哇酷®开发者社区(WhyCan® Forum)

问题描述：
1、没有运行qt 程序 时，网络一切正常。测试时长：2小时以上
2、在运行qt程序时，没有黑色背景时，网络一切正常。测试时长：2小时以上
3、在运行qt程序时，有一部分黑色背景时：

[ 388.408522] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 416.488530] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 418.568416] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 437.288544] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 438.328431] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 445.608542] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 448.728471] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 454.968534] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 458.088520] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 477.848571] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 478.888454] dwmac-sun8i 1c30000.ethernet eth0: Link is Down
[ 496.568539] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 498.648404] dwmac-sun8i 1c30000.ethernet eth0: Link is Down