Bonjour 
Pour faire simple, X ne veux pas rebooter ^^ CTRL+ALT+Backspace donne un écran noir et quelque minute après mes écrans s’éteignent tout simplement.
Pour avoir le TTY au démarrage, idem, alors que le shutdown, reboot et halt en single user marche parfaitement bien.
Je pense que cela viens des drivers ATI, j’ai cherché à utiliser autre chose, mais pour le dual screen avec xinerama, seuls ceux ci fonctionnent correctement.
Donc grosso modo je me farci des hard reboot …
Info sur ma config :
Debian Lenny avec uniquement KDE
[quote]$ uname -a
Linux lud-deb 2.6.22-3-686 #1 SMP Mon Nov 12 08:32:57 UTC 2007 i686 GNU/Linux[/quote]
[quote]$ lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC’97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc R420 JJ [Radeon X800SE]
01:00.1 Display controller: ATI Technologies Inc R420 [Radeon X800] (Secondary)
05:02.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5782 Gigabit Ethernet (rev 03)
05:09.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 11)
05:09.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 11)[/quote]
[quote]$ lsusb
Bus 004 Device 002: ID 058f:6362 Alcor Micro Corp. Hi-Speed 21-in-1 Flash Card Reader/Writer (Internal/External)
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 003: ID 046d:c51a Logitech, Inc.
Bus 001 Device 001: ID 0000:0000[/quote]
[quote]# dmidecode 2.9
SMBIOS 2.3 present.
59 structures occupying 1818 bytes.
Table at 0x000F8DD4.
Handle 0x0001, DMI type 0, 20 bytes
BIOS Information
Vendor: Hewlett-Packard
Version: 786B2 v1.11
Release Date: 07/10/2003
Address: 0xE0000
Runtime Size: 128 kB
ROM Size: 512 kB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
5.25"/360 KB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 KB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
ACPI is supported
USB legacy is supported
AGP is supported
LS-120 boot is supported
ATAPI Zip drive boot is supported
BIOS boot specification is supported
Function key-initiated network boot is supported[/quote]
Pour Dmesg, il n’y a pas de date, c’est pas vraiment facile de faire le tri 
