linux-kernel - various laptop nagles - any suggestions? (note: 2.6.19-rc2-mm1 but applies to multiple kernels)

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Message-ID: <4537A25D.6070205@wintersgift.com>
Date:	Thu, 19 Oct 2006 09:05:49 -0700
From:	teunis <teunis@...tersgift.com>
To:	linux-kernel@...r.kernel.org
Subject: various laptop nagles - any suggestions?   (note: 2.6.19-rc2-mm1
 but applies to multiple kernels)

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Setting the internal clock to 100 Hz stablizes the laptop - and the
synaptics touchpad stops "crashing"  (when "crashed" the pad reads out
all kinds of seemingly random values).   I would suspect the driver
needs adjusting for the variable clock.   Also - it's definitely nicer
on the laptop power use as far as I can tell - should this be in the
documentation?

I'm very grateful that compact flash-based booting on a SATA system
works well.   It hasn't been so reliable in 2.6.19-rc2-mm1 for IDE/CF
adaptors but I haven't yet solved why.   (tested with various laptops)

resume from "suspend to ram" (ACPI S3 mode) - the keyboard and mouse do
not recover on 945G chipset.   Note that otherwise the chipset works
well in 2.6.19-rc2-mm1 - and this is the first kernel that does work well).

LVM2 - when adding and removing physical volumes (again, on Compact
Flash cards via USB and Firewire adaptors) - it doesn't always remove
the volume properly (pvremove /dev/sda or equiv) from the device-mapper.
 This leaves me unable to plug in another.   I suspect this to be an
LVM2 problem (no hotplug?) rather than a compact flash or SCSI problem.

I would debug - but I'm not yet sure where to begin.   Feel free to
offer suggestions (to my mailbox directly - I've waited for two weeks to
post as I don't want to add noise to the kernel list)

oh - my job involves working with these systems
Thank you for everything!
	- Teunis Peters
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