Forum Xubuntu

Bonjour,
Aprés mise à jour Xubuntu par gestionnaire de mise à jour de 14.04 vers 14.10 (dernière version)
je constate un ralentissement très important .

Ma config :
System manufacturer System Product Name/A8N-SLI, BIOS ASUS A8N-SLI ACPI BIOS Revision 1014-002 11/09/2005
Processeur AMD 3800+
Memory: 2044092K/2096696K available (6540K kernel code, 641K rwdata, 2764K rodata, 876K init, 924K bss, 52604K reserved, 1183688K highmem)
Linux pc-famille 3.13.0-40-generic #69-Ubuntu SMP Thu Nov 13 17:56:26 UTC 2014 i686 athlon i686 GNU/Linux

Affichage infos par dmesg sur le(s) problème(s) :

1.700310] scsi 2:0:0:0: Direct-Access ATA MAXTOR STM325031 3.AA PQ: 0 ANSI: 5
[ 1.700616] sd 2:0:0:0: [sda] 488397168 512-byte logical blocks: (250 GB/232 GiB)
[ 1.700675] sd 2:0:0:0: [sda] Write Protect is off
[ 1.700678] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.700704] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.701097] sd 2:0:0:0: Attached scsi generic sg2 type 0
[ 1.705060] ata5.00: configured for UDMA/133
[ 1.717701] sda: sda1
[ 1.717997] sd 2:0:0:0: [sda] Attached SCSI disk
[ 1.736477] forcedeth 0000:00:0a.0: ifname eth0, PHY OUI 0x5043 @ 9, addr 00:15:f2:1e:f4:d2
[ 1.736480] forcedeth 0000:00:0a.0: highdma csum gbit lnktim desc-v3
[ 1.756635] input: PS2++ Logitech MX Mouse as /devices/platform/i8042/serio1/input/input5
[ 1.792102] firewire_core 0000:05:0b.0: created device fw0: GUID 0011d80000730717, S400
[ 2.012026] ata4: SATA link down (SStatus 0 SControl 300)
[ 2.012164] scsi 4:0:0:0: Direct-Access ATA Maxtor 7L250S0 BACE PQ: 0 ANSI: 5
[ 2.012334] sd 4:0:0:0: [sdb] 490234752 512-byte logical blocks: (251 GB/233 GiB)
[ 2.012393] sd 4:0:0:0: [sdb] Write Protect is off
[ 2.012397] sd 4:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 2.012423] sd 4:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 2.012589] sd 4:0:0:0: Attached scsi generic sg3 type 0
[ 2.043908] sdb: sdb1 sdb2 sdb3
[ 2.044245] sd 4:0:0:0: [sdb] Attached SCSI disk
[ 2.380301] EXT4-fs (sdb1): mounted filesystem with ordered data mode. Opts: (null)
[ 2.480037] ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2.488202] ata6.00: ATA-7: MAXTOR STM3250310AS, 3.AAA, max UDMA/133
[ 2.488205] ata6.00: 488397168 sectors, multi 1: LBA48 NCQ (depth 0/32)
[ 2.504196] ata6.00: configured for UDMA/133
[ 2.504338] scsi 5:0:0:0: Direct-Access ATA MAXTOR STM325031 3.AA PQ: 0 ANSI: 5
[ 2.504520] sd 5:0:0:0: [sdc] 488397168 512-byte logical blocks: (250 GB/232 GiB)
[ 2.504580] sd 5:0:0:0: [sdc] Write Protect is off
[ 2.504583] sd 5:0:0:0: [sdc] Mode Sense: 00 3a 00 00
[ 2.504609] sd 5:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 2.504785] sd 5:0:0:0: Attached scsi generic sg4 type 0
[ 2.513491] sdc: sdc1 sdc2 sdc3
[ 2.513751] sd 5:0:0:0: [sdc] Attached SCSI disk
(...)
[ 66.346911] init: cups main process (916) killed by HUP signal
[ 66.346928] init: cups main process ended, respawning
[ 66.972610] systemd-logind[1036]: New seat seat0.
[ 66.986391] systemd-logind[1036]: Watching system buttons on /dev/input/event1 (Power Button)
[ 66.986472] systemd-logind[1036]: Watching system buttons on /dev/input/event0 (Power Button)
[ 69.717076] vboxdrv: module verification failed: signature and/or required key missing - tainting kernel
[ 69.725919] vboxdrv: Found 1 processor cores.
[ 69.728289] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[ 69.728292] vboxdrv: Successfully loaded version 4.3.20 (interface 0x001a0008).
[ 69.952279] vboxpci: IOMMU not found (not registered)
[ 71.338814] init: plymouth-upstart-bridge main process ended, respawning
[ 71.359739] init: plymouth-upstart-bridge main process ended, respawning
[ 71.740428] systemd-logind[1036]: Failed to start unit user@112.service: Unknown unit: user@112.service
[ 71.740438] systemd-logind[1036]: Failed to start user service: Unknown unit: user@112.service
[ 71.746117] systemd-logind[1036]: New session c1 of user lightdm.
[ 71.746149] systemd-logind[1036]: Linked /tmp/.X11-unix/X0 to /run/user/112/X11-display.
[ 84.490815] systemd-logind[1036]: Failed to start unit user@1001.service: Unknown unit: user@1001.service
[ 84.490826] systemd-logind[1036]: Failed to start user service: Unknown unit: user@1001.service
[ 84.497747] systemd-logind[1036]: New session c2 of user monmich.
[ 84.497779] systemd-logind[1036]: Linked /tmp/.X11-unix/X0 to /run/user/1001/X11-display.
[ 96.232890] audit_printk_skb: 30 callbacks suppressed
[ 96.232896] type=1400 audit(1423828274.147:25): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2307 comm="apparmor_parser"
[ 96.232905] type=1400 audit(1423828274.147:26): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2307 comm="apparmor_parser"
[ 96.232912] type=1400 audit(1423828274.147:27): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=2307 comm="apparmor_parser"

J'espère avoir donné assez d'infos pour y voir clair pour un pro de linux .
Apparemment ce serait un problème de connexion à la session ou de service ?
Faut-il ré-installer ?
Merci pour l'explication et si possible la solution,

Hello Mike33.

Apparemment ce serait un problème de connexion à la session ou de service ?

En effet, il semblerait que cela ralentisse au niveau de la mise en place du serveur d'affichage apparemment. C'est hélas lié aux risques des versions intermédiaires qui en somme ne sont que des betas (avec les bugs qui vont avec) en vue du peaufinage de la prochaine LTS. Je n'ai pas de solution si ce n'est d'attendre une mise à jour qui corrigera peut être le problème.
Un conseil, si vous aimez un système stables restez sur la dernière LTS et attendez la prochaine pour migrer.