[Bug 76435] New: Lenovo T440s with Ultra Dock detects 2 Monitors as one with resolution 3840x1080
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Fri Mar 21 03:03:51 PDT 2014
https://bugs.freedesktop.org/show_bug.cgi?id=76435
Priority: medium
Bug ID: 76435
Assignee: chris at chris-wilson.co.uk
Summary: Lenovo T440s with Ultra Dock detects 2 Monitors as one
with resolution 3840x1080
QA Contact: intel-gfx-bugs at lists.freedesktop.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: peter.loeffler at herold.at
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: Driver/intel
Product: xorg
I have a Lenovo T440s with an Ultra Dock and 2 Samsung S27C450 monitors.
OS is Fedora 20 x86_64
[captain at HBDLAP7420 ~]$ uname -a
Linux HBDLAP7420.herold.intra 3.13.6-200.fc20.x86_64 #1 SMP Fri Mar 7 17:02:28
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
When i connect one monitor over DVI and one over Display Port they seams to be
detected as on big monitor.
[captain at HBDLAP7420 ~]$ xrandr
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 8192 x 8192
eDP1 connected (normal left inverted right x axis y axis)
1920x1080 60.0 +
1400x1050 60.0
1280x1024 60.0
1280x960 60.0
1024x768 60.0
800x600 60.3 56.2
640x480 59.9
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 connected primary 3840x1080+0+0 (normal left inverted right x axis y axis)
598mm x 336mm
1920x1080 60.0 +
3840x1080 60.0*
2560x1024 60.0
1680x1050 60.0
1600x900 60.0
1280x1024 75.0 60.0
1440x900 59.9
1280x800 59.8
1152x864 75.0
1280x720 60.0
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
HDMI2 disconnected (normal left inverted right x axis y axis)
[captain at HBDLAP7420 ~]$
[captain at HBDLAP7420 ~]$ sudo tail -f /var/log/messages
[sudo] password for captain:
Mar 21 10:54:31 HBDLAP7420 colord: Automatic metadata add
icc-2eeff3f924cdccc1a3cdf6f32dea4e8d to xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:31 HBDLAP7420 colord: Automatic metadata add
icc-1555cc1afbf2eb389d5e7c9736d1478f to xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:31 HBDLAP7420 colord: Automatic metadata add
icc-ca7c2359c3803aa888a8abfb9b699e9d to xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:31 HBDLAP7420 colord: Automatic metadata add
icc-c0f2c092037c424fa431217482fe2708 to xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:31 HBDLAP7420 colord: Device added: xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:32 HBDLAP7420 colord: device removed: xrandr-Samsung Electric
Company-S27C450-HMCD100462
Mar 21 10:54:34 HBDLAP7420 colord: Automatic metadata add
icc-b415c3a98e554b5fb918a2ca4e33e3a7 to xrandr-Samsung Electric
Company-S27C450-1515733334
Mar 21 10:54:34 HBDLAP7420 colord: Automatic metadata add
icc-1961a3a64e0b78cfa296c901bada1d1e to xrandr-Samsung Electric
Company-S27C450-1515733334
Mar 21 10:54:34 HBDLAP7420 colord: Device added: xrandr-Samsung Electric
Company-S27C450-1515733334
First i thought it is a hardware limitation but whis Windoof everything works
as expected.
When i use the VGA and the Mini Display Port of the Laptop directly (without
the Ultra Dock) the two monitors are also detected as two separate with
1920x1080.
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