Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

Hi guys,

I can confirm that the issue is solved after the update of
xserver-xorg-video-intel with backports Jessie:

xserver-xorg-video-intel  2:2.99.917-2~bpo8+1
 amd64X.Org X server -- Intel i8xx, i9xx display driver


Thanks a lot for support


On Mon, Feb 8, 2016 at 6:56 PM, Fedele Mantuano 
wrote:

> Yes Don,
>
> I updaded xserver-xorg-video-intel with backports, but I will come back in
> office tomorrow so I will try this change.
>
> Thanks a lot.
>
> On Mon, Feb 8, 2016 at 6:29 PM, Don Armstrong  wrote:
>
>> On Fri, 05 Feb 2016, Fedele Mantuano wrote:
>> > This is the syslog part after deattach dock station:
>> > http://pastebin.com/rfgSkpKS.
>> > When I deattach the docking station the PC do a logout.
>>
>> This looks like an issue with the dock station hotplugging a PCI device
>> and it not being detected by X properly.
>>
>> IIRC, one of the on-dock DP ports on the ThinkPad docks is the same as
>> the mini DP port on the laptop; that output should always work. So if
>> you only need a single output, that's a potential work-around.
>>
>> Beyond that, I think this might be a missing feature in the version of
>> the xserver-xorg-video-intel driver that you have in Debian vs whatever
>> version you had installed in Ubuntu.
>>
>> I'd compare the two versions, and possibly upgrade your jessie install
>> of xserver-xorg-video-intel to the one in backports, which is
>> 2:2.99.917-2~bpo8+1, and significantly newer than 2:2.21.15-2+b2.
>>
>> --
>> Don Armstrong  http://www.donarmstrong.com
>>
>> