Stefan's questions

I have two FullHD monitors attached to my ATI graphics card [2]. The resolution of both of them is detected properly without any modifications to /etc/X11/xorg.conf. I can run both of them in clone mode. However, when I try to run them next to each other, I got the following error: The selected configuration for displays could not be applied. If tried to fix this according to [1]. My xorg.conf now looks like this:

Section "Module"                                                                
        Load    "glx"                                                           
EndSection                                                                      

Section "Screen"                                                                
        Identifier      "Default Screen"                                        
        DefaultDepth    24                                                      
        SubSection "Display"   
              # The 1088 is the smallest multiple of 32 >= 1088
              # see manpages                                               
              Virtual 1920 1088                                               
        EndSubSection                                                         
EndSection 

This does not seem to be parsed properly. After restarting X, I cannot set resolutions beyond 1600 or so any more. /var/log/Xorg.0.log gives:

[    15.676] (II) fglrx(0): Not using mode "1920x1080" (width too large for virtual size)
[    15.676] (II) fglrx(0): Not using mode "1680x1050" (width too large for virtual size)

Are my modifications syntactically incorrect? According to the man page, it should be fine. Any ideas?

OS: Ubuntu 11.10 64bit

[1] https://askubuntu.com/a/75546/5023
[2] 01:00.0 VGA compatible controller: ATI Technologies Inc Juniper [Radeon HD 5700 Series]

I have been managing a Ubuntu Server 8.04 for quite some time now. On top of it I am running a VMWare Server Edition, which needs to recompile it's modules whenever a new kernel is installed. For that I'm executing: sudo vmware-config.pl

Until now, whenever a new version of the kernel was available I installed it, rebooted the system and rebuild the modules. But now I realized - rather by accident -, that rebuilding those kernel modules even worked without rebooting the system. VMWare is even able to startup again after that. That made me curious. I entered uname -r to see the kernel version, which showed me exactly the version I installed right before without rebooting the system.

The Manpages for uname are not exactly detailed on what is actually printed, but so far I thought it printed the actually running kernel version.

My question now is: Is it really possible the kernel reloads itself without rebooting? I did not install ksplice or a similar tool. From what I get it is now even in the repositories for Ubuntu Server 8.04. What's going on with my system? Do I have to reboot after the kernel update or not? What does uname -r print? Is the Ubuntu Server Edition shipped with a program similar to ksplice? I never read anything about a feature like that!

I checked what kees told me to do:

uname -r
2.6.24-28-server

The file in proc gave:

cat /proc/version_signature
Ubuntu 2.6.24-28.75-server

And dpkg:

dpkg -l 'linux-image*' | grep ^.i
ii  linux-image-2.6.24-28-server          2.6.24-28.80

Obviously I should do a reboot then :) Thanks for the detailed information!