CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through parallel port
Bug #339752 reported by
wczimmerman
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
High
|
Leann Ogasawara | ||
Precise |
Won't Fix
|
High
|
Unassigned | ||
Quantal |
Won't Fix
|
High
|
Unassigned | ||
Raring |
Fix Released
|
High
|
Leann Ogasawara |
Bug Description
Running current patch level 8.10. Printer is a HP 540 on the parallel port. In CUPS, when selecting the auto detected printer I only have the LPT printer available. Printing to this device using any PPD (HPIJS, PL3, etc) results in slow printing output or, sometimes, even a complete error state on the printer. Booting the same machine up on a LiveCD of Jaunty (Alpha 4) CUPS shows 2 available printers: the first on the LPT port, the second on parport0. Selecting the parport printer (using the hp URI in CUPS) while in the LiveCD allows all printing to function normally. I have verified that all the parport, lp, and ppdev modules are installed.
Related branches
summary: |
- (Intrepid) Missing parport printer in CUPS + Slow/stuttering printing through parallel port |
summary: |
- Slow/stuttering printing through parallel port + CONFIG_PARPORT_PC_FIFO=y causes slow/stuttering printing through + parallel port |
tags: | added: patch |
Changed in linux (Ubuntu Precise): | |
status: | New → Triaged |
Changed in linux (Ubuntu Quantal): | |
status: | New → Triaged |
Changed in linux (Ubuntu Precise): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Quantal): | |
importance: | Undecided → High |
Changed in linux (Ubuntu Quantal): | |
milestone: | none → quantal-updates |
Changed in linux (Ubuntu Precise): | |
milestone: | none → precise-updates |
Changed in linux (Ubuntu Raring): | |
milestone: | quantal-updates → none |
tags: | added: raring |
tags: | added: precise quantal |
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I am experiencing the same behaviour as wczimmerman described under Ubuntu 12.04. My printer is dot matrix printer (POS printer) Star SP742. If I am trying to print through /dev/parport0 printer is fast and works without any hassles. Otherwise through /dev/lp0 it's very slow and not smooth.
Tested also under openSUSE 12.2 (kernel 3.4.6; doesn't work too) and CentOS 6.3 (kernel 2.6.32 -