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Ubuntu 在播放 H.264 视频时随机冻结

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Ubuntu 在播放 H.264 视频时随机冻结

我有一台联想 T430，自 2016 年以来一直在其上运行 Ubuntu。最近，我遇到了越来越多明显随机的崩溃，一切都无限期地冻结，除了硬重启之外没有任何效果。

这个问题始于我运行 Ubuntu 16.04 时，在全新安装 20.04 后仍然存在（或略有恶化）。我更换了 RAM 和硬盘，但情况没有任何改善。（我运行了 BIOS、硬盘和 RAM 测试，结果没有问题。）

有时它可以正常运行几天，但有时它会连续崩溃多次。

这种情况非常随机，有时甚至在我不使用电脑时也会发生，但最常见的情况是使用 Firefox + YouTube 和其他视频或 JavaScript 繁重的应用程序。如果在播放音频时卡住，它会继续反复播放最后半秒。

唯一完全可靠地发生这种情况的情况是尝试在 VLC 中播放 H.264 视频时。其他编解码器播放大多正常。（我尝试启用 VLC 调试日志记录，但在播放导致其崩溃的视频时没有显示任何内容。）

唯一可靠的没有在恢复模式下启动时会发生这种情况。 （然后在 VLC 中播放相同的视频没有问题。）从 USB 驱动器启动时，Ubuntu 20.04 也能正常运行。

我花了几个小时查看各种日志，却没有找到任何看似相关的内容。

  • CPU：Intel® CPU @ 2.60GHz × 4
  • BIOS 版本：G1ET17WW (0.17)
  • 显卡：英特尔高清显卡 4000 (IVB GT2)
  • 内存：11.6 GB
  • GNOME 版本：3.36.8
  • 窗口系统：x11
  • 内核：5.8.0-44-generic

以下是我在其他类似问题中看到的所要求的各种信息。

结果swapon --show：

NAME      TYPE SIZE USED PRIO
/swapfile file   2G   0B   -2

结果blkid：

/dev/sda2: LABEL="system" UUID="69efbbf3-98d7-4173-b6c7-e72136f35001" TYPE="ext4" PARTLABEL="system" PARTUUID="4aad3c63-c551-40ef-9d2f-ad79166be270"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/loop3: TYPE="squashfs"
/dev/loop4: TYPE="squashfs"
/dev/loop5: TYPE="squashfs"
/dev/loop6: TYPE="squashfs"
/dev/loop7: TYPE="squashfs"
/dev/sda1: LABEL="swap" UUID="b2a9ac94-dd4a-465b-8889-3e7ccb9af0af" TYPE="swap" PARTLABEL="swap" PARTUUID="9cb305f2-1f73-4bb7-8da6-42a6124c8ee7"
/dev/sda3: LABEL_FATBOOT="EFI" LABEL="EFI" UUID="089D-C851" TYPE="vfat" PARTLABEL="efi" PARTUUID="180dac3f-322e-4023-a3c0-9bc4ed90a32b"
/dev/sdb: LABEL="fs-data" UUID="0199caea-12da-401a-bdf4-6b1cc96677d4" TYPE="ext4"
/dev/loop8: TYPE="squashfs"
/dev/loop9: TYPE="squashfs"
/dev/loop10: TYPE="squashfs"
/dev/loop11: TYPE="squashfs"
/dev/loop12: TYPE="squashfs"
/dev/loop13: TYPE="squashfs"
/dev/loop14: TYPE="squashfs"
/dev/loop15: TYPE="squashfs"
/dev/loop16: TYPE="squashfs"
/dev/loop17: TYPE="squashfs"
/dev/loop18: TYPE="squashfs"
/dev/loop19: TYPE="squashfs"
/dev/loop20: TYPE="squashfs"
/dev/loop21: TYPE="squashfs"
/dev/loop22: TYPE="squashfs"
/dev/loop23: TYPE="squashfs"
/dev/loop24: TYPE="squashfs"
/dev/loop25: TYPE="squashfs"
/dev/loop26: TYPE="squashfs"
/dev/loop27: TYPE="squashfs"
/dev/loop28: TYPE="squashfs"

