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authorStefan Bader <stefan.bader@canonical.com>2009-04-30 18:08:44 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-05-02 18:36:10 -0400
commitb175dc09285b36200a83b78baf167905181fb4e5 (patch)
treea361d51f7fe880feccfcf365cfed1fe549970a8a
parentae3abae64f177586be55b04a7fb7047a34b21a3e (diff)
vgacon: return the upper half of 512 character fonts
Uwe Geuder noted that he gets random bitmaps on a text console if he tried to type extended characters (like the e acute). For him everything above unicode 0xa0 was corrupted. After some digging there seems to be a little culprit in vgacon since the beginning of ages (well git). The function vgacon_font_get will store the number of characters correctly in font->charcount but then calls to vgacon_do_font_op(..., 0, 0). Which means only the lower 256 characters are actually stored to the fontdata. The rest is left untouched. So the next time that saved data is used, the garbled font appears. This happens on every switch between text consoles. Addresses https://bugs.launchpad.net/ubuntu/+source/linux/+bug/355057 Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Tested-by: Uwe Geuder <ubuntuLp-ugeuder@sneakemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/console/vgacon.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index d012edda6d11..38e86b84dce0 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -1282,7 +1282,7 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font)
1282 font->charcount = vga_512_chars ? 512 : 256; 1282 font->charcount = vga_512_chars ? 512 : 256;
1283 if (!font->data) 1283 if (!font->data)
1284 return 0; 1284 return 0;
1285 return vgacon_do_font_op(&state, font->data, 0, 0); 1285 return vgacon_do_font_op(&state, font->data, 0, vga_512_chars);
1286} 1286}
1287 1287
1288#else 1288#else