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Old 08-09-2008, 09:05 AM   #1
Uzelth
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Webcam and memory problems


Heya,

Since installing Ubuntu, I installed the uvcvideo module for my HP Webcam which seems to semi work... The cam outputs an image/video Cheese just fine... but with aMSN and flash chat services the cam doesn't even power on...

Other problem is I have 4Gb RAM in this laptop - It registers 4096Mb during the post, so it's all there... But top says theres only 3890120k total... So I'm missing some RAM somewhere... My graphics card is an nVidia GeForce 8400 GS (256Mb dedicated)... I'm wondering if somehow Ubuntu is assigning it shared memory as the sysinfo app says there's an unknown amount of video RAM available/in use... My xorg.conf has VideoRam set to 262144 also btw.

Any ideas on how to solve these problems?
 
Old 08-09-2008, 09:26 AM   #2
serafean
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Hi,

Quote:
with aMSN
check that aMSN is configured to use the right device (/dev/video0, I think, but since Cheese works, check it there).

As for your memory problem : I guess you installed the 32bit version of ubuntu, a 32 bit OS can not see 4 GB of RAM, to remedy this, install the highmem kernel.
 
Old 08-13-2008, 08:21 PM   #3
Uzelth
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Quote:
Originally Posted by serafean View Post
Hi,

check that aMSN is configured to use the right device (/dev/video0, I think, but since Cheese works, check it there).
I'll check this one out

Quote:
Originally Posted by serafean View Post
As for your memory problem : I guess you installed the 32bit version of ubuntu, a 32 bit OS can not see 4 GB of RAM, to remedy this, install the highmem kernel.
I definitely installed 64-bit, it just doesn't want to see all the memory... I've different modules too, but it's always 3890168k displayed by top... I'm wondering if Ubuntu is shifting some of it to the graphics card :\
 
Old 08-14-2008, 09:58 AM   #4
Uzelth
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It would seem that Linux is shunting some of the memory to the graphics card... I've installed Arch Linux (x86_64), which shows the same total memory... The NVIDIA X Server Settings says I have 512Mb graphics card memory - when the card is 256Mb dedicated.

How'd I go about getting the memory back? I've set VideoRam 262144 in xorg.conf, which doesn't seem to do anything.

Seems odd that it does this... When I ran Vista, briefly, it reported the system had 4.00Gb RAM... So something is going on :\
 
Old 08-16-2008, 01:18 AM   #5
serafean
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Check the bios settings, thats where I'd look for dedicated/shared memory settings

you can also check the status of RAM via "cat /proc/meminfo" but I fear it will only show the 3.8 GB...
 
  


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