== Devices == * Controller: Intel ICH6 SATA controller, PCI ID 8086:2653 * Driver: ata_piix (SATA mode), ide_generic/piix (IDE mode) * HD: Fujitsu MHT2080B, 77.7G * CD/DVD writer: Matshita UJ-822s == hard disk controller and drive == * '''Etch:''' * The '''ICH6 controller''' is causing trouble. The HD performance is good (34MB/s from hdparm), but: To make the DVD-ROM drive work, the "piix" and "ide_generic" drivers are required. But Debian loads the SATA driver "ata_piix" first, which blocks the IO ports at 0170-0177, so that "piix" won't load. The standard debian kernel's libata implementation has no ATAPI support in libata, so that the CD-ROM isn't detected (I consider this a libata/ata_piix bug: if the CD drive can't be handled, the IO ports of that controller should be freed). Workaround: * Use "expert" mode and load "piix" and "ide-generic" in the media detection stage. Load "ata_piix" later. * Before rebooting, enter the following lines in {{{/etc/mkinitrd/modules}}} and rerun mkinitrd: {{{ piix ide-generic }}} If the modules are loaded in this order, they share the resources nicely. * Unfortunately, the {{{ata_piix}}} driver currently supports neither SMART command to monitor driver health nor Suspend/resume commands for saving disk power. The {{{laptop-mode-tools}}} package will be useless with this laptop until a replacement for {{{hdparm}}} for SATA drives is available (there is {{{sdparm}}} but it can't put disks in standby mode). Both SMART aund Suspend/Resume will be available soon, as announced on the [[http://linux.yyz.us/sata/software-status.html|the SATA software status page]]. * '''Sarge:''' * The SATA hard disk ('''Intel ICH6''') was detected, but it was running in PIO mode with the generic IDE driver and was dead slow (measured 2.5MB/s) with the 2.4.27-2 kernel. The {{{ata_piix}}} driver of Sarge's 2.6.8-2 kernel failed to detect the ICH6 chipset. The X50's HDD can currently not be driven appropriately with the kernels available natively for Sarge. == CD-ROM drive/DVD burning == The {{{ide_generic}}} driver is used to access rhe CD/DVD under Debian (2.6.12). Therefore DMA is disabled, and the CD/DVD drive is extremely slow. This effectively makes watching DVDs or burning CDs impossible. ~-(people have [[http://marc.theaimsgroup.com/?t=112030175300001&r=1&w=2|suggested]] adding the ICH6 in "extended mode" to the list of devices supported by the {{{piix}}} IDE driver. '''This does not work on the X50''', because the {{{piix}}} driver will now grab all interfaces and the HD won't be detected)-~ Workaround for '''kernels <2.6.14''': Enable ATAPI support in libata by setting {{{#define ATA_ENABLE_ATAPI}}} in {{{include/linux/libata.h}}} and recompile your kernel. This works fine for me. The CD drive will now show up as SCSI device {{{/dev/scd0}}}. I get ~15x CD-writing speed with this setup. '''Update: 2.6.14''' has ATAPI support in libata enabled by default, no recompilation necessary. But ATAPI support now needs to be enabled by creating a file {{{libata.conf}}} in {{{/etc/modprobe.d}}} containing the line {{{ options libata atapi_enabled=1 }}} /!\ CD writing with {{{cdrecord}}} doesn't work with 2.6.14. Haven't yet figured out why. [[http://linux.spiney.org/debian_gnu_linux_on_an_ibm_thinkpad_t43p_cdrw_dvdrw_multi_burner|Other people]] have reported similar problems. '''2.6.15-1 fixes this problem for me'''. '''DVD playback''': Strangely, playback of encrypted DVDs using {{{libdvdcss2}}} did not work (read errors during playback) until I installed the DVD playback software bundled with the Laptop ''under Windows''. After the Windows software had been installed, Linux DVD playback worked just fine. ''Update <>:'' I have been told this is due to the DVD region code being unset when the laptop is delivered. So I could have made the DVD playback work with the {{{regionset}}} tool. Unfortunately, it's now too late to test that. === cdrecord reported CD/DVD-Drive capabilities === {{{ # cdrecord -scanbus dev=ATAPI: Cdrecord-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Joerg Schilling [...] scsibus1: 1,0,0 100) 'MATSHITA' 'DVD-RAM UJ-822S ' '1.00' Removable CD-ROM # cdrecord -prcap dev=ATA:1,0,0 Cdrecord-Clone 2.01.01a01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Joerg Schilling scsidev: 'ATA:1,0,0' devname: 'ATA' scsibus: 1 target: 0 lun: 0 Warning: Using badly designed ATAPI via /dev/hd* interface. Linux sg driver version: 3.5.27 Using libscg version 'ubuntu-0.8ubuntu1'. cdrecord: Warning: using inofficial version of libscg (ubuntu-0.8ubuntu1 '@(#)scsitransp.c 1.91 04/06/17 Copyright 1988,1995,2000-2004 J. Schilling'). Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'MATSHITA' Identifikation : 'DVD-RAM UJ-822S ' Revision : '1.00' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Drive capabilities, per MMC-3 page 2A: Does read CD-R media Does write CD-R media Does read CD-RW media Does write CD-RW media Does read DVD-ROM media Does read DVD-R media Does write DVD-R media Does read DVD-RAM media Does write DVD-RAM media Does support test writing Does read Mode 2 Form 1 blocks Does read Mode 2 Form 2 blocks Does read digital audio blocks Does restart non-streamed digital audio reads accurately Does support Buffer-Underrun-Free recording Does read multi-session CDs Does read fixed-packet CD media using Method 2 Does read CD bar code Does not read R-W subcode information Does read raw P-W subcode data from lead in Does return CD media catalog number Does return CD ISRC information Does support C2 error pointers Does deliver composite A/V data Does play audio CDs Number of volume control levels: 256 Does support individual volume control setting for each channel Does support independent mute setting for each channel Does not support digital output on port 1 Does not support digital output on port 2 Loading mechanism type: tray Does support ejection of CD via START/STOP command Does not lock media on power up via prevent jumper Does allow media to be locked in the drive via PREVENT/ALLOW command Is not currently in a media-locked state Does not support changing side of disk Does not have load-empty-slot-in-changer feature Does not support Individual Disk Present feature Maximum read speed: 5540 kB/s (CD 31x, DVD 4x) Current read speed: 5540 kB/s (CD 31x, DVD 4x) Maximum write speed: 3324 kB/s (CD 18x, DVD 2x) Current write speed: 3324 kB/s (CD 18x, DVD 2x) Rotational control selected: CLV/PCAV Buffer size in KB: 2048 Copy management revision supported: 1 Number of supported write speeds: 1 Write speed # 0: 3324 kB/s CLV/PCAV (CD 18x, DVD 2x) }}} ----