Xorg Problem

KOTAPAKA · 03-24-2008, 09:50 AM

Hello
I installed the ATI Diver from the official ati package. Then edited the /etc/X11/xorg.conf renaming my videocard with the right name and making it use the fglrx driver. Now I added fglrx to /etc/modules. Everything is fine now - I get 3D rendering and my videocard is working very well. There is a new problem though - when I open my System Monitor and make it show all processes I get 2 Xorg's - each using up to 70 MB. Now first I don't know why Xorg uses that much as at the beggining it used as little as 5 MB and I'v never seen it use more than 30-35MB. What bothers me more is that I get DD - ie Double Damage - not only are they using a lot of memory but they've clonned themselves. Any suggestions why this is so and how to fix it. Focus on the latter

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Pearlseattle · 03-24-2008, 10:54 AM

I've seen that as well using an ATI x1550 card, but I didn't investigate any further as I was already happy to have everything working. Did you check if one of the X is a child of the other one?

KOTAPAKA · 03-25-2008, 04:42 AM

how can I do that? I mean check this out:
http://img225.imageshack.us/my.php?i...eenshotxd6.png
It's a screenshot of the processes. They are completely the same with different IDs. I you look donw you can see 2 gdm's as well.

Pearlseattle · 03-26-2008, 12:17 PM

To see the parent/child relationship you could install "htop", which displays in the console all processes in a tree-like structure, or run the command...

Code:

ps -Al | head -n 1 && ps -Al | grep X

...which will display the information for all processes called "X" (in your case you might have to replace the "X" with "Xorg" - don't know how your process is called). You could get an output similar to this (this is not my real output - just to show you):

Code:

F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
4 S     0  3775  3774  0  74  -1 - 20286 -      tty7     00:02:25 X
4 S     0  3776  3775  0  74  -1 - 20286 -      tty7     00:02:25 X

Here you see that the X-process with the PID 3776 has as PPID (Parent PID) the one with the ID 3775, which is as well an "X"-process.
And about the memory you see that is allocated: in Linux many processes share the same memory, which could mean in your case that it's not that you get those 64MB allocated twice, but that both X-processes are sharing a single 64MB amount of RAM. I didn't understand yet how to find out if a certain amount of RAM is shared or if it isn't...

KOTAPAKA · 03-27-2008, 01:46 AM

Code:

F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
4 S     0  2703  2702  0  75   0 - 17860 -      tty7     00:01:24 Xorg
1 S     0  2830  2703  0  84   0 - 17860 KAS_Ev tty7     00:00:00 Xorg

Here is my output. Take a look at this:
http://img247.imageshack.us/img247/4...hot1ca8.th.png
I think they one of the Xorgs is a parent of the other.

Pearlseattle · 03-28-2008, 01:54 AM

Yes, you're right. And the parent used 1:24 minutes of CPU time, while the child 0. So, what you have might be normal.
Greetings.