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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-11 00:07:03 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-11 00:07:03 -0400 |
| commit | cd04b947bc674f8fc9cac38ec30497bae5d664ad (patch) | |
| tree | 988b0b7ea08063e5499672346eb2f619f0629717 /Documentation/fb/vesafb.txt | |
| parent | b3df9f813bc7b9db62ae0c90b8990b1cebf97345 (diff) | |
| parent | bc68552faad0e134eb22281343d5ae5a4873fa80 (diff) | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'Documentation/fb/vesafb.txt')
| -rw-r--r-- | Documentation/fb/vesafb.txt | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/Documentation/fb/vesafb.txt b/Documentation/fb/vesafb.txt index 814e2f56a6a..62db6758d1c 100644 --- a/Documentation/fb/vesafb.txt +++ b/Documentation/fb/vesafb.txt @@ -144,7 +144,21 @@ vgapal Use the standard vga registers for palette changes. This is the default. pmipal Use the protected mode interface for palette changes. -mtrr setup memory type range registers for the vesafb framebuffer. +mtrr:n setup memory type range registers for the vesafb framebuffer + where n: + 0 - disabled (equivalent to nomtrr) + 1 - uncachable + 2 - write-back + 3 - write-combining (default) + 4 - write-through + + If you see the following in dmesg, choose the type that matches the + old one. In this example, use "mtrr:2". +... +mtrr: type mismatch for e0000000,8000000 old: write-back new: write-combining +... + +nomtrr disable mtrr vremap:n remap 'n' MiB of video RAM. If 0 or not specified, remap memory |