Bug 44804
Summary: | parport broken | ||
---|---|---|---|
Product: | [Retired] Red Hat Linux | Reporter: | Gerald Teschl <gt> |
Component: | kernel | Assignee: | Arjan van de Ven <arjanv> |
Status: | CLOSED RAWHIDE | QA Contact: | Brock Organ <borgan> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 7.1 | CC: | jcastro, twaugh |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i386 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2001-07-03 18:05:28 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Gerald Teschl
2001-06-17 08:40:47 UTC
Please try this: Load the parport_pc module (modprobe parport_pc) Load the lp module (modprobe lp) Power the printer off. Unplug it from the port. Re-insert it, and power it on. See if you can print. Thanks. Already tried this, but it won't work. - Does the port do ECP in hardware (i.e. is 'ECP' an option in the BIOS)? If so, did you try recompiling the kernel with parallel port FIFO support (CONFIG_PARPORT_PC_FIFO)? - Also, could you see if disabling CONFIG_PARPORT_SUPERIO has any effect? - When you say that /dev/lp0 acts like /dev/null, do you mean that the printer doesn't even act like it's being spoken to? No lights flashing? - /dev/lp0 _is_ a char special file..? ;-) Yes, I do have ECP as an option. I changed the mode to ECP but it still doesn't work (had no time to recompile the kernel yet). By "/dev/null" I mean "no flashing lights" on the printer. I changed the BIOS setting to ECP and recompiled the kernel with CONFIG_PARPORT_PC_FIFO but it makes no difference. Still broken in current erata kernel-2.4.3-12. If you boot a 2.2.x kernel (say, the latest 7.0 errata kernel), can _that_ print to this printer, keeping everything else the same? Yes, with a 2.2.x kernel printing works just fine. > I changed the BIOS setting to ECP and recompiled the kernel with
> CONFIG_PARPORT_PC_FIFO
> but it makes no difference.
Could you show me the dmesg output from this? Thanks.
I can confirm this problem, and in quite different hardware at that: desktop K6-2/500 (PC-Chips PC100 mainboard), and a Canon BJC-1000. Haven't done the tests suggested yet, but will do tonight. In the meantime, could I suggest you try the absolute latest Alan Cox kernel (2.4.5-ac23)? Problem resolved in kernel-2.4.6-2 from rawhide. |