bonsoir,
Voila un petit soucis qui me met en rogne. Je n arrive pas a lire de CD audio sous gnome avec les logiciels suivants:
J ai vraiment essaye de fouiner par tout (cdparanoia, reinstallation, et autre…)
La seule methode qui marche : inserer un DVD (en l occurnence la guerre des boutons 
) l’ejecter et ensuite y mettre mon cd audio, et la Ho miracle cela se mets en route…
une explication???
Merci d avance
AH
un petit truc:
voila mon dmesg est ce qu le DMA y est pour qq chose?
[code][ 1185.828871] hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
[ 1185.828878] hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
[ 1185.828881] ide: failed opcode was: unknown
[ 1185.883143] hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
[ 1185.883150] hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
[ 1185.883153] ide: failed opcode was: unknown
[ 1185.937411] hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
[ 1185.937417] hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
[ 1185.937420] ide: failed opcode was: unknown
[ 1185.991720] hdc: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
[ 1185.991726] hdc: cdrom_decode_status: error=0x40 { LastFailedSense=0x04 }
[ 1185.991729] ide: failed opcode was: unknown
[ 1185.991732] hdc: DMA disabled
[ 1185.991757] hdc: ide_intr: huh? expected NULL handler on exit
[ 1186.036025] hdc: ATAPI reset complete
[ 1186.607809] hdc: command error: status=0x51 { DriveReady SeekComplete Error }
[ 1186.607809] hdc: command error: error=0x50 { LastFailedSense=0x05 }
[ 1186.607809] ide: failed opcode was: unknown
[ 1186.608253] ATAPI device hdc:
[ 1186.608255] Error: Illegal request – (Sense key=0x05)
[ 1186.608258] Read of scrambled sector without authentication – (asc=0x6f, ascq=0x03)
[ 1186.608261] The failed “Read 10” packet command was:
[ 1186.608262] "28 00 00 2f f1 de 00 00 01 00 00 00 00 00 00 00 "
[ 1186.608269] end_request: I/O error, dev hdc, sector 12568440
[ 1186.680326] hdc: command error: status=0x51 { DriveReady SeekComplete Error }
[ 1186.680326] hdc: command error: error=0x50 { LastFailedSense=0x05 }
[ 1186.680326] ide: failed opcode was: unknown
[ 1186.680326] ATAPI device hdc:
[ 1186.680326] Error: Illegal request – (Sense key=0x05)
[ 1186.680326] Read of scrambled sector without authentication – (asc=0x6f, ascq=0x03)
[ 1186.680326] The failed “Read 10” packet command was:
[ 1186.680326] "28 00 00 2f f1 dd 00 00 01 00 00 00 00 00 00 00 "
[ 1186.680326] end_request: I/O error, dev hdc, sector 12568436
[ 1186.752645] hdc: command error: status=0x51 { DriveReady SeekComplete Error }
[ 1186.752651] hdc: command error: error=0x50 { LastFailedSense=0x05 }
[ 1186.752654] ide: failed opcode was: unknown
[ 1186.753045] ATAPI device hdc:
[ 1186.753048] Error: Illegal request – (Sense key=0x05)
[ 1186.753051] Read of scrambled sector without authentication – (asc=0x6f, ascq=0x03)
[ 1186.753053] The failed “Read 10” packet command was:
[ 1186.753054] "28 00 00 2f f1 df 00 00 01 00 00 00 00 00 00 00 "
[ 1186.753060] end_request: I/O error, dev hdc, sector 12568444
[ 1186.898988] UDF-fs: Partition marked readonly; forcing readonly mount
[ 1186.938542] UDF-fs INFO UDF: Mounting volume [size=150]LA GUERRE DES BOUTONS[/size] , timestamp 2036/02/07 02:58 (103c)
[/code]
Un petit up 
Souci resolu
cela venait de mon lecteur de CDROM qui supportait mal l UDMA
j ai edite le fichier /etc/hdparm.conf
et ajoute:
command_line {
hdparm -d0 /dev/hdc
}voila tout roule