cpu
是 i5-10400
核显 uhd630
感觉这个现象不太正常。
双屏 4k@30Hz
显示设置里 user interface scale
是 Double(Hi-DPI)
两个屏幕分别开两个 chrome
窗口就能感觉到卡
如果播放视频的话,intel-cpu-top
查看占用一直 90% 以上
而且视频画面有明显的闪烁感觉
浏览器版本 chrome-stable Version 96.0.4664.110 (Official Build) (64-bit)
Graphics Feature Status
Canvas: Hardware accelerated
Canvas out-of-process rasterization: Disabled
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
Out-of-process Rasterization: Disabled
OpenGL: Enabled
Rasterization: Software only. Hardware acceleration disabled
Raw Draw: Disabled
Skia Renderer: Enabled
Video Decode: Software only. Hardware acceleration disabled
Vulkan: Disabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
查看 media
使用的 VideoDecoder
也是 FFmpegVideoDecoder
96
版本的 chrome-stable
好像也没有 updated_guide_on_how_to_get_hardware_acceleration/ 这篇文章里说的 Hardware-accelerated video decode
等 flags
λ xrandr -q
Screen 0: minimum 320 x 200, current 6000 x 3840, maximum 16384 x 16384
DP-1 connected primary 3840x2160+2160+0 (normal left inverted right x axis y axis) 522mm x 294mm
3840x2160 60.00 + 30.00*
2560x1440 59.95
1920x1080 60.00 60.00 50.00 59.94
1920x1080i 60.00 50.00 59.94
1680x1050 59.95
1600x900 60.00
1280x1024 75.02 60.02
1440x900 59.89
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
832x624 74.55
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 connected 2160x3840+0+0 left (normal left inverted right x axis y axis) 344mm x 194mm
3840x2160 30.00* 25.00 24.00 29.97 23.98
2560x1440 59.95
1920x1080 120.00 100.00 119.88 60.00 60.00 50.00 59.94 30.00 25.00 24.00 29.97 23.98
1920x1080i 60.00 50.00 59.94
1600x1200 60.00
1680x1050 59.88
1400x1050 59.95
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
720x576 50.00
720x576i 50.00
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 72.81 66.67 60.00 59.94
720x400 70.08
λ vainfo
libva info: VA-API version 1.10.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_10
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.10 (libva 2.10.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 21.1.1 ()
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSliceLP
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSliceLP
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSliceLP
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileHEVCMain : VAEntrypointVLD
VAProfileHEVCMain10 : VAEntrypointVLD
VAProfileVP9Profile0 : VAEntrypointVLD
VAProfileVP9Profile2 : VAEntrypointVLD
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