linux_dsm_epyc7002/drivers/video/console
Stefan Bader b175dc0928 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>
2009-05-02 15:36:10 -07:00
..
.gitignore sparc: Ignore drivers/video/console/promcon_tbl.c conmakehash generated file 2008-07-30 16:49:52 -07:00
bitblit.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
dummycon.c
fbcon_ccw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_cw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_rotate.c
fbcon_rotate.h
fbcon_ud.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon.c fbdev: fix info->lock deadlock in fbcon_event_notify() 2009-04-13 15:04:28 -07:00
fbcon.h fbcon: fix monochrome color value calculation 2008-10-02 15:53:13 -07:00
font_6x11.c
font_7x14.c
font_8x8.c
font_8x16.c
font_10x18.c
font_acorn_8x8.c
font_mini_4x6.c
font_pearl_8x8.c
font_sun8x16.c
font_sun12x22.c
fonts.c cleanup after APUS removal 2008-02-06 10:41:01 -08:00
Kconfig x86 setup: remove remnants of CONFIG_VIDEO_SELECT (read: vga=) 2008-09-03 14:12:39 -07:00
Makefile
mdacon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
newport_con.c
prom.uni
promcon.c
softcursor.c
sticon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
sticore.c sticore: don't activate unsupported GSC STI cards on HPPA 2008-07-30 09:41:43 -07:00
tileblit.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
vgacon.c vgacon: return the upper half of 512 character fonts 2009-05-02 15:36:10 -07:00