我是 Ubuntu Studio 用户，也是普通的 Linux 新手。我在我的 Dell Vostro 400 Q6600 四核电脑上安装了最新的 Ubuntu Studio，它运行了好几个月，现在却无法使用了。当我启动时，甚至打开文件管理器都要花几分钟。打开一个程序要花很长时间。打开一段时间后，速度似乎会快一点，但基本上无法使用。
当然，我已经检查了这里的所有答案，但对我而言，没有一个有用。运行top显示的进程列表跳转得如此之快，我甚至无法阅读它，我甚至不知道我应该寻找什么。我添加的唯一程序是 Geany 和 Google Chrome，后来我删除了它们，但问题仍然存在。
有什么万无一失的方法可以追踪问题并修复它？重新安装它会更容易吗？提前谢谢。
编辑：
以下是 Raffa 请求的一些终端输出：
免费-m：
fw@fw-Vostro-400:~$ free -m
total used free shared buff/cache available
Mem: 3940 412 2974 2 553 3303
Swap: 2047 0 2047
DF-H：
fw@fw-Vostro-400:~$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 2.0G 0 2.0G 0% /dev
tmpfs 395M 1.4M 393M 1% /run
/dev/sdc1 219G 63G 145G 31% /
tmpfs 2.0G 0 2.0G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup
tmpfs 395M 20K 395M 1% /run/user/1000
另外，df -m：
fw@fw-Vostro-400:~$ df -m
Filesystem 1M-blocks Used Available Use% Mounted on
udev 1947 0 1947 0% /dev
tmpfs 395 2 393 1% /run
/dev/sdc1 223358 64034 147910 31% /
tmpfs 1971 0 1971 0% /dev/shm
tmpfs 5 1 5 1% /run/lock
tmpfs 1971 0 1971 0% /sys/fs/cgroup
tmpfs 395 1 395 1% /run/user/1000
来自 dstat 的更多终端输出：
fw@fw-Vostro-400:~$ dstat 3 50
You did not select any stats, using -cdngy by default.
--total-cpu-usage-- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai stl| read writ| recv send| in out | int csw
2 0 71 26 0| 236k 69k| 0 0 | 0 0 | 231 568
0 0 96 4 0| 0 0 | 0 0 | 0 0 | 119 302
0 0 90 10 0| 0 12k| 0 0 | 0 0 | 116 302
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 101 234
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 117 297
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 97 233
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 121 311
0 0 98 2 0| 0 0 | 0 0 | 0 0 | 103 241
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 110 273
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 127 319
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 95 231
0 0 94 6 0| 0 0 | 0 0 | 0 0 | 118 305
0 0 98 2 0| 0 0 | 0 0 | 0 0 | 96 233
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 116 292
0 0 88 12 0| 0 9557B| 0 0 | 0 0 | 101 253
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 124 313
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 113 276
0 0 94 6 0| 0 0 | 0 0 | 0 0 | 118 299
0 0 98 2 0| 0 0 | 0 0 | 0 0 | 101 245
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 114 292
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 96 232
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 121 315
0 0 94 5 0| 0 0 | 0 0 | 0 0 | 100 246
--total-cpu-usage-- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai stl| read writ| recv send| in out | int csw
0 0 96 3 0| 0 0 | 0 0 | 0 0 | 112 280
0 0 97 2 0| 0 0 | 0 0 | 0 0 | 120 292
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 96 238
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 110 280
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 102 243
0 0 96 3 0| 0 0 | 0 0 | 0 0 | 119 300
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 105 257
0 0 95 4 0| 0 0 | 0 0 | 0 0 | 115 291
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 115 276
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 116 299
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 100 241
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 112 291
0 0 95 4 0| 0 0 | 0 0 | 0 0 | 102 244
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 106 276
0 0 98 2 0| 0 0 | 0 0 | 0 0 | 106 259
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 104 254
0 0 96 3 0| 0 0 | 0 0 | 0 0 | 118 301
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 96 234
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 121 325
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 98 242
0 0 96 4 0| 0 0 | 0 0 | 0 0 | 117 296
0 0 96 3 0| 0 0 | 0 0 | 0 0 | 97 243
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 116 294
--total-cpu-usage-- -dsk/total- -net/total- ---paging-- ---system--
usr sys idl wai stl| read writ| recv send| in out | int csw
0 0 94 6 0| 0 0 | 0 0 | 0 0 | 102 248
0 0 97 3 0| 0 0 | 0 0 | 0 0 | 117 305
0 0 97 2 0| 0 0 | 0 0 | 0 0 | 99 244
0 0 95 5 0| 0 0 | 0 0 | 0 0 | 120 314
fw@fw-Vostro-400:~$ dstat --top-cpu --top-cputime --top-cputime-avg --top-io --proc-count --thermal 3 50
Module dstat_thermal failed to load. (Needs kernel ACPI or IBM-ACPI support)
Terminal width too small, trimming output.
