Nobody6
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Re: CPC are here to answer questions :)

Mon Feb 04, 2013 3:40 pm

CPC.co.uk wrote:You may want to try using the HDMI_group = 1 (CEA) as this is prefered for analogue TV's as well as CRT monitors. By default if the particular resolution setting isn't supported it will revert to a default setting, most likely 640x480 in your case. Let us know how you get on
Thanks for your feedback.

I use my Raspberry almost exclusively as a Media Center running RaspBMC. And that's what I'm using for testing as well.

Now I don't believe that CEA is a solution for me, but lets see what happens:
  • setting it to HDMI_group = 1 only, and removing everything else - I get no picture at all
  • adding hdmi_mode=1 works, but it's 640x480 @ 60 Hz. It flickers and has lots of aliasing and Moiré patterns
  • hdmi_mode=4 works, but the picture is distorted, misplaced, flickers and has lots of aliasing and Moiré patterns. However it is reported as 1280x720p @60 Hz. Not usable though.
None of the other CEA resolution makes much sense to me. Like 50Hz and interleaving. My eyes already hurt when I think about it. And the CRT can't do 100 Hz or HD, that would be well above its specification.

What I need is a properly working and recognized resolution better than VGA with a 70, 72 or 75 Hz refresh rate which does not exceed 64 kHz line frequency.
That would be hdmi_group=2 (DMT) and hdmi_mode 5, 6, 10, 11, 17, 18 and 21. I also tried 36, but I'm not sure if my screen would survive that for a longer operating time. I've tested them and they all work, sort-of (meaning I get a picture). But they are not recognized by the GUI. Which reports them as 640x480@60Hz. Which is wrong, because in contrast to the 60 Hz modes the screen doesn't flicker.

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Re: CPC are here to answer questions :)

Mon Feb 04, 2013 4:41 pm

If you type the following commands in the command line when the Raspberry Pi has booted up it will tell you which modes are compatible with your monitor.
/opt/vc/bin/tvservice -m CEA
/opt/vc/bin/tvservice -m DMT

/opt/vc/bin/tvservice -s (Shows your current state)
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Nobody6
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Re: CPC are here to answer questions :)

Mon Feb 04, 2013 5:05 pm

CPC.co.uk wrote:If you type the following commands in the command line when the Raspberry Pi has booted up it will tell you which modes are compatible with your monitor.
/opt/vc/bin/tvservice -m CEA
/opt/vc/bin/tvservice -m DMT

/opt/vc/bin/tvservice -s (Shows your current state)
Well, here's the result:

Code: Select all

@raspbmc: /opt/vc/bin/tvservice -m CEA
tvservice-client: No supported modes returned for group CEA in [vc_tv_hdmi_get_supported_modes_new]
Group CEA has 0 modes:

@raspbmc: /opt/vc/bin/tvservice -m DMT
tvservice-client: No supported modes returned for group DMT in [vc_tv_hdmi_get_supported_modes_new]
Group DMT has 0 modes:

@raspbmc: /opt/vc/bin/tvservice -s
state 0x120016 [DVI  RGB full 4:3], 640x480 @ 60Hz, progressive
The first two are no surprise, when my CRT fell from the factory line PnP still meant "Plug and Pray" - although Windows recognizes it's a EIZO Flexscan.
The last once I don't believe. If it was 60 Hz it would flicker, which it definitely doesn't. The one currently selected in the config file is hdmi_mode=21 (1152x864 75Hz), which in contrast to other modes gives me a steady, centered picture that does not flicker with little Moiré patterns.

Something interesting I noticed: although I always seem to end up in VGA, the size and shape of the symbol displayed during boot-up changes depending on the resolution I'm trying to force.

Edit:
Just noticed, the font size changes as well! After pressing ctrl+alt+delete the font size gets smaller, so a lot more text (shutdown-messages) fits onto the screen before it reboots a few seconds later.

aboulafia
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Re: CPC are here to answer questions :)

Wed Feb 06, 2013 1:51 pm

Hello, I've got a similar problem - I'm using a flat display with a HDMI <-> DVI cable.

I 'm stuck to the default resolution. No matter the options in config.txt, the display is always the same : 640x480

With
hdmi_group=1
hdmi_mode=1

I got this

Code: Select all

pi@raspberrypi /boot $ /opt/vc/bin/tvservice -m CEA
Group CEA has 0 modes:
pi@raspberrypi /boot $ /opt/vc/bin/tvservice -m DMT
Group DMT has 0 modes:
pi@raspberrypi /boot $ /opt/vc/bin/tvservice -s
state: HPD high|DVI mode|HDCP off|composite off (0x120016), 640x480 @ 60Hz, progressive
I've tried several values but nothing changed.

I didn't used my Pi for few months, then yesterday I did a full update of the new kernel, apps and libraries. I'm quite sure that changing resolution did worked in the past with the same display.

Any idea ?

