diff options
Diffstat (limited to 'drivers/video/console')
| -rw-r--r-- | drivers/video/console/vgacon.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index 167de397e4b..f4e1c4b4191 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -503,10 +503,16 @@ static int vgacon_doresize(struct vc_data *c, { unsigned long flags; unsigned int scanlines = height * c->vc_font.height; - u8 scanlines_lo, r7, vsync_end, mode; + u8 scanlines_lo, r7, vsync_end, mode, max_scan; spin_lock_irqsave(&vga_lock, flags); + outb_p(VGA_CRTC_MAX_SCAN, vga_video_port_reg); + max_scan = inb_p(vga_video_port_val); + + if (max_scan & 0x80) + scanlines <<= 1; + outb_p(VGA_CRTC_MODE, vga_video_port_reg); mode = inb_p(vga_video_port_val); |