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[Bug 567967] Re: Mounting a system from LG's HL-DT-ST DVD-ROM GDR-H30N makes Xorg to freeze

 

Lucid installer also freeses at detecting partitions on 43% (if I
remember well).

Disabling the DMA for the drive (by passing "libata.dma=1" to kernel at
boot time) solves the problem.

Then dmesg says:
[code][    0.924308] ata1.01: ATAPI: HL-DT-ST DVD-ROM GDR-H30N, 1.00, max UDMA/33
[    0.940444] ata1.01: configured for PIO4
[    0.941474] scsi 0:0:1:0: CD-ROM            HL-DT-ST DVD-ROM GDR-H30N 1.00 PQ: 0 ANSI: 5
[    0.945381] sr0: scsi3-mmc drive: 4x/52x cd/rw xa/form2 cdda tray
[    0.945387] Uniform CD-ROM driver Revision: 3.20
[    0.945555] sr 0:0:1:0: Attached scsi CD-ROM sr0
[    0.945637] sr 0:0:1:0: Attached scsi generic sg0 type 5[/code]

and everything just works.

-- 
Mounting a system from LG's HL-DT-ST DVD-ROM GDR-H30N makes Xorg to freeze
https://bugs.launchpad.net/bugs/567967
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