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-rw-r--r--src/i830_crt.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/i830_crt.c b/src/i830_crt.c
index 5812e2b7..2e70eb8d 100644
--- a/src/i830_crt.c
+++ b/src/i830_crt.c
@@ -161,6 +161,14 @@ i830_crt_detect_hotplug(xf86OutputPtr output)
uint32_t temp;
const int timeout_ms = 1000;
int starttime, curtime;
+ int tries = 1;
+
+ /* On 4 series, CRT detect sequence need to be done twice for safe. */
+ if (IS_G4X(pI830))
+ tries = 2;
+
+retry:
+ tries--;
temp = INREG(PORT_HOTPLUG_EN);
@@ -173,6 +181,9 @@ i830_crt_detect_hotplug(xf86OutputPtr output)
break;
}
+ if (tries > 0)
+ goto retry;
+
if ((INREG(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_MONITOR_MASK) ==
CRT_HOTPLUG_MONITOR_COLOR)
{