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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-05-24 10:41:57 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-05-29 12:49:00 +0300 |
| commit | b6d572aeb58a5e0be86bd51ea514c4feba996cc4 (patch) | |
| tree | 3296fc4d4f8b4f5b5821a2b71762c5c3056936ae /drivers/thunderbolt | |
| parent | 70c2e03e9aaf17496c63f6e42333c012f5ae5307 (diff) | |
| download | linux-stable-b6d572aeb58a5e0be86bd51ea514c4feba996cc4.tar.gz linux-stable-b6d572aeb58a5e0be86bd51ea514c4feba996cc4.tar.bz2 linux-stable-b6d572aeb58a5e0be86bd51ea514c4feba996cc4.zip | |
thunderbolt: Increase DisplayPort Connection Manager handshake timeout
It turns out that when plugging in VGA cable through USB-C to VGA/DVI
dongle the Connection Manager handshake can take longer time, at least
on Intel Titan Ridge based docks such as Dell WD91TB. This leads to
following error in the dmesg:
thunderbolt 0000:00:0d.3: 3:10: DP tunnel activation failed, aborting
and the display stays blank (because we failed to establish the tunnel).
For this reason increase the timeout to 3s.
Reported-by: Koba Ko <koba.ko@canonical.com>
Cc: stable@vger.kernel.org
Acked-By: Yehezkel Bernat <YehezkelShB@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/tunnel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c index 9099ae73e78f..4f222673d651 100644 --- a/drivers/thunderbolt/tunnel.c +++ b/drivers/thunderbolt/tunnel.c @@ -526,7 +526,7 @@ static int tb_dp_xchg_caps(struct tb_tunnel *tunnel) * Perform connection manager handshake between IN and OUT ports * before capabilities exchange can take place. */ - ret = tb_dp_cm_handshake(in, out, 1500); + ret = tb_dp_cm_handshake(in, out, 3000); if (ret) return ret; |