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Lenovo IdeaPad 1

Published by Silveira on 18 November, 2023

Lenovo IdeaPad 1 14″ Laptop Computer – Cloud Grey (AMD Ryzen 5 5500U 2.1GHz Processor; 8GB DDR4-3200 Onboard RAM; 256GB Solid State Drive; AMD Radeon 7 Graphics) USD$ 229.99 + taxes.

Micro Center product page screenshot.

Went to the BIOS and changed it to performance mode. Got the Windows keys out and installed Ubuntu 22.04.3 LTS (jammy).

PCI buses information:

$ sudo update-pciids
$ lspci -nn

00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne Root Complex [1022:1630]
00:00.2 IOMMU [0806]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne IOMMU [1022:1631]
00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge [1022:1632]
00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge [1022:1632]
00:02.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge [1022:1634]
00:02.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge [1022:1634]
00:02.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne PCIe GPP Bridge [1022:1634]
00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir PCIe Dummy Host Bridge [1022:1632]
00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus [1022:1635]
00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Renoir Internal PCIe GPP Bridge to Bus [1022:1635]
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 51)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 0 [1022:1448]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 1 [1022:1449]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 2 [1022:144a]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 3 [1022:144b]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 4 [1022:144c]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 5 [1022:144d]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 6 [1022:144e]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Renoir Device 24: Function 7 [1022:144f]
01:00.0 SD Host controller [0805]: O2 Micro, Inc. SD/MMC Card Reader Controller [1217:8621] (rev 01)
02:00.0 Network controller [0280]: MEDIATEK Corp. MT7921 802.11ax PCI Express Wireless Network Adapter [14c3:7961]
03:00.0 Non-Volatile memory controller [0108]: Micron Technology Inc 2450 NVMe SSD [HendrixV] (DRAM-less) [1344:5411] (rev 01)
04:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Lucienne [1002:164c] (rev c2)
04:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Renoir Radeon High Definition Audio Controller [1002:1637]
04:00.2 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 10h-1fh) Platform Security Processor [1022:15df]
04:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1 [1022:1639]
04:00.4 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Renoir/Cezanne USB 3.1 [1022:1639]
04:00.5 Multimedia controller [0480]: Advanced Micro Devices, Inc. [AMD] ACP/ACP3X/ACP6x Audio Coprocessor [1022:15e2] (rev 01)
04:00.6 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Family 17h/19h HD Audio Controller [1022:15e3]
05:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 81)
05:00.1 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 81)

Installing AMD drivers:

$ sudo apt install gdebi
$ sudo gdebi amdgpu-install_5.7.50702-1_all.deb
$ amdgpu-install

Drivers information:

$ glxinfo -B
name of display: :0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: AMD (0x1002)
    Device: AMD Radeon Graphics (renoir, LLVM 16.0.6, DRM 3.49, 6.2.0-36-generic) (0x164c)
    Version: 23.2.0
    Accelerated: yes
    Video memory: 2048MB
    Unified memory: no
    Preferred profile: core (0x1)
    Max core profile version: 4.6
    Max compat profile version: 4.6
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
Memory info (GL_ATI_meminfo):
    VBO free memory - total: 1138 MB, largest block: 1138 MB
    VBO free aux. memory - total: 2991 MB, largest block: 2991 MB
    Texture free memory - total: 1138 MB, largest block: 1138 MB
    Texture free aux. memory - total: 2991 MB, largest block: 2991 MB
    Renderbuffer free memory - total: 1138 MB, largest block: 1138 MB
    Renderbuffer free aux. memory - total: 2991 MB, largest block: 2991 MB
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 2048 MB
    Total available memory: 5120 MB
    Currently available dedicated video memory: 1138 MB
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon Graphics (renoir, LLVM 16.0.6, DRM 3.49, 6.2.0-36-generic)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 23.2.0-devel
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile

OpenGL version string: 4.6 (Compatibility Profile) Mesa 23.2.0-devel
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile

OpenGL ES profile version string: OpenGL ES 3.2 Mesa 23.2.0-devel
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20

Testing if APU is working:

$ sudo apt-get install mesa-utils
$ vblank_mode=0 glxgears
ATTENTION: default value of option vblank_mode overridden by environment.
54476 frames in 5.0 seconds = 10895.144 FPS
54569 frames in 5.0 seconds = 10913.684 FPS
55201 frames in 5.0 seconds = 11038.656 FPS

Benchmarking with glmark2:

$ sudo apt-get install glmark2
$ glmark2 --show-all-options

=======================================================
    glmark2 2021.02
=======================================================
    OpenGL Information
    GL_VENDOR:     AMD
    GL_RENDERER:   AMD Radeon Graphics (renoir, LLVM 16.0.6, DRM 3.49, 6.2.0-36-generic)
    GL_VERSION:    4.6 (Compatibility Profile) Mesa 23.2.0-devel
=======================================================
...
glmark2 Score: 2429

Cedilha no Ubuntu 16.04

Published by Silveira on 5 March, 2017 
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Fiz esse script (cedilha.sh) pra fazer o c-cedilha (ç) funcionar no Ubuntu 16.04. Como é uma tarefa chata que eu já tive que fazer muitas vezes fica mais fácil pra mim ter um script pra fazer isso e pode ser que seja útil a outras pessoas. Infelizmente é uma solução que exige baixar e executar como root um script da internet. Eu recomendo que você leia o script e entenda o que está acontecendo antes de executá-lo. Esse script altera vários arquivos importantes e ele faz um backup (.bak) desses arquivos.

[bash]wget https://raw.githubusercontent.com/silveira/cedilha.sh/master/cedilha.sh
sudo bash cedilha.sh[/bash]

Por favor, se o script funcionou pra você também, diga nos comentários. Se você não está usando Ubuntu 16.04 e quer testar o script ainda assim, edite o script e remova a verificação no inicio do programa.

Heroku on Ubuntu 11.04 (Natty Narwhal)

Published by Silveira on 28 September, 2011

As root execute:

apt-get update
apt-get install build-essential ruby rails rubygems1.8
apt-get install ruby1.8-dev libopenssl-ruby

Chance PATH at /etc/environment:

PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/var/lib/gems/1.8/bin"

Update your current environment:

source /etc/environment

Install the Heroku gem:

sudo gem install heroku

Run Heroku authentication configuration:

heroku auth:login

Enter the credentials for your Heroku account.

Done!

Miojo Script

Published by Silveira on 28 January, 2010

O pre-requisito é o notify-send, um utilitário de linha de comando do libnotify. No Ubuntu:

sudo aptitude install libnotify-bin

E aqui o script em si:

sleep 5m; notify-send "aviso" "tirar o miojo do fogo"

Pronto, depois de cinco minutos isso vai aparecer:

OpenCV on Ubuntu

Published by Silveira on 21 December, 2009

digital_eye

Open Computer Vision Library or just OpenCV, is a cross-platform computer vision library focused on real-time image processing for video files or webcams.

You have two options to obtain the environment to develop on OpenCV. You can insert a new repository in your package manager or compile it by yourself.

For Ubuntu 9.10 Karmic Koala there’s this repository with OpenCV’s package.

To compile it you have to install some additional libraries compile it by your self. And it’s instructions vary for each distribution and version. For example, from Ubuntu Linux 9.10 to 9.04, the process varies slightly. I followed the instructions on this post “Installing OpenCV 2.0 on Ubuntu 9.10 Karmic Koala”.

After you have installed and have a well configured OpenCV development environment, you can compile a “source.c” file into a “program” binary like this:

gcc gcc source.c -o program `pkg-config opencv ‑‑libs ‑‑cflags`