I have just installed Ubuntu MATE 21.10 (32-bit, armhf) on my Raspberry Pi 4 with 4 Gb of RAM. Note: I need 32-bit version to have Modelica compiler available. All settings are default. Information about video driver is below:
$ lsmod | grep drm
drm_kms_helper 282624 3 vc4
cec 65536 2 vc4,drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
drm 540672 12 v3d,vc4,gpu_sched,drm_kms_helper
$ grep -E "^dtoverlay|^max_framebuffers|^gpu_mem|^hdmi" /boot/firmware/config.txt
max_framebuffers=2
dtoverlay=vc4-fkms-v3d
gpu_mem=128
$ cat /proc/device-tree/soc/firmwarekms@7e600000/status
okay
$ cat /proc/device-tree/v3dbus/v3d@7ec04000/status
okay
$ glxinfo | grep -i opengl
OpenGL vendor string: Broadcom
OpenGL renderer string: V3D 4.2
OpenGL version string: 2.1 Mesa 21.2.2
OpenGL shading language version string: 1.20
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 21.2.2
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10
OpenGL ES profile extensions:
Then I installed Chromium browser as simple as sudo apt-get install chromium-browser
, launched it for first time to enable the following options on chrome://flags
:
- Override software rendering list aka
#ignore-gpu-blocklist
; - GPU rasterization aka
#enable-gpu-rasterization
; - Zero-copy rasterizer aka
#enable-zero-copy
; - Enables Display Compositor to use a new gpu thread. aka
#enable-drdc
; - Out-of-process 2D canvas rasterization. aka
#canvas-oop-rasterization
.
then relaunched it using chromium --enable-features=VaapiVideoDecoder
command.
Desite all these steps done, on chrome://gpu
Chromium says that GPU acceleration is not enabled:
Graphics Feature Status
- Canvas: Software only. Hardware acceleration disabled
- Canvas out-of-process rasterization: Disabled
- Compositing: Software only. Hardware acceleration disabled
- Multiple Raster Threads: Disabled
- Out-of-process Rasterization: Disabled
- OpenGL: Disabled
- Rasterization: Software only. Hardware acceleration disabled
- Raw Draw: Disabled
- Skia Renderer: Enabled
- Video Decode: Software only. Hardware acceleration disabled
- Vulkan: Disabled
- WebGL: Disabled
- WebGL2: Disabled
So the question is in the title.