sakesm

Hello everyone Now I have finished compiling armbian once and want to check and change the device tree of uboot, but I don't know where to download it, only see the kernel source code in cache/source, so I want to ask

Hello! I have a Zero2 board with 1GB of RAM. I compiled a Debian 12 desktop image for Zero2 using Armbian and I want to play online videos through a web browser. Unfortunately, the results have been disappointing as the performance for 1080p videos is very slow. I tried using swap, but it didn't help. I also attempted to play 1080p videos using MPV and VLC. MPV can still play the videos, but it feels sluggish, and VLC gets stuck on the screen until the playback is finished. I would like to know how to configure Zero2 on Linux to achieve video acceleration. I'm new to this, so I would appreciate some guidance. Thank you!

Attempt to use a hub to plug into USB 3.0, and then plug the RTL8153b USB to Gigabit Ethernet port into the hub, but unexpectedly discover that the speed can reach Gigabit. /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M |__ Port 1: Dev 3, If 0, Class=Hub, Driver=hub/4p, 5000M |__ Port 4: Dev 4, If 0, Class=Vendor Specific Class, Driver=r8152, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M

Under kernel 4.9, using a usb3.0 to Gigabit interface with RTL8153b card, the upstream and downstream speed can reach Gigabit. But with kernel5.10, the speed can't reach gigabit, and the driver file has been changed to the latest version, but still no effect. kernel5.10 Speed measurement root@orangepi3-lts:~# iperf3 -c 192.168.3.201 Connecting to host 192.168.3.201, port 5201 [ 5] local 192.168.3.146 port 44376 connected to 192.168.3.201 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 24.8 MBytes 208 Mbits/sec 0 147 KBytes [ 5] 1.00-2.00 sec 23.5 MBytes 198 Mbits/sec 0 147 KBytes [ 5] 2.00-3.00 sec 23.5 MBytes 197 Mbits/sec 0 147 KBytes [ 5] 3.00-3.15 sec 3.66 MBytes 202 Mbits/sec 0 147 KBytes root@orangepi3-lts:~# iperf3 -c 192.168.3.201 -R Connecting to host 192.168.3.201, port 5201 Reverse mode, remote host 192.168.3.201 is sending [ 5] local 192.168.3.146 port 44380 connected to 192.168.3.201 port 5201 [ ID] Interval Transfer Bitrate [ 5] 0.00-1.00 sec 47.5 MBytes 399 Mbits/sec [ 5] 1.00-2.00 sec 48.4 MBytes 406 Mbits/sec [ 5] 2.00-2.99 sec 48.1 MBytes 406 Mbits/sec root@orangepi3-lts:~# lsusb -t /: Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M /: Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci-platform/1p, 12M /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M |__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=r8152, 5000M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M