After I log in as a user ,there is a freezed black screen for 5s . How to get rid of it? I think I messed with the gdm. Previously I tried to change my login screen background but failed.
One might try to reverse any changes made. If the screen was working properly before the changes then the process of backing out those changes might fix it.
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I think these services are causing problem.
That is impossible to tell what happens since you posted an image (which is not searchable) and the left side of the image is cut off so we cannot see the times reported. The right side obviously goes beyond the screen – again we cannot see the full data.
When posting any type of text it is much preferred that one uses copy&paste so the full text is actually contained in the post and is searchable as well as complete.
[rafidahmed@fedora ~]$ systemd-analyze blame
40.028s dnf-makecache.service
14.994s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart2.device
14.994s dev-disk-by\x2dpartuuid-46cc9e40\x2d0983\x2d4881\x2da178\x2da8743379b5c>
14.994s dev-sdb2.device
14.994s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
14.994s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart2.device
14.994s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart2.device
14.994s dev-disk-by\x2duuid-F02047B020477C9A.device
14.994s dev-disk-by\x2ddiskseq-2\x2dpart2.device
14.994s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart2.device
14.713s dev-sdb3.device
14.713s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart3.device
14.713s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart3.device
14.713s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart3.device
14.713s dev-disk-by\x2duuid-3680494A80491233.device
14.713s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart3.device
14.713s dev-disk-by\x2dpartuuid-b751932a\x2d6522\x2d47d0\x2da2a8\x2deaf79112748>
14.713s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
14.713s dev-disk-by\x2ddiskseq-2\x2dpart3.device
14.562s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart4.device
14.562s dev-disk-by\x2dpartlabel-EFI\x5cx20System\x5cx20Partition.device
14.562s dev-disk-by\x2duuid-5909\x2d8F63.device
14.562s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart4.device
14.562s dev-sdb4.device
14.562s dev-disk-by\x2ddiskseq-2\x2dpart4.device
14.562s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
14.562s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart4.device
14.562s dev-disk-by\x2dpartuuid-8a2b91f7\x2ddc21\x2d4f1d\x2dae27\x2d170b6546655>
14.562s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart4.device
14.471s dev-disk-by\x2dpartlabel-Basic\x5cx20data\x5cx20partition.device
14.433s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart1.device
14.433s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart1.device
14.433s dev-sdb1.device
14.433s dev-disk-by\x2dpartuuid-50a8f9b7\x2d7a20\x2d4a84\x2dba79\x2dda82062c5e1>
14.433s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
14.433s dev-disk-by\x2ddiskseq-2\x2dpart1.device
14.433s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart1.device
14.433s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart1.device
14.433s dev-disk-by\x2duuid-B830460B3045D154.device
13.642s dev-disk-by\x2ddiskseq-2\x2dpart5.device
13.642s dev-disk-by\x2dpartuuid-c458ae37\x2dbf2a\x2d4aa8\x2d8122\x2da2a3144de2b>
13.642s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart5.device
13.642s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
13.642s dev-sdb5.device
13.642s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart5.device
13.642s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart5.device
13.642s dev-disk-by\x2duuid-e64f3b04\x2dd7d4\x2d46e4\x2d9d4c\x2d3916f5dbc190.de>
13.642s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart5.device
12.483s sys-devices-pci0000:00-0000:00:17.0-ata1-host0-target0:0:0-0:0:0:0-bloc>
12.483s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1\x2dpart2.device
12.483s dev-disk-by\x2dpartuuid-c680f257\x2d02.device
12.483s dev-sda2.device
12.483s dev-disk-by\x2did-ata\x2dTEAM_T253X2128G_TPBF2206070020300178\x2dpart2.>
12.483s dev-disk-by\x2duuid-C2F28571F2856A8D.device
12.483s dev-disk-by\x2ddiskseq-1\x2dpart2.device
12.483s dev-disk-by\x2dlabel-SSD\x5cx20WIN\x2d10.device
12.483s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1.0\x2dpart2.device
12.467s dev-disk-by\x2dpartuuid-c680f257\x2d03.device
12.467s dev-sda3.device
12.467s dev-disk-by\x2ddiskseq-1\x2dpart3.device
