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| Open Terminal | |
| Type: sudo vi /etc/default/grub | |
| Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT, and add | |
| video=hyperv_fb:[the resolution you want]. | |
| GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1920x1080" | |
| Write the changes and quit vi. | |
| Run: sudo update-grub | |
| Reboot the virtual machin | |
| See https://github.com/LIS/LIS3.5/blob/master/hv-rhel5.x/hv/hyperv_fb.c for details | |
| * This is the driver for the Hyper-V Synthetic Video, which supports | |
| * screen resolution up to Full HD 1920x1080 with 32 bit color on Windows | |
| * Server 2012, and 1600x1200 with 16 bit color on Windows Server 2008 R2 | |
| * or earlier. | |
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