YUP wrote: > Hello, > > I have the folowing problem. I'm running kubuntu box with > 2.6.20-10 kernel with ubuntu patches and my cdrom as well as dvd drive > doesn't recognized at all. I've already reported this on kubuntu forum, > but nobody can answer me. The link is here: > http://kubuntuforums.net/forums/index.php?topic=3080227.0 > I also tried to compile generic kernels from kernel.org with the same > result. Can anybody say what is going on with my hardware or kernel? > Before 2.6.20 everything ran smoothly. > > > My latest dmesg output: > <snip> > [ 33.707293] SCSI subsystem initialized > [ 33.715511] libata version 2.00 loaded. ... > [ 33.926133] ata_piix 0000:00:1f.1: version 2.00ac7 > [ 33.926178] PCI: Setting latency timer of device 0000:00:1f.1 to 64 > [ 33.926324] ata1: PATA max UDMA/100 cmd 0x1F0 ctl 0x3F6 bmdma 0xF000 > irq 14 > [ 33.926388] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xF008 > irq 15 > [ 33.926412] scsi0 : ata_piix > [ 33.993985] FDC 0 is a post-1991 82077 > [ 34.245729] ata1.00: ATAPI, max UDMA/33 > [ 34.409478] ata1.01: ATAPI, max MWDMA2 > [ 34.573238] ata1.00: configured for UDMA/33 > [ 34.736993] ata1.01: configured for MWDMA2 > [ 34.737023] scsi1 : ata_piix > [ 34.894993] scsi 0:0:0:0: CD-ROM HP DVD Writer 200j > 1.36 PQ: 0 ANSI: 5 > [ 34.896276] scsi 0:0:1:0: CD-ROM E-IDE CD-ROM 56X/AKH > A80 PQ: 0 ANSI: 5 > [ 34.909780] tulip0: MII transceiver #1 config 1000 status 786d > advertising 05e1. > [ 34.917561] eth0: ADMtek Comet rev 17 at Port 0xb400, > 00:04:5A:8A:55:7B, IRQ 21. > [ 34.917761] pata_pdc2027x 0000:02:01.0: version 0.74-ac5 > [ 35.016968] pata_pdc2027x 0000:02:01.0: PLL input clock 16550 kHz > [ 35.051596] ata3: PATA max UDMA/133 cmd 0xE08297C0 ctl 0xE0829FDA > bmdma 0xE0829000 irq 21 > [ 35.051661] ata4: PATA max UDMA/133 cmd 0xE08295C0 ctl 0xE0829DDA > bmdma 0xE0829008 irq 21 > [ 35.051681] scsi2 : pata_pdc2027x > [ 35.082740] sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda > tray > [ 35.082749] Uniform CD-ROM driver Revision: 3.20 > [ 35.083141] sr 0:0:0:0: Attached scsi CD-ROM sr0 > [ 35.092019] sr1: scsi3-mmc drive: 231x/52x cd/rw xa/form2 cdda tray > [ 35.092385] sr 0:0:1:0: Attached scsi CD-ROM sr1 > [ 35.099265] sr 0:0:0:0: Attached scsi generic sg0 type 5 > [ 35.099296] sr 0:0:1:0: Attached scsi generic sg1 type 5 Both your HP DVD Writer 200j and AOpen 56X/AKH are detected correctly as sr0 and sr1. (It might be /dev/scd0 and /dev/scd1 on your distro.) However, there are problems with the AOpen "E-IDE CD-ROM 56X/AKH" drive. It reports the strange "231x" speed and later timeout on INQUIRY. <snip> > [ 65.095382] ata1.01: qc timeout (cmd 0xa0) > [ 65.095404] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 > frozen > [ 65.095409] ata1.01: (BMDMA stat 0x65) > [ 65.095417] ata1.01: cmd a0/01:00:00:00:00/00:00:00:00:00/b0 tag 0 > cdb 0x12 data 254 in > [ 65.095419] res 51/51:03:00:12:00/00:00:00:00:00/b0 Emask > 0x5 (timeout) > [ 72.084934] ata1: port is slow to respond, please be patient (Status > 0xd8) > [ 95.066527] ata1: port failed to respond (30 secs, Status 0xd8) > [ 95.066538] ata1: soft resetting port > [ 95.549849] ata1.01: failed to IDENTIFY (I/O error, err_mask=0x1) > [ 95.549856] ata1.01: revalidation failed (errno=-5) > [ 95.549865] ata1: failed to recover some devices, retrying in 5 secs > [ 100.546369] ata1: soft resetting port > [ 101.193580] ata1.00: configured for UDMA/33 > [ 101.357350] ata1.01: configured for MWDMA2 > [ 101.357399] ata1: EH complete > [ 131.348286] ata1.01: qc timeout (cmd 0xa0) > [ 131.348308] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 Could you please replace the cable and/or connect the AOpen drive to another PATA port and see if it makes the "qc timeout" go away, thanks. -- Albert - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html