12.467s sys-devices-pci0000:00-0000:00:17.0-ata1-host0-target0:0:0-0:0:0:0-bloc>
12.467s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1.0\x2dpart3.device
12.467s dev-disk-by\x2duuid-DE1EFC871EFC59CB.device
12.467s dev-disk-by\x2did-ata\x2dTEAM_T253X2128G_TPBF2206070020300178\x2dpart3.>
12.467s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1\x2dpart3.device
12.440s dev-disk-by\x2ddiskseq-1\x2dpart1.device
12.440s dev-disk-by\x2dpartuuid-c680f257\x2d01.device
12.440s dev-disk-by\x2did-ata\x2dTEAM_T253X2128G_TPBF2206070020300178\x2dpart1.>
12.440s dev-disk-by\x2dlabel-System\x5cx20Reserved.device
12.440s sys-devices-pci0000:00-0000:00:17.0-ata1-host0-target0:0:0-0:0:0:0-bloc>
12.440s dev-sda1.device
12.440s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1.0\x2dpart1.device
12.440s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1\x2dpart1.device
12.439s dev-disk-by\x2duuid-2C5284085283D4CC.device
12.418s dev-disk-by\x2did-ata\x2dTEAM_T253X2128G_TPBF2206070020300178.device
12.418s sys-devices-pci0000:00-0000:00:17.0-ata1-host0-target0:0:0-0:0:0:0-bloc>
12.418s dev-sda.device
12.418s dev-disk-by\x2ddiskseq-1.device
12.418s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1.0.device
12.418s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d1.device
12.299s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z\x2dpart6.device
12.299s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937\x2dpart6.device
12.299s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2\x2dpart6.device
12.299s dev-disk-by\x2dpartuuid-84ca8330\x2d89fe\x2d49e7\x2d8359\x2d463a21cce74>
12.299s dev-disk-by\x2duuid-66d9b217\x2de79f\x2d45e9\x2d8b2d\x2de37c3e89effb.de>
12.299s dev-disk-by\x2dlabel-fedora_localhost\x2dlive.device
12.299s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0\x2dpart6.device
12.299s dev-disk-by\x2ddiskseq-2\x2dpart6.device
12.299s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
12.299s dev-sdb6.device
12.254s sys-module-fuse.device
12.199s dev-sdb.device
12.199s sys-devices-pci0000:00-0000:00:17.0-ata2-host1-target1:0:0-1:0:0:0-bloc>
12.199s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.device
12.199s dev-disk-by\x2dpath-pci\x2d0000:00:17.0\x2data\x2d2.0.device
12.199s dev-disk-by\x2did-wwn\x2d0x5000c500ac812937.device
12.199s dev-disk-by\x2did-ata\x2dST1000LM035\x2d1RK172_WDETA69Z.device
12.199s dev-disk-by\x2ddiskseq-2.device
12.186s dev-ttyS0.device
12.185s sys-devices-platform-serial8250-tty-ttyS0.device
12.180s dev-ttyS1.device
12.180s sys-devices-platform-serial8250-tty-ttyS1.device
12.176s sys-devices-platform-serial8250-tty-ttyS16.device
12.176s dev-ttyS16.device
12.175s dev-ttyS24.device
12.175s sys-devices-platform-serial8250-tty-ttyS24.device
12.174s sys-devices-platform-serial8250-tty-ttyS17.device
12.174s dev-ttyS17.device
12.174s sys-devices-platform-serial8250-tty-ttyS11.device
12.174s dev-ttyS11.device
12.174s sys-devices-platform-serial8250-tty-ttyS10.device
12.174s dev-ttyS10.device
12.173s sys-devices-platform-serial8250-tty-ttyS12.device
12.173s dev-ttyS12.device
12.172s dev-ttyS14.device
12.172s sys-devices-platform-serial8250-tty-ttyS14.device
12.172s dev-ttyS21.device
12.172s sys-devices-platform-serial8250-tty-ttyS21.device
12.171s sys-devices-platform-serial8250-tty-ttyS23.device
12.171s dev-ttyS23.device
12.169s dev-ttyS22.device
12.169s sys-devices-platform-serial8250-tty-ttyS22.device
12.169s sys-devices-platform-serial8250-tty-ttyS2.device
12.169s dev-ttyS2.device
12.167s dev-ttyS15.device
12.167s sys-devices-platform-serial8250-tty-ttyS15.device
12.167s sys-devices-platform-serial8250-tty-ttyS18.device
12.167s dev-ttyS18.device
12.164s dev-ttyS28.device
12.164s sys-devices-platform-serial8250-tty-ttyS28.device
12.163s sys-devices-platform-serial8250-tty-ttyS13.device
12.163s dev-ttyS13.device
12.162s sys-devices-platform-serial8250-tty-ttyS31.device
12.162s dev-ttyS31.device
12.161s dev-ttyS30.device
12.161s sys-devices-platform-serial8250-tty-ttyS30.device
12.161s sys-devices-platform-serial8250-tty-ttyS19.device
12.161s dev-ttyS19.device
12.160s dev-ttyS5.device
12.160s sys-devices-platform-serial8250-tty-ttyS5.device
12.159s sys-devices-platform-serial8250-tty-ttyS25.device
12.159s dev-ttyS25.device
12.159s dev-ttyS26.device
12.159s sys-devices-platform-serial8250-tty-ttyS26.device
12.158s dev-ttyS7.device
12.158s sys-devices-platform-serial8250-tty-ttyS7.device
I see nothing there that would appear an issue. The boot completes in 15 seconds except for the piece with dnf which depends on downloading metadata and completes in 40 seconds.