From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: To: bluez-users@lists.sourceforge.net Subject: Re: [Bluez-users] Zoom 4312 PCMCIA Bluetooth freezes laptop References: From: "David Favro" Content-Type: text/plain; format=flowed; delsp=yes; charset=utf-8 MIME-Version: 1.0 Message-ID: In-Reply-To: Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net Reply-To: bluez-users@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ users List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 05 Jan 2005 21:04:12 -0500 On Wed, 05 Jan 2005 14:45:21 -0500, David Favro wrote: > Hello -- > > I recently acquired the Zoom model 4312 bluetooth PCMCIA adapter for my > eMachines M5312 laptop running Fedora Core 2 (I want to use it for my > bluetooth mouse). The whole set-up works fine under Windows-XP, so > apparently there is no hardware incompatibility, but it hangs the > machine under Linux. > > Prior to the malfunction, everything seems to be OK with the exception > of an error message when the PCMCIA card is initialized: "cs: warning: > no high memory space available!" and "cs: unable to map card memory!" > (full dmesg trace and much other system info included as an > attachment). The card seems to initialize and flashes its L.E.D. I > did no system configuration for the card beyond installing all of the > bluez packages from the FC2 repositories. I don't know how to resolve > the memory-map problem or if it is relevant. > > The problem is that when I do "hciattach ttyS16 bcsp" (per > http://sourceforge.net/mailarchive/message.php?msg_id=9958619), it > stays up long enough to display the next shell prompt, and then the > machine completely hangs. The caps-lock L.E.D. starts _flashing_ (and > continues to do so indefinitely -- strange, I don't know what that > means) and the video display remains unchanged, but the machine is > completely unresponsive to all input: the keyboard, the touch-pad and > mouse-buttons, the connected ethernet interface... completely hung. > Network-connected ssh's go dead, the machine will give no visible > response to any keystrokes at all, the mouse-pointer will not move, > etc. The only way to get it restarted is to hold down the power button > long enough that it turns off uncleanly. > > I'm no expert on PCMCIA nor Bluetooth, so I am clueless as to how to > address this. I don't know if this is the BT protocol driver or the > PCMCIA config that is causing the problem, but it is hard to deal with > due to the machine being so totally disabled. I've retried many times > and it is repeatable very consistently. Should I try a PCMCIA mailing > list? Am I correct to do the hciattach command? If I don't, the card > seems not to be noticed by hciconfig (see attached logs). [attachment stripped] After about 30 trial-and-error power-off cycles, I found some patterns: + The memory-map error messages only occur when the reboot happens after the freeze + hard-power-off. If the machine is then soft-power-cycled without attempting to hciattach, they do not occur on the next boot-up. + The freeze occurs when hciattach is attempted, whether or not the memory-map error messages occurred during boot-up. + When I tried booting an older FC2 kernel (2.6.8-1.521 rather than 2.6.9-1.11_FC2), the card becomes ttyS5 rather than ttyS16, the freeze does not occur, and I am able to successfully run "hciattach ttyS5 bcsp". I still hope to find a fix for the newer kernel, but at least I have a way to start experimenting with my new card. Thanks to anyone who can help me to understand what is happening. David Favro Meta-Dynamic Solutions, LLC dfavro@users.sourceforge.net ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users