结果lshw -c video：

  *-display                
       description: VGA compatible controller
       product: 3rd Gen Core processor Graphics Controller
       vendor: Intel Corporation
       physical id: 2
       bus info: pci@0000:00:02.0
       version: 05
       width: 64 bits
       clock: 33MHz
       capabilities: msi pm vga_controller bus_master cap_list rom
       configuration: driver=i915 latency=0
       resources: irq:32 memory:f0000000-f03fffff memory:e0000000-efffffff ioport:5000(size=64) memory:c0000-dffff

结果fstab：

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda2 during installation
UUID=69efbbf3-98d7-4173-b6c7-e72136f35001 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sda1 during installation

 UUID=089D-C851  /boot/efi       vfat    umask=0077      0       1
/swapfile                                 none            swap    sw              0       0
UUID=0199caea-12da-401a-bdf4-6b1cc96677d4 /media/fm/fs-data auto nosuid,nodev,nofail,x-gvfs-show 0 0

更新 1：

lsmod 中的视频部分（一旦删除“大小”和“使用者”值，恢复模式、USB 启动和正常启动之间的结果相同）

uvcvideo            
video               thinkpad_acpi,i915                                                                                                                                       
videobuf2_common    videobuf2_v4l2,uvcvideo                                                                                                                                  
videobuf2_memops    videobuf2_vmalloc                                                                                                                                        
videobuf2_v4l2      uvcvideo                                                                                                                                                 
videobuf2_vmalloc   uvcvideo                                                                                                                                                 
videodev            videobuf2_v4l2,uvcvideo,videobuf2_common

更新 2：

在我把硬盘换到另一台 ThinkPad 后，这个问题不再出现。这让我相信这是 BIOS 或硬件问题，而不是由内核引起的。

更新 3 包含更多详细信息：

（这些详细信息来自在不同的 ThinkPad 上使用相同的 HDD/Ubuntu 安装，而原来的 ThinkPad 在尝试更新 BIOS 时发生崩溃后正在商店接受治疗。）

交换文件设置和内核是相同的，但问题基本消失（尽管它仍然偶尔挂起）所以我认为问题主要是与硬件/BIOS 有关。

结果swapon -s：

Filename                Type        Size    Used    Priority
/swapfile                               file        2097148 0   -2

结果free -h：

              total        used        free      shared  buff/cache   available
Mem:          7.6Gi       3.1Gi       1.7Gi       810Mi       2.9Gi       3.5Gi
Swap:         2.0Gi          0B       2.0Gi

结果fdisk -l：

Disk /dev/loop0: 162.48 MiB, 170360832 bytes, 332736 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop1: 161.4 MiB, 168857600 bytes, 329800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop2: 138.77 MiB, 145489920 bytes, 284160 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop3: 99.21 MiB, 104026112 bytes, 203176 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop4: 55.39 MiB, 58073088 bytes, 113424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop5: 175.101 MiB, 184532992 bytes, 360416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop6: 161.42 MiB, 169254912 bytes, 330576 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop7: 55.48 MiB, 58159104 bytes, 113592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: Samsung SSD 860 
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 43B5902C-6EA9-4EB8-86AD-B643C582109B

Device        Start        End    Sectors  Size Type
/dev/sda1   1048576   49233919   48185344   23G Linux swap
/dev/sda2  49233920 1953523711 1904289792  908G Linux filesystem
/dev/sda3      2048    1048575    1046528  511M Microsoft basic data

Partition table entries are not in disk order.