-most-expensive- --highest-total-- -highest-average- ----most-expensive---->
cpu process | cputime process | cputime process | i/o process >
Xorg 0.0|Xorg 693|kerneloops 229|bash 36k 21k>
Xorg 0.3|Xorg 3194|xfce4-termina 126|xfce4-termi 314B 9141B>
Xorg 0.2|Xorg 1959|Xorg 93.3|xfce4-termi 203B 4845B>
ksoftirqd/1 0.2|xfce4-termina1750|kerneloops 395|xfce4-termi 203B 4959B>
xfce4-termina0.2|Xorg 2051|irqbalance 122|xfce4-termi 201B 4996B>
|Xorg 1966|Xorg 81.9|xfce4-termi 198B 4821B>
Xorg 0.3|Xorg 1909|Xorg 95.5|xfce4-termi 201B 4840B>
xfce4-termina0.3|Xorg 2166|Xorg 103|xfce4-termi 203B 4899B>
Xorg 0.2|Xorg 2061|irqbalance 122|xfce4-termi 201B 5029B>
xfce4-termina0.2|Xorg 2003|Xorg 100|xfce4-termi 203B 4972B>
Xorg 0.2|Xorg 2125|Xorg 106|xfce4-termi 201B 4963B>
Xorg 0.2|Xorg 2068|irqbalance 127|xfce4-termi 203B 4991B>
colord-sane 3.8|colord-sane 76|colord-sane 231|xfce4-termi 203B 5212B>
Xorg 0.2|Xorg 2393|Xorg 109|xfce4-termi 203B 5121B>
xfce4-termina0.2|Xorg 1755|xfce4-termina92.1|xfce4-termi 203B 5104B>
xfwm4 0.2|Xorg 2135|Xorg 102|xfce4-termi 203B 5185B>
xfce4-termina0.2|Xorg 2218|systemd 495|xfce4-termi 203B 5287B>
Xorg 0.3|Xorg 2209|Xorg 105|xfce4-termi 203B 5220B>
|Xorg 2194|irqbalance 128|xfce4-termi 198B 5307B>
xfce4-termina0.2|Xorg 2374|Xorg 113|xfce4-termi 198B 5464B>
Xorg 0.2|Xorg 2528|kerneloops 397|xfce4-termi 203B 5632B>
xfce4-termina0.2|Xorg 2453|irqbalance 122|xfce4-termi 201B 5792B>
|Xorg 2365|Xorg 113|xfce4-termi 198B 5913B>
-most-expensive- --highest-total-- -highest-average- ----most-expensive---->
cpu process | cputime process | cputime process | i/o process >
Xorg 0.2|Xorg 3698|kerneloops 448|xfce4-termi 315B 10k>
Xorg 0.3|xfce4-termina2413|xfce4-termina 142|xfce4-termi 203B 5865B>
xfce4-termina0.2|xfce4-termina2392|xfce4-termina 133|xfce4-termi 201B 5732B>
xfce4-termina0.2|xfce4-termina2532|xfce4-termina 158|xfce4-termi 201B 5675B>
Xorg 0.2|xfce4-termina2486|xfce4-termina 146|xfce4-termi 201B 5697B>
xfce4-termina0.2|Xorg 2543|xfce4-termina 125|xfce4-termi 201B 5704B>
xfce4-termina0.2|xfce4-termina2384|xfce4-termina 140|xfce4-termi 201B 5747B>
|Xorg 1812|Xorg 90.6|xfce4-termi 198B 5692B>
Xorg 0.2|Xorg 2247|irqbalance 126|xfce4-termi 198B 5667B>
xfce4-termina0.2|Xorg 2350|Xorg 112|xfce4-termi 201B 5807B>
Xorg 0.2|Xorg 2529|Xorg 115|xfce4-termi 201B 5805B>
Xorg 0.2|Xorg 1885|irqbalance 120|xfce4-termi 201B 5789B>
xfce4-termina0.2|Xorg 2382|Xorg 113|xfce4-termi 203B 5863B>
Xorg 0.2|Xorg 2330|Xorg 111|xfce4-termi 201B 5783B>
xfce4-termina0.2|Xorg 2362|Xorg 112|xfce4-termi 201B 5788B>
irq/23-ehci_h0.2|Xorg 2435|irqbalance 121|xfce4-termi 198B 5763B>
xfwm4 0.2|Xorg 2306|Xorg 110|xfce4-termi 201B 5783B>
Xorg 0.3|Xorg 2481|kerneloops 397|xfce4-termi 201B 5816B>
kworker/1:1H-0.2|Xorg 2340|irqbalance 110|xfce4-termi 198B 5783B>
xfce4-termina0.2|Xorg 2395|Xorg 114|xfce4-termi 201B 5916B>
|Xorg 2007|kerneloops 397|xfce4-termi 198B 5757B>
Xorg 0.3|Xorg 2357|Xorg 112|xfce4-termi 198B 5757B>
xfce4-termina0.2|Xorg 1931|Xorg 91.9|xfce4-termi 201B 5980B>
-most-expensive- --highest-total-- -highest-average- ----most-expensive---->
cpu process | cputime process | cputime process | i/o process >
Xorg 0.2|Xorg 3521|xfce4-termina98.7|xfce4-termi 317B 11k>
xfce4-termina0.2|Xorg 2474|Xorg 108|xfce4-termi 201B 5845B>
Xorg 0.2|Xorg 2471|irqbalance 125|xfce4-termi 203B 5853B>
