[Bug 351119] New: i8042 sometimes fails after resume
https://bugzilla.novell.com/show_bug.cgi?id=351119 Summary: i8042 sometimes fails after resume Product: openSUSE 10.3 Version: Final Platform: x86-64 OS/Version: openSUSE 10.3 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: hschaa@novell.com QAContact: qa@suse.de CC: seife@novell.com Found By: --- Sometimes after a successful suspend-resume-cycle (approximately 1 out of 20) the keyboard and touchpad do not work anymore (HP 2510p). Using the workaround suggested at [1] everything is working fine again. Some details from dmesg in failure-case: i8042.c: Detected active multiplexing controller, rev 1.1. serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX0 port at 0x60,0x64 irq 12 serio: i8042 AUX1 port at 0x60,0x64 irq 12 serio: i8042 AUX2 port at 0x60,0x64 irq 12 serio: i8042 AUX3 port at 0x60,0x64 irq 12 i8042: Can't write CTR to resume atkbd serio0: PM: resume from 1, parent i8042 still 1 psmouse serio1: PM: resume from 1, parent i8042 still 1 serio serio2: PM: resume from 1, parent i8042 still 1 serio serio3: PM: resume from 1, parent i8042 still 1 psmouse serio4: PM: resume from 1, parent i8042 still 1 After using the workaround I get: i8042.c: Detected active multiplexing controller, rev 1.1. serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX0 port at 0x60,0x64 irq 12 serio: i8042 AUX1 port at 0x60,0x64 irq 12 serio: i8042 AUX2 port at 0x60,0x64 irq 12 serio: i8042 AUX3 port at 0x60,0x64 irq 12 [1] http://en.opensuse.org/Pm-utils#Restarting_the_mouse -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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Jeff Mahoney
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Pavel Machek
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--- Comment #2 from Helmut Schaa
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Pavel Machek
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User hschaa@novell.com added comment
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--- Comment #4 from Helmut Schaa
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--- Comment #5 from Pavel Machek
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--- Comment #6 from Jiri Kosina
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Jiri Kosina
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--- Comment #7 from Helmut Schaa
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Helmut Schaa
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Jiri Kosina
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Helmut Schaa
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Jiri Kosina
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Helmut Schaa
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Helmut Schaa
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--- Comment #14 from Stefan Seyfried
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--- Comment #15 from Jiri Kosina
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Helmut Schaa
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Jiri Kosina
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--- Comment #17 from Stefan Seyfried
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Stefan Seyfried
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Willem Meens
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--- Comment #19 from Stefan Seyfried
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--- Comment #20 from Willem Meens
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--- Comment #21 from Helmut Schaa
Helmut, IIRC you already did write some debug code and investigate about retrying the i8042 reinitialization if it failed. Did you ever find out more about this issue? Maybe your preliminary debug patch can help the i8042 experts to cook up something helpful for this issue.
Not yet as I cannot reproduce this issue reliable it's really hard to get a clue. But my assumption is that i8042_command writing the CRT times out and therefore fails to restore the device correctly. As s2ram works now I'm trying to do some more tests. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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--- Comment #22 from Stefan Seyfried
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--- Comment #23 from Willem Meens
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Jiri Kosina
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--- Comment #25 from Stefan Seyfried
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--- Comment #26 from Helmut Schaa
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--- Comment #27 from Helmut Schaa
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Stefan Seyfried
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--- Comment #29 from Stefan Seyfried
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--- Comment #30 from Jiri Kosina
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--- Comment #31 from Stefan Seyfried
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--- Comment #32 from Jiri Kosina
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Jiri Kosina
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--- Comment #33 from Stefan Seyfried
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Helmut Schaa
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Jiri Kosina
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--- Comment #36 from Marcus Meissner
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