I submitted bug 548626 regarding the fact that the guest VM does not recognize the fullest screen resolution of the host monitor. My bug report was closed as being "notabug." This was also identified as a bug in report 479792 previously. In addition bug reports 474831 and 509117 document screen resolution issues related to the guest. These bug reports were also closed with no corrective action.
This is a bug and needs to be addressed.
Paul
2010/2/14 Paul Lambert eb30750@gmail.com:
I submitted bug 548626 regarding the fact that the guest VM does not recognize the fullest screen resolution of the host monitor. My bug report was closed as being "notabug." This was also identified as a bug in report
If I understand you correctly, then it sounds like you're missing some basic understanding of how virtual machines works.
1. Your host system have access to the screen resolution because it have access to your graphics card and the monitor connected to your graphics card. 2. Your VM will never have access to your graphics card or your monitor, as your host will _emulate_ a graphics card for your VM with no connection to or knowledge about your physical graphics card or physical monitor.
Try to run: lspci | grep VGA on both your host and in your VM and you'll see what graphics card each machine have. As you will see, your VMs have their own graphics cards with no connection to your host graphics card. Eg. they will never know anything about your monitor.
This is a bug and needs to be addressed.
No, this is not a bug, this is how it is supposed to work.
To archive what you want, eg. to have other resolutions in your VM, you can try emulate other graphics cards. You probably have a Cirrus Logic graphics card emulated in your VM now, try with some of the others, if I remember correctly "Standard VGA" or "Vesa" will allow you to use more (higher) resolutions.
Best Regards Kenni Lund
On 16/02/10 00:35, Kenni Lund wrote:
To archive what you want, eg. to have other resolutions in your VM, you can try emulate other graphics cards. You probably have a Cirrus Logic graphics card emulated in your VM now, try with some of the others, if I remember correctly "Standard VGA" or "Vesa" will allow you to use more (higher) resolutions.
You're quite correct that you need to use a different emulated graphics card to get higher resolutions, but even then you will (with a linux guest) need to write an xorg.conf by hand to get those modes as there is no emulated monitor to respond to DDC queries from X with a list of available resolutions so it defaults to only allowing a couple of low resolution modes.
Windows guests do seem to allow a wider choice of resolutions by default when there is no monitor available to respond to DDC queries.
Tom
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Kenni Lund -
Paul Lambert -
Tom Hughes