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Re: [K12OSN] Resolution Config Problem



> On Nov 11, 2009, at 9:31 AM, Eric John Nagel wrote:
>
>> Greetings,
>> We are having a problem getting anything but the default 800x600
resolution on our Netier XL1000 thin clients.  These clients use a
trident
>> video chipset which we know works at 1024x768 on our old LTSP
>> Fedora 6.
>> We have just installed K12Linux on a new server with F11.  No
>> matter what
>> we have tried in the /opt/ltsp/i386/etc/lts.conf file the
>> resolution stays
>> the same.
> You want to use the lts.conf file in /var/lib/tftpboot/ltsp/i386/, IIRC
the file in /opt/ltsp is the old location, and isn't used
> anymore. Try adding X_MODE_0 = 1024x768 to that file.
> Sometimes this happens because it is detecting the video chipset wrong
and using a lower resolution. If you and a shell on one of the client
screens you should be able to check what it's using. You can specify
X_COLOR_DEPTH = 16 and XSERVER  = trident if it still won't give you the
right resolution. I think it defaults to 24 bit color on Fedora, which
causes a problem for some older video cards, especially at higher
resolutions.

OK... Thanks for that info!  We edited that file
/var/lib/tftboot/ltsp/i386/lts.conf and added the following under
[DEFAULT]:
XSERVER=trident
X_COLOR_DEPTH=16
X_MODE_0=1024x768

and it still would only boot to 800x600.  This is what displays as the max
resolution under System/Preferences/Display.

I still would like an answer to the following questions, to help diagnose
the problem.  We rebooted everything for this experiment.  We also tried:
XRANDR_MODE_0="1024x768"

>> a couple questions:
>> 1. How does one tell if the /opt/ltps/i386/etc/lts.conf file is being
read?

I have noticed that the command xvinfo does give back that it is running
on the trident driver; see bellow.  The server gives back a result of NV
drivers for the same command, which is correct b/c it has a NVidia.

>> 2. Once lts.conf is configured (or edited) what must be done to read file?
>>    a. client logout
>>    b. client xwindows restart (how?)
>>    c. client reboot
>>    d. ltsp server reboot
>

xvinfo output:
X-Video Extension version 2.2
screen #0
  Adaptor #0: "Trident Backend Scaler"
    number of ports: 1
    port base: 57
    operations supported: PutImage
    supported visuals:
      depth 16, visualID 0x21
    number of attributes: 5
      "XV_COLORKEY" (range 0 to 16777215)
              client settable attribute
              client gettable attribute (current value is 2110)
      "XV_SATURATION" (range 0 to 187)
              client settable attribute
              client gettable attribute (current value is 80)
      "XV_BRIGHTNESS" (range 0 to 63)
              client settable attribute
              client gettable attribute (current value is 45)
      "XV_HUE" (range 0 to 360)
              client settable attribute
              client gettable attribute (current value is 0)
      "XV_CONTRAST" (range 0 to 7)
              client settable attribute
              client gettable attribute (current value is 4)
    maximum XvImage size: 1024 x 1024
    Number of image formats: 3
      id: 0x36315652 (RV16)
        guid: 52563136-0000-0000-0000-000000000000
        bits per pixel: 16
        number of planes: 1
        type: RGB (packed)
        depth: 16
        red, green, blue masks: 0xf800, 0x7e0, 0x1f
      id: 0x32315659 (YV12)
        guid: 59563132-0000-0010-8000-00aa00389b71
        bits per pixel: 12
        number of planes: 3
        type: YUV (planar)
      id: 0x32595559 (YUY2)
        guid: 59555932-0000-0010-8000-00aa00389b71
        bits per pixel: 16
        number of planes: 1
        type: YUV (packed)



Shlama w'burkate, ejn





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