Xorg 0.2|Xorg 2348|Xorg 107|xfce4-termi 201B 5769B>
Raffa 建议的最新终端输出：
fw@fw-Vostro-400:~$ tail -50 /var/log/kern.log
Mar 31 23:20:27 fw-Vostro-400 kernel: [ 86.454459] audit: type=1400 audit(1585689627.893:37): apparmor="DENIED" operation="open" profile="/usr/bin/evince-thumbnailer" name="/tmp/tumbler-X611TI0.png" pid=1595 comm="evince-thumbnai" requested_mask="wc" denied_mask="wc" fsuid=1000 ouid=1000
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 116.923649] usb 2-4: new high-speed USB device number 4 using ehci-pci
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.052736] usb 2-4: New USB device found, idVendor=2e04, idProduct=c025, bcdDevice= 3.18
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.052739] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.052741] usb 2-4: Product: Android
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.052743] usb 2-4: Manufacturer: Android
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.052745] usb 2-4: SerialNumber: PLEGAR1790822473
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.054494] usb-storage 2-4:1.1: USB Mass Storage device detected
Mar 31 23:20:58 fw-Vostro-400 kernel: [ 117.055788] scsi host5: usb-storage 2-4:1.1
Mar 31 23:20:59 fw-Vostro-400 kernel: [ 118.093384] scsi 5:0:0:0: CD-ROM Linux File-CD Gadget 0318 PQ: 0 ANSI: 2
Mar 31 23:20:59 fw-Vostro-400 kernel: [ 118.094362] sr 5:0:0:0: Power-on or device reset occurred
Mar 31 23:20:59 fw-Vostro-400 kernel: [ 118.095991] sr 5:0:0:0: [sr1] scsi-1 drive
Mar 31 23:20:59 fw-Vostro-400 kernel: [ 118.096688] sr 5:0:0:0: Attached scsi CD-ROM sr1
Mar 31 23:20:59 fw-Vostro-400 kernel: [ 118.096787] sr 5:0:0:0: Attached scsi generic sg8 type 5
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.071531] usb 2-4: USB disconnect, device number 4
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.339691] usb 2-4: new high-speed USB device number 5 using ehci-pci
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.468616] usb 2-4: New USB device found, idVendor=2e04, idProduct=c022, bcdDevice= 3.18
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.468619] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.468621] usb 2-4: Product: Android
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.468623] usb 2-4: Manufacturer: Android
Mar 31 23:21:07 fw-Vostro-400 kernel: [ 126.468625] usb 2-4: SerialNumber: PLEGAR1790822473
Mar 31 23:21:11 fw-Vostro-400 kernel: [ 130.414777] usbcore: registered new interface driver cdc_ether
Mar 31 23:21:15 fw-Vostro-400 kernel: [ 133.640251] rndis_host 2-4:1.0 usb0: register 'rndis_host' at usb-0000:00:1d.7-4, RNDIS device, da:df:e8:49:c7:bc
Mar 31 23:21:15 fw-Vostro-400 kernel: [ 133.640285] usbcore: registered new interface driver rndis_host
Mar 31 23:21:15 fw-Vostro-400 kernel: [ 133.667478] rndis_host 2-4:1.0 enp0s29f7u4: renamed from usb0
Mar 31 23:21:32 fw-Vostro-400 kernel: [ 150.644620] perf: interrupt took too long (2510 > 2500), lowering kernel.perf_event_max_sample_rate to 79000
Mar 31 22:27:37 fw-Vostro-400 kernel: [ 515.261379] perf: interrupt took too long (3156 > 3137), lowering kernel.perf_event_max_sample_rate to 63000
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.641248] usb 2-3: new high-speed USB device number 6 using ehci-pci
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780468] usb 2-3: New USB device found, idVendor=ffff, idProduct=5678, bcdDevice= 2.00
