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uoitsci / linux

Linux support for Faculty of Science students at UOIT
http://science.uoit.ca/
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Garbled Boot Screen on Dell Latitude E5450 #1

Closed rdrake closed 9 years ago

rdrake commented 9 years ago

When the GRUB countdown timer is allowed to expire on the Dell Latitude E5450, the default OS boot screen (Windows 8.1) shows up as a garbled mess. This may cause students to power off the machine and phone the service desk.

An untested workaround involves changing the GRUB_GFXMODE variable (in /etc/default/grub) to manually specify the screen resolution.

GRUB_GFXMODE="1366x768x32"

After this is done, GRUB must be updated.

$ [sudo] update-grub

This fix may be pushed out via the model-specific package, dell-e5450.

rdrake commented 9 years ago

This is also an issue when GRUB_TIMEOUT is greater than or equal to 10. Setting it to 9 or below appears to fix it. In fact, changing the GRUB_TIMEOUT only and leaving GRUB_GFXMODE commented seems to fix this issue.

Commit da0b36f also sets GRUB_TIMEOUT=5 to avoid this.