[maemo-users] new firmware fixes loss of sensitivity

From: Eero Tamminen eero.tamminen at nokia.com
Date: Thu Aug 2 12:48:14 EEST 2007

ext Andreas Poisel wrote:
> * Andreas Poisel <aplists at gmail.com> [070707 13:00]:
>> Interesting.  A friend of mine upgraded to 4.2007.26-8 yesterday and
>> he had to put it away for the night before the touch-screen was
>> usable.
> Our problem seems to be related to the Kingston 2 GB SD-cards we're
> both using.  The touch-screen failures vanished after removing the
> card.
> Maybe the changes regarding support for SDHC cards cause the troubles.

ext Andreas Poisel wrote:
> * Neil MacLeod <gmane at nmacleod.com> [070709 16:10]:
>> Personally I'd be a little cautious about using the new update with
>> any expensive SD/SDHC cards until Nokia comment against bug #1204[1]
>> or in the mailing list with further details explaining why the update
>> is killing cards and what can be done about it (and how to revive
>> "dead" cards).
> I didn't experience filesystem or hardware related issues with my
> SD-cards (opposed to MMC-cards, where the filesystem gets corrupted
> frequently on N770 and N800, any firmware version) using
> RX-34_2007SE_4.2007.26-8_PR_MR0.
> My problem is the metalayer-crawler eating up the CPU resources (as
> discussed here: https://bugs.maemo.org/show_bug.cgi?id=978).
> The metalayer-crawler process is running with a niceness of 19 and I
> applied a custom path.  This is the command line (as listed by htop):
> /usr/bin/metalayer-crawler -F -c /home/user/MyDocs/.video,/home/user/MyDocs/.sounds,/home/user/MyDocs/.images
> Nevertheless metalayer-crawler seems to block the touch-screen almost
> completely for about 10 minutes after system startup.

Niced metalayer crawler CPU usage shouldn't be able to affect this.
It causing something to happen on the kernel side (e.g. related
to MMC) could though.

> The filesystem on my card is OK, neither the high niceness nor the
> custom path applied to metalayer-crawler affects the touch-screen issue
> in a positive way.
> The only fix which works for me is to switch off metalayer-crawler
> completely (I don't care about the mediaplayer).

And then you don't have issues with touchscreen?
It's not necessary to remove the card, disabling crawler
(and its MMC accesses) is enough?

When the touchscreen gets unresponsive, if you use "dmesg"
(e.g. over ssh) to see kernel messages, does it show any
messages about the MMC?

	- Eero

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