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780471] usb 2-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780473] usb 2-3: Product: Disk 2.0
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780475] usb 2-3: Manufacturer: USB
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780476] usb 2-3: SerialNumber: 92070804D5158059117
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.780872] usb-storage 2-3:1.0: USB Mass Storage device detected
Mar 31 22:55:19 fw-Vostro-400 kernel: [ 2176.783351] scsi host5: usb-storage 2-3:1.0
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.793613] scsi 5:0:0:0: Direct-Access VendorCo ProductCode 2.00 PQ: 0 ANSI: 4
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.793984] sd 5:0:0:0: Attached scsi generic sg8 type 0
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.797824] sd 5:0:0:0: [sdh] 7864320 512-byte logical blocks: (4.03 GB/3.75 GiB)
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.798475] sd 5:0:0:0: [sdh] Write Protect is off
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.798478] sd 5:0:0:0: [sdh] Mode Sense: 33 00 00 00
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.799098] sd 5:0:0:0: [sdh] No Caching mode page found
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.799103] sd 5:0:0:0: [sdh] Assuming drive cache: write through
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.803864] sdh: sdh1
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.806470] sd 5:0:0:0: [sdh] Attached SCSI removable disk
Mar 31 22:55:26 fw-Vostro-400 kernel: [ 2183.780099] FAT-fs (sdh1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
Mar 31 22:55:51 fw-Vostro-400 kernel: [ 2208.543640] usb 2-4: USB disconnect, device number 5
Mar 31 22:55:51 fw-Vostro-400 kernel: [ 2208.545123] rndis_host 2-4:1.0 enp0s29f7u4: unregister 'rndis_host' usb-0000:00:1d.7-4, RNDIS device
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.115400] usb 2-3: USB disconnect, device number 6
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.115996] print_req_error: I/O error, dev sdh, sector 2049 flags 1
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.116001] Buffer I/O error on dev sdh1, logical block 1, lost async page write
fw@fw-Vostro-400:~$ ls -l /var/crash/
total 0
fw@fw-Vostro-400:~$ tail -50 /var/log/syslog
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.798478] sd 5:0:0:0: [sdh] Mode Sense: 33 00 00 00
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.799098] sd 5:0:0:0: [sdh] No Caching mode page found
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.799103] sd 5:0:0:0: [sdh] Assuming drive cache: write through
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.803864] sdh: sdh1
Mar 31 22:55:20 fw-Vostro-400 kernel: [ 2177.806470] sd 5:0:0:0: [sdh] Attached SCSI removable disk
Mar 31 22:55:26 fw-Vostro-400 kernel: [ 2183.780099] FAT-fs (sdh1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
Mar 31 22:55:27 fw-Vostro-400 systemd[1]: Created slice system-clean\x2dmount\x2dpoint.slice.
Mar 31 22:55:27 fw-Vostro-400 systemd[1]: Started Clean the /media/fw/UBUNTU-STUD mount point.
Mar 31 22:55:27 fw-Vostro-400 udisksd[599]: Mounted /dev/sdh1 at /media/fw/UBUNTU-STUD on behalf of uid 1000
Mar 31 22:55:32 fw-Vostro-400 systemd[1]: systemd-hostnamed.service: Succeeded.
