[K12OSN] Resolution Config Problem
Eric John Nagel
enagel at northlakechristian.org
Wed Nov 11 21:52:49 UTC 2009
> 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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