Ubuntu
syslinux package

isolinux/gfxboot should use 640x400 not 640x480

Bug #31953 reported by Paul Sladen
6
Affects Status Importance Assigned to Milestone
syslinux (Ubuntu)
Invalid
Medium
Adam Conrad

Bug Description

isolinux is the bootloader used on the install and LiveCDs. On top of this, this the 'gfxboot' graphical patch is applied for extra visual pleasure.

The mode currently used is 640x480x4. This requires 153kB of memory and does not work on several laptops that feature a minimal VGA BIOS and/or only have 128kB of RAM mapped.

The 640x400x4 mode should be used instead which only requires 125kB of RAM; It will always work as it os mode that PCs boot up in.

For Ubuntu, vga16fb has already been upated in this fashion in an attempt to cure such bugs.

Matt Zimmerman (mdz)
Changed in syslinux:
assignee: nobody → adconrad
Tollef Fog Heen (tfheen)
Changed in syslinux:
status: Unconfirmed → Confirmed
Revision history for this message
Tollef Fog Heen (tfheen) wrote :

I presume you're aware that gfxboot uses VESA modes and not VGA modes directly?

Revision history for this message
Paul Sladen (sladen) wrote :

This was raised in response to some Acers(?) that don't even make it to the gfxboot stage. I'm going to set this to Rejected for the moment and reopen it when I next come across the issue (I don't have any hardware myself that doesn't make it that far).

Changed in syslinux:
status: Confirmed → Rejected
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