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Re: CPC are here to answer questions :)

Wed Feb 06, 2013 3:46 pm

Try adding

hdmi_drive=1 (Normal DVI mode No sound)

also hdmi_mode=1 is 640x480 standard VGA resolution

Hope this helps ;)
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Nobody6
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Re: CPC are here to answer questions :)

Wed Feb 06, 2013 4:40 pm

CPC.co.uk wrote:Try adding
hdmi_drive=1 (Normal DVI mode No sound)

Hope this helps ;)
It should help aboulafia, but not me unfortunately. Because I already have that. I also have hdmi_force_hotplug=1 without those two I probably wouldn't get a picture at all.

aboulafia
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Re: CPC are here to answer questions :)

Fri Feb 08, 2013 8:49 am

Thank you for you suggestion CPC, but unfortunately that didn't worked...

Finally I got it working with these settings, that I copy/pasted from the top of http://elinux.org/RPiconfig :

Code: Select all

# Set stdv mode to PAL (as used in Europe)
sdtv_mode=2
# Force the monitor to HDMI mode so that sound will be sent over HDMI cable
hdmi_drive=2
# Set monitor mode to DMT
hdmi_group=2
# Set monitor resolution to 1024x768 XGA 60Hz (HDMI_DMT_XGA_60)
hdmi_mode=16
# Make display smaller to stop text spilling off the screen
overscan_left=20
overscan_right=12
overscan_top=10
overscan_bottom=10

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Re: CPC are here to answer questions :)

Fri Feb 08, 2013 1:54 pm

Thanks for that info. I think it was just a matter of playing with the settings to find which one worked for you. Glad you got it sorted anyway :D
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plugwash
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Re: CPC are here to answer questions :)

Sun Mar 17, 2013 3:52 pm

I notice a new kit has appeared on your website but there are no details of what is in said kit.

http://cpc.farnell.com/raspberry-pi/rpi ... dp/SC12936

simplesi
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Re: CPC are here to answer questions :)

Sun Mar 17, 2013 4:55 pm

I'd be guessing that it'll be same as the exisiting kit but using a diff 4 port hub instead of the 7 port ones (which used to be a bit problematical in the past)

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plugwash
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Re: CPC are here to answer questions :)

Sun Mar 17, 2013 4:58 pm

I'd be guessing that too but I still think a website selling a kit should say what is in it rather than requiring visitors to guess.

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aTao
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Re: CPC are here to answer questions :)

Sun Mar 17, 2013 5:40 pm

Maybe its one of their "guess the contents to win one" giveaways.
Well, theres no harm in hoping.
>)))'><'(((<

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Re: CPC are here to answer questions :)

Mon Mar 18, 2013 8:22 am

plugwash wrote:I notice a new kit has appeared on your website but there are no details of what is in said kit.

http://cpc.farnell.com/raspberry-pi/rpi ... dp/SC12936
Yeaaaaaaaaaaaaaaaaah. Don't know what happened there, added the description now, should be on line sometime soon :)

If you can't wait that long then;

SC12936:
Raspberry Pi, Model B 512MB board (SC12590)
5V, 1A UK mains PSU with microUSB connector
4GB SD Card with preloaded Raspbian Wheezy OS
2m HDMI Lead
4-Port USB Hub
UK Layout Mini Keyboard (CS17229)
Optical Scroll Mouse
WiPi IEEE802.11n Wifi Dongle

As correctly guessed, it's a replacement for the 7 port version :)

No competition for guessing the contents we're afraid - BUT - There should be a competition of some interest popping up on our Facebook page (http://www.facebook.com/cpc.co.uk) in the very near future that the Raspberry Pi community will be interested in ;)
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sej7278
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Re: CPC are here to answer questions :)

Mon Mar 18, 2013 4:30 pm

why are cpc no longer selling the model-a on its own, i had one in my cart for about £18 and now its gone, there only seems to be a kit and a case which i don't want.

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Re: CPC are here to answer questions :)

Mon Mar 18, 2013 5:44 pm

http://cpc.farnell.com/raspberry-pi/ras ... 20Products
Is coming up for me - not tried sticking it a basket but it seems to be there :)

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sej7278
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Re: CPC are here to answer questions :)

Mon Mar 18, 2013 11:42 pm

simplesi wrote:http://cpc.farnell.com/raspberry-pi/ras ... 20Products
Is coming up for me - not tried sticking it a basket but it seems to be there :)
oh right thanks, that is odd! seems to have gone up a couple of quid though despite the exchange rate.

SiriusHardware
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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 12:18 am

Hello CPC: I have a query which might defeat even your Pi guru, although he/she has always done amazingly well in the past. Re: Your combined keyboard / touchpad:

CS20646

I asked about these a while ago and you stated (correctly) that they worked OK with the Pi so I bought one. Although it does work, the touchpad part of the unit is only recognised as a generic mouse by Raspbian on the Pi, so the system menus on the LXDE desktop do not offer any touchpad specific options, especially the one I really want, namely to turn off tap-to-click.

