diff options
| -rw-r--r-- | drivers/video/aty/radeon_i2c.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/aty/radeon_i2c.c b/drivers/video/aty/radeon_i2c.c index e87ef153d87bb..762244164c81a 100644 --- a/drivers/video/aty/radeon_i2c.c +++ b/drivers/video/aty/radeon_i2c.c @@ -236,6 +236,12 @@ int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_e if (edid) break; } + /* Release the DDC lines when done or the Apple Cinema HD display + * will switch off + */ + OUTREG(reg, INREG(reg) & ~(VGA_DDC_CLK_OUT_EN | VGA_DDC_DATA_OUT_EN)); + (void)INREG(reg); + if (out_edid) *out_edid = edid; if (!edid) { |