[PATCH 4/5] fbdev: tdfxfb: Wake the VGA core before programming the CRTC
From: Daniel Palmer <hidden>
Date: 2026-07-30 18:27:24
Also in:
dri-devel, lkml
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
If the card was unbooted the VGA core needs to be woken up before poking at it. Signed-off-by: Daniel Palmer <redacted> --- drivers/video/fbdev/tdfxfb.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index 4c1d847c89c9..9d55efd2c934 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c@@ -482,6 +482,10 @@ static void do_write_regs(struct fb_info *info, struct banshee_reg *reg) tdfx_outl(par, MISCINIT1, tdfx_inl(par, MISCINIT1) | 0x01); + /* Wake the VGA core if it hasn't already been woken up */ + tdfx_outl(par, VGAINIT0, reg->vgainit0); + vga_outb(par, 0x3c3, 0x01); + crt_outb(par, 0x11, crt_inb(par, 0x11) & 0x7f); /* CRT unprotect */ banshee_make_room(par, 3);
--
2.53.0