It appears that Raspbian does not recognise the pointing device as a synaptics compatible device, but it is identified as an 'Elan technology' device. Is there any trick that you are aware of that I can use to force Raspbian to see the touchpad as a touchpad, and not just as a mouse?

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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 8:30 am

sej7278 wrote:oh right thanks, that is odd! seems to have gone up a couple of quid though despite the exchange rate.
Yup, should be on the Raspberry Pi section of the site but doesn't seem to be for some reason, we'll try and get that fixed ASAP :)
SiriusHardware wrote:Hello CPC: I have a query which might defeat even your Pi guru, although he/she has always done amazingly well in the past. Re: Your combined keyboard / touchpad:
We shall try and find that out for you :)
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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 10:56 am

SiriusHardware wrote:Hello CPC: I have a query which might defeat even your Pi guru, although he/she has always done amazingly well in the past. Re: Your combined keyboard / touchpad:
The "Elen Microelectronics" is the chip manufacturer for the touchpad unfortunately they do not provide any specific linux drivers. There is a way to disable the double click function on the touchpad or "mouse" using xinput.
Please refer to the link below for further details.
http://www.raspberrypi.org/phpBB3/viewt ... 27&t=33730
I beleive the OS loads drivers from the xorg or Evdev config files. I've tried adding the touchpad in there to load the synaptics driver but unsuccesful unfortunately.

I'll keep playing and hopefully get it working :D
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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 3:04 pm

I don't think this idea of actively engaging with complaining and whinging customers is going to take off.

I mean - thing get sorted when we complain - no other company does that - you'll be bust within the year devoting all this time and effort (I'm assuming one person 1hr day on average) !

Do the management know you are actually helping us??

I wouldn't think so!

:)

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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 3:53 pm

simplesi wrote:I don't think this idea of actively engaging with complaining and whinging customers is going to take off.

I mean - thing get sorted when we complain - no other company does that - you'll be bust within the year devoting all this time and effort (I'm assuming one person 1hr day on average) !

Do the management know you are actually helping us??

I wouldn't think so!
It's a wacky wild crazy idea that we had, we know .. Customer Service :?

Management are aware of a bearded fellow running the building at break neck lightning speed answering all these things and finding out useful information but so far they've been unable to prove anything... :D
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sej7278
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Re: CPC are here to answer questions :)

Tue Mar 19, 2013 10:14 pm

CPC.co.uk wrote:It's a wacky wild crazy idea that we had, we know .. Customer Service :?
ah you'll get in trouble for that, its got to be against some EU regulations surely?

just bought my second model-b from yourselves, now i've just got to figure out how to unsubscribe from all your lovely catalogues for a while, or i'll come back from holiday and not be able to open the door!

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Re: CPC are here to answer questions :)

Wed Mar 20, 2013 8:02 am

sej7278 wrote:just bought my second model-b from yourselves, now i've just got to figure out how to unsubscribe from all your lovely catalogues for a while, or i'll come back from holiday and not be able to open the door!
If you send an email to social@cpc.co.uk we'll be able to take you off the list, but you'll need to do the same if you ever want to start receiving them again as well :)
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SiriusHardware
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Re: CPC are here to answer questions :)

Thu Mar 21, 2013 11:14 pm

CPC.co.uk wrote:
SiriusHardware wrote:Hello CPC: I have a query which might defeat even your Pi guru, although he/she has always done amazingly well in the past. Re: Your combined keyboard / touchpad:
The "Elan Microelectronics" is the chip manufacturer for the touchpad unfortunately they do not provide any specific linux drivers. There is a way to disable the double click function on the touchpad or "mouse" using xinput.
Please refer to the link below for further details.
http://www.raspberrypi.org/phpBB3/viewt ... 27&t=33730

I beleive the OS loads drivers from the xorg or Evdev config files. I've tried adding the touchpad in there to load the synaptics driver but unsuccesful unfortunately.

I'll keep playing and hopefully get it working :D
Thanks for looking into it, although the thread you've posted a link to is actually ... my thread :-). I can't get my head around how to use xinput to solve the problem yet, although I haven't given up hope that I might be able to work it out. From my investigations earlier Raspbian does seem to use the evdev driver for the keypad/touchpad combo. Incidentally, I also have a PC running Debian, which is obviously very similar to Raspbian, and I plugged it into that - same result, it is recognised as a keyboard and basic mouse only, so touchpad specific configuration options do not appear in the expected places.

This is getting a little bit beyond the level of what we can reasonably ask you to do for us here in this thread, but if you do happen to have any brainwaves on the matter I'd appreciate it if you could add anything you do find to the end of that 'Turn Off Tap To Click' thread you pointed to.

richo
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Re: CPC are here to answer questions :)

Tue Apr 02, 2013 5:27 pm

Hi,

Ive just received the plug n play kit with a 7 port usb hub (the cit one with horrendous leds). Im having a nightmare getting the hub recognised. My own 4 port works fine so I dontbknow if I'm doing something wrong or if theres a fault with the hub. Any ideas?

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