Mar 31 22:55:51 fw-Vostro-400 kernel: [ 2208.543640] usb 2-4: USB disconnect, device number 5
Mar 31 22:55:51 fw-Vostro-400 kernel: [ 2208.545123] rndis_host 2-4:1.0 enp0s29f7u4: unregister 'rndis_host' usb-0000:00:1d.7-4, RNDIS device
Mar 31 22:55:51 fw-Vostro-400 dhclient[1694]: receive_packet failed on enp0s29f7u4: Network is down
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Interface enp0s29f7u4.IPv6 no longer relevant for mDNS.
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Leaving mDNS multicast group on interface enp0s29f7u4.IPv6 with address fe80::4017:82c0:893:3ed8.
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Interface enp0s29f7u4.IPv4 no longer relevant for mDNS.
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Leaving mDNS multicast group on interface enp0s29f7u4.IPv4 with address 192.168.42.215.
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Withdrawing address record for fe80::4017:82c0:893:3ed8 on enp0s29f7u4.
Mar 31 22:55:51 fw-Vostro-400 avahi-daemon[602]: Withdrawing address record for 192.168.42.215 on enp0s29f7u4.
Mar 31 22:55:51 fw-Vostro-400 NetworkManager[613]: <info> [1585688151.0440] device (enp0s29f7u4): state change: activated -> unmanaged (reason 'removed', sys-iface-state: 'removed')
Mar 31 22:55:51 fw-Vostro-400 whoopsie[1425]: [22:55:51] Cannot reach: https://daisy.ubuntu.com
Mar 31 22:55:51 fw-Vostro-400 whoopsie[1425]: [22:55:51] offline
Mar 31 22:55:51 fw-Vostro-400 whoopsie[1425]: [22:55:51] Cannot reach: https://daisy.ubuntu.com
Mar 31 22:55:51 fw-Vostro-400 NetworkManager[613]: <info> [1585688151.0509] dhcp4 (enp0s29f7u4): canceled DHCP transaction, DHCP client pid 1694
Mar 31 22:55:51 fw-Vostro-400 NetworkManager[613]: <info> [1585688151.0510] dhcp4 (enp0s29f7u4): state changed bound -> done
Mar 31 22:55:51 fw-Vostro-400 NetworkManager[613]: <info> [1585688151.0598] manager: NetworkManager state is now DISCONNECTED
Mar 31 22:55:52 fw-Vostro-400 dbus-daemon[598]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.14' (uid=0 pid=613 comm="/usr/sbin/NetworkManager --no-daemon " label="unconfined")
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: Starting Network Manager Script Dispatcher Service...
Mar 31 22:55:52 fw-Vostro-400 dbus-daemon[598]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Mar 31 22:55:52 fw-Vostro-400 nm-dispatcher: req:1 'down' [enp0s29f7u4]: new request (1 scripts)
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: Started Network Manager Script Dispatcher Service.
Mar 31 22:55:52 fw-Vostro-400 nm-dispatcher: req:1 'down' [enp0s29f7u4]: start running ordered scripts...
Mar 31 22:55:52 fw-Vostro-400 nm-dispatcher: req:2 'connectivity-change': new request (1 scripts)
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.115400] usb 2-3: USB disconnect, device number 6
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.115996] print_req_error: I/O error, dev sdh, sector 2049 flags 1
Mar 31 22:55:52 fw-Vostro-400 kernel: [ 2210.116001] Buffer I/O error on dev sdh1, logical block 1, lost async page write
Mar 31 22:55:52 fw-Vostro-400 udisksd[599]: Cleaning up mount point /media/fw/UBUNTU-STUD (device 8:113 no longer exists)
Mar 31 22:55:52 fw-Vostro-400 systemd[1096]: media-fw-UBUNTU\x2dSTUD.mount: Succeeded.
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: media-fw-UBUNTU\x2dSTUD.mount: Succeeded.
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: Stopping Clean the /media/fw/UBUNTU-STUD mount point...
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: clean-mount-point@media-fw-UBUNTU\x2dSTUD.service: Succeeded.
Mar 31 22:55:52 fw-Vostro-400 systemd[1]: Stopped Clean the /media/fw/UBUNTU-STUD mount point.
