Member Avatar for theashman88

I"m running fedora 13 in virtual box and when I go to display settings, it is set to 61 hertz and 800x600 screen resolution. It won't give me any other options other than making the resolution 640x480. I can't change the refresh rate either its stuck at 61 hertz. Any idea what I can do to change the resolution

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  • Latest Post Latest Post by belocus

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reported a Fedora 13 guest stuck at 800x600 and 61 Hz. 's VM-side tips (more video RAM and 3D) and 's note about installing the VirtualBox guest components are good starting points. Several follow-up steps are often required for Linux guests, though, so the checklist below fills the gaps most people miss.

Inside the guest, the Guest Additions installer must build against the running kernel. Kernel headers/devel and basic build tools (gcc, make, etc.) need to match the kernel shown by uname -r. The Guest Additions ISO should be mounted from the VirtualBox menu and the Linux installer run from that mount point. Example (run from the mounted directory):

sudo sh ./VBoxLinuxAdditions.run

After the installer completes, the guest should be rebooted. The VirtualBox "Auto-resize Guest Display" (View menu) lets the host window drive the guest X resolution. If auto-resize still fails, confirm the VirtualBox guest kernel modules and the video driver are loaded, inspect Xorg logs for a vbox video driver entry, and list available modes with xrandr; adding a custom mode with xrandr is a common recovery path when EDID is not detected.

If the installer fails with compile errors, that usually means a kernel-devel/headers mismatch or missing build tools. Because Fedora 13 is an old, unsupported release, compatibility issues with modern VirtualBox builds are possible; using Guest Additions that match the host VirtualBox version or upgrading the guest OS are the most reliable long-term fixes. The persistent "61 Hz" reading typically indicates a fallback (VESA) driver rather than a true refreshed monitor timing.

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Member Avatar for rubberman

In virtualbox you have a number of machine settings. One is for the virtual video adapter (Display settings). You need to increase the memory to the max (128MB), and for Linux clients enable 3d acceleration (2d is for Windows operating systems). Doing this I can use a 1920x1200 HD display with full color.

commented: Thanks for the help. Quick and clean +1
Member Avatar for theashman88

Thanks

Member Avatar for belocus

you must install :

virtualbox-guest-additions-iso
virtualbox-guest-dkms 
virtualbox-guest-source
virtualbox-guest-utils  
virtualbox-guest-x11
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