Screen doesnot expand (or small screen)

[pdk]

Hi ,

The linux screen doesnot expand , even after the guest additions installation. Could some experts please help me with this. (wasted quite sometime, by installing guest additions didnot help).

I am reusing the VM which is already there.

Regards
Pdk

[mpack]

Please provide a VM log file. With the VM fully shut down, right click it in GUI. Select "Show Log" and save "VBox.log" (ONLY) to a zip file. Attach the zip here.

[mpack]

Pasted text deleted. Please read my instructions more carefully.

[pdk]

Sorry, attached it now.

[mpack]

Any reason why you're still on 5.1.4? Obviously it is counter productive for us to spend time on issues that may already have been fixed. I suggest that you upgrade to 5.1.26 (including the Guest Additions) and see if you still have a problem. This is just a general principle, I'm not saying that you have encountered a bug.

Also, and I don't know if this is the problem, the severe lack of graphics RAM allocated to the VM could very well limit the obtainable display size. I would have thought that the VM settings dialog was already warning you about this.

00:00:00.627831 VRamSize <integer> = 0x0000000001000000 (16 777 216, 16 MB)

Your host is not short of RAM (15GB available), so I'd suggest that you bump the graphics RAM in this VM up to 128MB.

Less happily, you are overcommitting CPU. It is unlikely that this is causing your display problems however - but it can lead to instability in general.

00:00:00.627560 NumCPUs <integer> = 0x0000000000000004 (4)
...
00:00:00.914200 CPUM: Physical host cores: 4

I would reduce vCPU allocation to the VM to 2 cores.

[pdk]

I changed the ram size to 128MB, but no much use.

And reg 5.1.4, . Is there , any yum update to install this version ? I have forgotten, how I did for my old machine

[mpack]

Sorry, I'm not a Linux user so I can't advise you on Linux matters.

Incidentally, what is the host? And what desktop does this host use? All you've mentioned so far is the guest. I can see from the log that it's Linux, but it's unusual to see xfs selected as the filesystem in a Linux host. Some of the features we are discussing is greatly dependent on the quality of host drivers.

Another thing you can tell me is the setting (in the front end UI) of File|Preferences|Display|Max Guest Screen Size.

[Perryg]

I would be interested to know if this guest actually has a desktop or is it a server install ( command line only ).
Also what the exact and complete version of redhat this is.

[pdk]

Another thing you can tell me is the setting (in the front end UI) of File|Preferences|Display|Max Guest Screen Size.

Set to Automatic

[pdk]

I would be interested to know if this guest actually has a desktop or is it a server install ( command line only ).
Also what the exact and complete version of redhat this is.

I am sshing to the host machine where the VM is installed.

[Perryg]

That's fine but it really does not answer my questions.

[pdk]

OK, the machine lets say named "Remotehost" donot have a display connected to it. And I am using ssh from my local machine to the "Remotehost" and tried this command.

[root@localhost ~]# uname -a
Linux localhost.localdomain 3.10.0-327.22.2.el7.x86_64 #1 SMP Thu Jun 23 17:05:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

[Perryg]

Can you post the actual command you use to ssh into the remote unite? ( do not post actual addresses or passwords ).

[pdk]

From my machine, I give,

> ssh RemotehostIP
RemotehostIP> uname -a

[Perryg]

OK so let's go further into the guest. Post the results of the following from the guests terminal:

• cat /etc/redhat-release
  cat /var/log/Xorg.0.log
  cat /var/log/vboxadd-install.log