Disk /dev/sdb: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000LM015-2E81
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk /dev/loop8: 98.36 MiB, 103129088 bytes, 201424 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop9: 175.38 MiB, 183885824 bytes, 359152 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop10: 175.37 MiB, 183881728 bytes, 359144 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop11: 162.89 MiB, 170778624 bytes, 333552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop12: 64.79 MiB, 67915776 bytes, 132648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop13: 164.65 MiB, 172634112 bytes, 337176 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop14: 51.2 MiB, 53501952 bytes, 104496 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop15: 217.92 MiB, 228478976 bytes, 446248 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop16: 64.36 MiB, 67477504 bytes, 131792 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop17: 64.6 MiB, 67170304 bytes, 131192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop18: 32.28 MiB, 33845248 bytes, 66104 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop19: 218.102 MiB, 229629952 bytes, 448496 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop20: 31.9 MiB, 32595968 bytes, 63664 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop21: 64.34 MiB, 67461120 bytes, 131760 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop22: 164.65 MiB, 172630016 bytes, 337168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop23: 137.17 MiB, 143831040 bytes, 280920 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop24: 20.45 MiB, 21434368 bytes, 41864 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop25: 190.73 MiB, 199974912 bytes, 390576 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop26: 175.101 MiB, 184532992 bytes, 360416 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop27: 51.4 MiB, 53522432 bytes, 104536 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk /dev/loop28: 20.5 MiB, 21487616 bytes, 41968 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

答案1

唯一不会发生这种情况的情况是在恢复模式下启动时。（然后在 VLC 中播放相同的视频没有问题。）从 USB 驱动器启动时，Ubuntu 20.04 也能正常运行。

如果我的怀疑是正确的，并且它只使用基本的通用驱动程序进行恢复和安装磁盘模式启动，那么这说明视频驱动程序存在问题。然后在安装到磁盘时，它使用特定于英特尔视频卡的不同驱动程序，那么谜团就解开了。尝试使用sudo lsmod并在所有启动模式下，在加载的模块中查找差异。

答案2

BIOS

联想 T430

bios 版本：G1ET17WW (0.17)

您的 BIOS 非常旧。有较新的 BIOS 可用这里或者这里。

注意：确认我拥有适合您型号的正确网页。

注意：更新 BIOS 之前请做好备份。

/swapfile 和交换分区 /dev/sda1

您有一个 2G 的 /swapfile，以及一个位于 /dev/sda1 上的交换分区。尽管swapon -s只显示了正在使用的 /swapfile，但我们需要根据您的配置将 /swapfile 大小更改为 4G，并删除gparted交换分区 /dev/sda1。

笔记：命令使用不当dd可能导致数据丢失。建议复制/粘贴。

在里面terminal...

sudo swapoff -a           # turn off swap
sudo rm -i /swapfile      # remove old /swapfile

sudo dd if=/dev/zero of=/swapfile bs=1M count=4096

sudo chmod 600 /swapfile  # set proper file protections
sudo mkswap /swapfile     # init /swapfile
sudo swapon /swapfile     # turn on swap
free -h                   # confirm 8G RAM and 4G swap

编辑 /dev/fstab，使用sudo -H gedit /etc/fstab或sudo pico /etc/fstab。

确认 /etc/fstab 中的此 /swapfile 行...并确认没有其他“交换”行...在此行中使用空格...确认没有制表符...

/swapfile  none  swap  sw  0  0

并删除此行的前导空格......

UUID=089D-C851  /boot/efi       vfat    umask=0077      0       1

保存文件。然后...

reboot                    # reboot and verify operation

然后用来gparted删除/dev/sda1交换分区。

然后再次重新启动。

三星 SSD 860

确保固件是最新的。使用Samsung Magician可下载的软件这里。

内存大小

您将内存显示为... 内存：11.6 GiB

但free -h显示你的内存为...Mem：7.6Gi

哪一个是准确的？

答案3

安装 ffmpeg 帮我解决了这个问题。 https://linuxhint.com/install-ffmpeg-ubuntu/

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