From 25e826383aad600be87cf771d0094f43783d85ec Mon Sep 17 00:00:00 2001 From: Frans Pop Date: Fri, 3 Oct 2008 18:40:51 +0000 Subject: Some laptops show a blank display with the vga16 framebuffer, but work correctly with the VESA framebuffer --- en/boot-installer/trouble.xml | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'en/boot-installer/trouble.xml') diff --git a/en/boot-installer/trouble.xml b/en/boot-installer/trouble.xml index 694b34a1a..bb3931c56 100644 --- a/en/boot-installer/trouble.xml +++ b/en/boot-installer/trouble.xml @@ -321,11 +321,29 @@ disables this test. +Some systems (especially laptops) that have a native resolution that is not +a 4:3 ratio (i.e. not for example 800x600 or 1024x768) may have a blank +display after the installer has been booted. In that case adding the boot +parameter vga=788 + + +The parameter vga=788 will activate the VESA +framebuffer with a resolution of 800x600. This will probably work, but may +not be the optimal resolution for your system. A list of supported +resulutions can be obtained by using vga=ask, but +you should be aware that list may not be complete. + + + may help. If that does not work, +try adding the boot parameter fb=false. + + + If your screen begins to show a weird picture while the kernel boots, eg. pure white, pure black or colored pixel garbage, your system may contain a problematic video card which does not switch to the framebuffer mode properly. Then you can use the boot parameter -fb=false video=vga16:off to disable the framebuffer +fb=false to disable the framebuffer console. Only a reduced set of languages will be available during the installation due to limited console features. See for details. -- cgit v1.2.3