve also included GSettings and a DBus API to allow other distros to create their own graphical interfaces to the daemon.   

We hope this feature will be of use to all of you as we deliver it to System76 customers and as a part of the Pop!_OS experience.  We put a lot of work into making the multi-monitor experience as seamless as possible for all our users. If you’re using a HiDPI screen on Pop!_OS or on a System76 laptop or desktop, let us know what you think.  Your feedback helps us refine and improve the experience as we prepare to release it for Pop!_OS.  

To try out the Daemon, you can find it in our PPA: system76-dev/stable The command is:

```sudo apt-add-repository -y ppa:system76-dev/stable sudo apt update sudo apt install hidpi-daemon```

Signing off with a HiDPI song from David. Enjoy! https://youtu.be/sZFGG18c6As

[xuqi7shiqi]

Firefox 在 Linux 下的 HiDPI 设置

Firefox 字太小的话，可以打开 about:config （我保证会小心！），找到 layout.css.devPixelsPerPx 这个设置，把它从 -1 改成一个1和2之间的数。我自己觉得 1.3 就不错，对大多数人应该1.5以下就足够了。

[huongdanhow]

How to enable HiDPI on MacOS

How to enable HiDPI on MacOS

This article will guide you to enable your desired HiDPI resolution, the best graphics mode for all devices running MacOS.

What exactly HiDPI is?

HiDPI (High Dots Per Inch) has no specific definition. For easy understanding, HiDPI means “doubling pixels” technology. With HiDPI mode, one pixel (pixel) will be duplicated in each direction (vertical and horizontal). Specifically, according to…

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[huongdanhow]

Hướng dẫn kích hoạt HiDPI cho MacOS

Hướng dẫn kích hoạt HiDPI cho MacOS

Bài viết này sẽ hướng dẫn kích hoạt HiDPI để đạt được độ phân giải đẹp mỹ miều như màn hình Retina của các thiết bị Apple.

HiDPI là gì?

HiDPI, là viết tắt của High Dots Per Inch, không có định nghĩa cụ thể. Thuật ngữ này dùng để ám chỉ công nghệ hiển thị “nhân đôi pixel”. Với chế độ HiDPI, một điểm ảnh (pixel) sẽ được nhân đôi theo mỗi chiều (dọc và ngang). Cụ thể theo hình minh hoạ bên…

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[sololinuxes]

Instalar VirtualBox 6.0.10 en Debian 10 Buster

Instalar VirtualBox 6.0.10 en Debian 10 Buster. VirtualBox es un poderoso software de virtualización gratuito y Open Source (GPLv2), su uso es valido tanto para empresas como a nivel particular. El 16 de julio de 2019, Oracle lanzó la versión 6.0.10 de VirtualBox. Vemos algunas de las mejoras del nuevo lanzamiento. VirtualBox 6.0 viene con una importante renovación de la interfaz de usuario. Se implementa soporte para exportar una máquina virtual a Oracle Cloud Infrastructure. Virtualización de hardware anidada en CPU AMD. Soporte HiDPI y escalado muy mejorado. Se incluye una mejor detección y configuración de la máquina. Configuración de altavoces envolventes. Admite la firma de controlador de arranque seguro UEFI en hosts Ubuntu y Debian. Guarda el tamaño de la pantalla de invitado incluso después de reiniciar el sistema. Admite los kernels 5.0 y 5.1, recordemos que Ubuntu 19.04 viene con el kernel 5.0. Rendimiento y estabilidad mejoradas de la función "carpeta compartida". Soporte para dispositivos gráficos VMSVGA en máquinas virtuales que utilizan EFI. USB: backends Linux modificados para restablecer los dispositivos USB (un gran avance). Recuerda que desde VirtualBox 6.0 ya no se admiten sistemas de 32 bits, si está utilizando una máquina de 32 bits debes instalar VirtualBox 5.2, que también acaba de ser actualizada. En este tutorial veremos cómo instalar VirtualBox 6.0.10 en Debian 10 Buster. Vamos a ello.  

Instalar VirtualBox 6.0.10 en Debian 10

Antes de comenzar un pequeño apunte: Si tienes instalado el firmware UEFI en tu maquina, te recomiendo que deshabilites el arranque seguro, ten en cuenta que al instalar VirtualBox se agregan nuevos módulos al kernel (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) y más vale prevenir que curar. Ademas agregaremos nuestro usuario a sudoers (en el caso de que aun no lo este). sudo adduser tu-usuario sudo sudo apt install sudo Solo te falta reiniciar el sistema.   Instalar VirtualBox 6.0.10 VirtualBox no viene en el repositorio predeterminado de Debian 10, por tanto lo instalaremos desde el repositorio oficial de Oracle. sudo nano /etc/apt/sources.list.d/oracle-virtualbox.list Copia y pega lo siguiente. deb https://download.virtualbox.org/virtualbox/debian buster contrib Descargamos e importamos la clave pública de Oracle GPG en nuestro Debian 10. wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add - Actualizamos los paquetes. sudo apt update Instalamos la ultima versión de VirtualBox. sudo apt install virtualbox-6.0 Reinicia el sistema. Ahora vemos como instalar VirtualBox 5.2 para 32bits.   Instalamos VirtualBox 5.2 (sistemas de 32 bits) Como ya comentamos anteriormente la versión 6.0.x de VirtualBox es exclusiva para 64bits. Si quieres instalar VirtualBox en arquitecturas de 32bits el proceso es prácticamente el mismo. Agregas el repositorio de Oracle e importas la key como vimos en los pasos anteriores. Para instalar la versión compatible con 32 bits ejecutas lo siguiente: sudo apt install virtualbox-5.2 Reinicia el sistema. Ya podemos iniciar VirtualBox desde el menú de aplicaciones de nuestro sistema, o con el siguiente comando en la terminal. virtualbox ejemplo...

VirtualBox Manager   Espero que este articulo sea de utilidad, puedes colaborar con nosotros con una donación (paypal), o con el simple gesto de compartir los manuales en tu sitio web, blog, foro o redes sociales.   Read the full article

[iteman]

Overriding High DPI Scaling from the Command Line

I am compiling and building an OpenCV app on Windows 10, which shows some images. I want to overrride the high DPI scaling behavior and set it to "Application". I can do this fine on the .exe fi...

[iteman]