我是 Ubuntu 新手。打开笔记本电脑后几分钟内互联网可以工作，然后就会断开连接。它通常会保持连接 5-15 分钟，然后就会断开连接，除非我重新启动笔记本电脑，否则我将无法连接。请有人帮忙！谢谢。
我尝试按照该问题的答案中的说明进行操作：如何使 Ralink RT3290 无线网卡工作？由 Luis Alvarado 创作，但没有效果。
00:00.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Complex [1022:1410]
00:01.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Richland [Radeon HD 8550G] [1002:990d]
00:01.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Trinity HDMI Audio Controller [1002:9902]
00:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Root Port [1022:1414]
00:10.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller [1022:7814] (rev 09)
00:10.1 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller [1022:7814] (rev 09)
00:11.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7804]
00:12.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller [1022:7807] (rev 11)
00:12.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller [1022:7808] (rev 11)
00:13.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller [1022:7807] (rev 11)
00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller [1022:7808] (rev 11)
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:780b] (rev 16)
00:14.2 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller [1022:780d] (rev 01)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:780e] (rev 11)
00:14.4 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge [1022:780f] (rev 40)
00:15.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0) [1022:43a0]
00:15.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 1) [1022:43a1]
00:15.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 3) [1022:43a3]
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 0 [1022:1400]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 1 [1022:1401]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 2 [1022:1402]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 3 [1022:1403]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 4 [1022:1404]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 10h-1fh) Processor Function 5 [1022:1405]
01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
04:00.0 Network controller [0280]: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe [1814:3290]
04:00.1 Bluetooth [0d11]: Ralink corp. RT3290 Bluetooth [1814:3298]
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader [10ec:5229] (rev 01)
答案1
我认为您可能尝试的最有效方法是从内核版本 3.13 编译反向移植的驱动程序。请获取临时有线以太网、USB 调制解调器、网络共享或任何可靠的互联网连接。打开终端并执行以下操作：
sudo apt-get install linux-headers-generic build-essential
将此文件下载到您的桌面：http://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.13.2/backports-3.13.2-1.tar.xz 右键单击它并选择“在此处提取”。现在返回终端：
cd ~/Desktop/backports-3.13.2-1
make defconfig-wifi
make
sudo make install
该过程需要一些时间；请耐心等待。完成后，您可能会收到有关签名的警告，您可以放心忽略。重新启动并让我们收到您的报告。
我知道你可能尝试过几种方法。你有参数文件吗？我们应该看看里面有什么，然后决定是否仍然需要它：
cat /etc/modprobe.d/rt2800pci.conf