Mailinglist Archive: radeonhd (290 mails)
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[radeonhd] [Bug 16969] RS780 badly restores VGA console
- From: bugzilla-daemon@xxxxxxxxxxxxxxx
- Date: Mon, 11 Aug 2008 00:52:09 -0700 (PDT)
- Message-id: <20080811075210.33A17130078@xxxxxxxxxxxxxxxxxxxxxxxx>
http://bugs.freedesktop.org/show_bug.cgi?id=16969
--- Comment #4 from Egbert Eich <eich@xxxxxxxxxxxxxxxxxxx> 2008-08-11 00:52:08
PST ---
(In reply to comment #3)
Since VGA has its own VGAHDP we should not compare the VGAHDP address to the
HDP address but the the MC_FB_LOCATION (or a comparable register on later
hardware). The reason why most people are not seeing this bug is because the
kernel restores everything. I cannot even see a restore problem when I
completely disable VGA save/restore. This is because the Linux kernel does font
save restore as well as repaint the screen.
Looking at the screen shot suggests the following: the space character in the
font data is broken while the fonts are ok?
What do you get when you type on the console? Does a space also produce a
broken character?
What happens when you do 'setfont' on the console?
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--- Comment #4 from Egbert Eich <eich@xxxxxxxxxxxxxxxxxxx> 2008-08-11 00:52:08
PST ---
(In reply to comment #3)
Luc Verhaegen said that this only happens on cards and IGPs with broken BIOS,I don't think that's the reason.
not all of them, but fixing it won't be a problem since we already do a sanity
check beofre applying any hacks, so non-broken cases won't be affected.
Egbert, what board do you have?
Since VGA has its own VGAHDP we should not compare the VGAHDP address to the
HDP address but the the MC_FB_LOCATION (or a comparable register on later
hardware). The reason why most people are not seeing this bug is because the
kernel restores everything. I cannot even see a restore problem when I
completely disable VGA save/restore. This is because the Linux kernel does font
save restore as well as repaint the screen.
Looking at the screen shot suggests the following: the space character in the
font data is broken while the fonts are ok?
What do you get when you type on the console? Does a space also produce a
broken character?
What happens when you do 'setfont' on the console?
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