Mar 31 22:55:53 fw-Vostro-400 NetworkManager[613]: <warn> [1585688153.6217] dns-sd-resolved[0x557b119a4820]: Failed: GDBus.Error:org.freedesktop.resolve1.NoSuchLink: Link 3 not known
Mar 31 22:55:53 fw-Vostro-400 NetworkManager[613]: <warn> [1585688153.6218] dns-sd-resolved[0x557b119a4820]: Failed: GDBus.Error:org.freedesktop.resolve1.NoSuchLink: Link 3 not known
Mar 31 22:55:53 fw-Vostro-400 NetworkManager[613]: message repeated 2 times: [ <warn> [1585688153.6218] dns-sd-resolved[0x557b119a4820]: Failed: GDBus.Error:org.freedesktop.resolve1.NoSuchLink: Link 3 not known]
Mar 31 22:55:53 fw-Vostro-400 nm-dispatcher: req:2 'connectivity-change': start running ordered scripts...
Mar 31 22:56:03 fw-Vostro-400 PackageKit: daemon quit
Mar 31 22:56:03 fw-Vostro-400 systemd[1]: packagekit.service: Main process exited, code=killed, status=15/TERM
Mar 31 22:56:03 fw-Vostro-400 systemd[1]: packagekit.service: Succeeded.
Mar 31 22:56:04 fw-Vostro-400 systemd[1]: NetworkManager-dispatcher.service: Succeeded.
fw@fw-Vostro-400:~$ lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 36 bits physical, 48 bits virtual
CPU(s): 2
On-line CPU(s) list: 0,1
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 23
Model name: Intel(R) Core(TM)2 Duo CPU E8300 @ 2.83GHz
Stepping: 6
CPU MHz: 2046.626
CPU max MHz: 2831.0000
CPU min MHz: 1998.0000
BogoMIPS: 5652.04
Virtualisation: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 6144K
NUMA node0 CPU(s): 0,1
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm pti tpr_shadow vnmi flexpriority dtherm
fw@fw-Vostro-400:~$ tail -50 /var/log/Xorg*.log
tail: option used in invalid context -- 5
fw@fw-Vostro-400:~$ sudo smartctl --all /dev/sdc
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-5.0.0-32-lowlatency] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Device Model: KINGSTON SA400S37240G
Serial Number: 50026B76827DDD50
LU WWN Device Id: 5 0026b7 6827ddd50
Firmware Version: SBFKB1D2
User Capacity: 240,057,409,536 bytes [240 GB]
Sector Size: 512 bytes logical/physical
Rotation Rate: Solid State Device
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: ACS-3 T13/2161-D revision 4
SATA Version is: SATA 3.2, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is: Tue Mar 31 23:02:52 2020 CEST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (65535) seconds.
Offline data collection
capabilities: (0x11) SMART execute Offline immediate.
No Auto Offline data collection support.
Suspend Offline collection upon new
command.
No Offline surface scan supported.
Self-test supported.
No Conveyance Self-test supported.
No Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 30) minutes.
SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x0032 000 100 000 Old_age Always - 0
9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 1916
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 830
148 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0
149 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0
167 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 0
168 Unknown_Attribute 0x0012 100 100 000 Old_age Always - 0
169 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 16
170 Unknown_Attribute 0x0000 100 100 010 Old_age Offline - 11
172 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 0
173 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 655375
181 Program_Fail_Cnt_Total 0x0032 100 100 000 Old_age Always - 0
182 Erase_Fail_Count_Total 0x0000 100 100 000 Old_age Offline - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
192 Power-Off_Retract_Count 0x0012 100 100 000 Old_age Always - 382
194 Temperature_Celsius 0x0022 076 063 000 Old_age Always - 24 (Min/Max 14/37)
196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 0
199 UDMA_CRC_Error_Count 0x0032 100 100 000 Old_age Always - 0
218 Unknown_Attribute 0x0032 100 100 000 Old_age Always - 1
231 Temperature_Celsius 0x0000 001 001 000 Old_age Offline - 99
233 Media_Wearout_Indicator 0x0032 100 100 000 Old_age Always - 1069
241 Total_LBAs_Written 0x0032 100 100 000 Old_age Always - 716
242 Total_LBAs_Read 0x0032 100 100 000 Old_age Always - 1064
244 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 10
245 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 15
246 Unknown_Attribute 0x0000 100 100 000 Old_age Offline - 78896
SMART Error Log Version: 1
No Errors Logged
SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]
Selective Self-tests/Logging not supported
这是的 Pastebin tail -n 50 /var/log/Xorg*.log：https://pastebin.com/QBTrzXEg
fw@fw-Vostro-400:~$ lspci | grep ' VGA '
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV630 XT [Radeon HD 2600 XT]