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Hello! |
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I'm not able to activate dma mode for cdrom drive in my laptop. |
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# hdparm -d1 /dev/hdd |
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|
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/dev/hdd: |
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setting using_dma to 1 (on) |
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HDIO_SET_DMA failed: Operation not permitted |
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using_dma = 0 (off) |
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|
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I have the following hardvers: |
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# lspci |
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00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML Express |
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Processor to DRAM Controller (rev 04) |
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00:01.0 PCI bridge: Intel Corporation Mobile 915GM/PM Express PCI Express Root |
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Port (rev 04) |
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00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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High Definition Audio Controller (rev 04) |
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00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI |
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Express Port 1 (rev 04) |
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00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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USB UHCI #1 (rev 04) |
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00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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USB UHCI #2 (rev 04) |
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00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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USB UHCI #3 (rev 04) |
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00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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USB UHCI #4 (rev 04) |
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00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) |
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USB2 EHCI Controller (rev 04) |
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00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d4) |
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00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface Bridge |
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(rev 04) |
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00:1f.2 IDE interface: Intel Corporation 82801FBM (ICH6M) SATA Controller (rev |
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04) |
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00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus |
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Controller (rev 04) |
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01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility X700 |
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(PCIE) |
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06:03.0 Network controller: Intel Corporation PRO/Wireless 2200BG Network |
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Connection (rev 05) |
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06:04.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller |
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06:04.2 FireWire (IEEE 1394): Texas Instruments OHCI Compliant IEEE 1394 Host |
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Controller |
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06:04.3 Mass storage controller: Texas Instruments PCIxx21 Integrated |
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FlashMedia Controller |
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06:04.4 Class 0805: Texas Instruments PCI6411, PCI6421, PCI6611, PCI6621, |
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PCI7411, PCI7421, PCI7611, PCI7621 Secure Digital (SD) Controller |
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06:05.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit |
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Ethernet (rev 10) |
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|
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And dmesg: |
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Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 |
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ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx |
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ide0: I/O resource 0x1F0-0x1F7 not free. |
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ide0: ports already in use, skipping probe |
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Probing IDE interface ide1... |
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input: AT Translated Set 2 keyboard as /class/input/input0 |
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hdd: PHILIPS DVD+/-RW SDVD8441, ATAPI CD/DVD-ROM drive |
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input: ImPS/2 Logitech Wheel Mouse as /class/input/input1 |
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ide1 at 0x170-0x177,0x376 on irq 15 |
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hdd: ATAPI 24X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache |
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Uniform CD-ROM driver Revision: 3.20 |
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|
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I think the problem is that there is no driver for this chipset compiled into |
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the kernel. But I don't know which driver should be compiled into. I tried |
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Intel PIIXn but it didn't help. |
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|
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Thanks for the help in advance, |
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István |
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|
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-- |
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