CDs and DVDs not using DMA by default
Bug #2863 reported by
nachokb
This bug report is a duplicate of:
Bug #36185: Automatically enable DMA on CD-ROMs where it is known to work.
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| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| hdparm (Ubuntu) |
Invalid
|
Medium
|
Unassigned | ||
Bug Description
It's impossible to watch videos (or DVDs) because it would constantly jitter, eating CPU like chocolate. Turned out DMA transfer was disabled. Enabled it, played one. A few days later, everything screwed again. Must have been some update I think.
| Changed in hdparm: | |
| status: | New → Rejected |
Revision history for this message
| Emanuel Valente (emanuelvalente) wrote | #1 |
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I put the "hdparm parameters" at /etc/rc.d/rc.local. These parameters turn on dma. ex: hdparm -d1 /dev/hdc
once hdc is a dvd driver.