Puppy Linux Discussion Forum

BarryK · Posted: Mon 09 Jul 2012, 20:41 Post_subject:

There is a bug with using a usb wireless broadband mobile thingy.

My Optus modem, when I plug it in, is supposed to cause 'usbserial' kernel module to load, and then /dev/ttyUSB0 (etc) get created, but none of that is happening.

I found that manually running

# modrobe usbserial product=0x12d1 vendor=0x140c

then it does work.

My modem is one that does not require a usb-modeswitch, it is simultaneously in storage and modem modes.

So, I am trying to figure this one out.

Lobster · Posted: Tue 10 Jul 2012, 03:01 Post_subject:

I can now use keyboard keys like delete and arrows.
However typing can involve considerable and disconcerting screen lag. I notice this particularly in Chromium where I am now.

Tried to find settings in HDMI TV to enable sound. No luck there.

rhadon · Joined: 27 Mar 2008 Posts: 1228 Location: Germany

Hi Berry,

good explanation at your blog about hardware setup and excellent link about polyfuses. Although it's not my experience.

Since one or two days after I got my Pi, I use a seperate PS for the board and an active hub (4x 500mA, switchable, cheap one, ~13€) which I allways connected first, before I swich on the board. Since about one week I use partitions of my connected usb hd for sap6, instead of the 2nd partition and swap of the sd card. Works flawlessly.

After your post, I did some measurements.

If board has no power , but connected usb hub has power, I have no voltage on the board, not before and not behind the polyfuses. OK, there could be a peak (which I can't measure) when I swich on the power of the hub, but I tested whith my keyboard dongle instead of the hub and at both polyfuses I have nearly the same voltage drop if the dongle is connected (~109mV and ~115mV). I think that a difference of 0.006V is tolerance. So I guess, that it's save for me, but I'll measure from time to time to be sure.

Maybe of interest, the board is feeded with ~0.5V by a connected HDMI cable.

Thanks for the explanation and the link,

Rolf

Lobster · Posted: Tue 10 Jul 2012, 03:59 Post_subject:

OK changed config.txt
and modprobed
also set hdmi from suggestions previously posted

Lobster · Posted: Tue 10 Jul 2012, 05:00 Post_subject:

Barry you can put

Lobster · Posted: Tue 10 Jul 2012, 05:30 Post_subject:

in
/root/Startup

I put the following sound.sh

rhadon · Joined: 27 Mar 2008 Posts: 1228 Location: Germany

Hi Lobster,

one of the first things I did, was selecting snd_bcm2835 in menu->System->Puppy boot configuration(maybe in other words)->Click here to add another module and move snd_bcm2835 from the left to the right side. Now it's loaded at every boot Wink

.

To change from analog to HDMI or vice versa, I've build two scripts, one with amixer cset numid=3 1 and one with amixer cset numid=3 2. Both I placed on the desktop. Now I can change sound by just one click. It works.

With analog, sometimes i can hear some scratches, maybe 1 per min., more or less. With all players I've tested. Gxine, gnome mplayer and Mick's playmusic. Maybe other running processes are disturbing? Just a feeling because I get a lot of more "scratches" when I select e.g. another window with the cursor.

Sound via HDMI seems to be more stable to me, although it doesn't sound so good (TV speaker vs. hifi Rolling Eyes

).

About speaker tray icon: for me it's allways muted, no matter what I select.

Btw., similar to the network icon, which shows allways active.

~Rolf

Edit: you should take a bigger file for testing Wink

. Using aplay with 2barks.wav, I can't decide is it 1bark or a big "scratch" Embarassed

.

Lobster · Posted: Tue 10 Jul 2012, 06:55 Post_subject:

Thanks rolf,

I was finding that using a USB hub (unpowered) but with just the keyboard connected was giving me auto repeat again.
I am not going to get a powered hub unless essential.

I am not very keen on using the headphone socket . . . but may try that.

It seems to me extraordinary that with the same motherboard but different peripherals we are still having hardware problems.

Anyway back in x86-Slacko-Puppy for now. Cool

Puppy
Penguin Power

antiloquax · Joined: 27 Jan 2012 Posts: 405

Hi,
I am trying to update the package database in PPM. It's giving a lot of syntax errors: "Unexpected '(' in ..."
Am I doing something wrong?
mark

rhadon · Joined: 27 Mar 2008 Posts: 1228 Location: Germany

rhadon · Joined: 27 Mar 2008 Posts: 1228 Location: Germany

eowens2 · Joined: 27 Aug 2008 Posts: 55

In updating the package database in PPM, I have also been getting the "syntax errors: 'Unexpected "("" reported by antiloquax and rhadon.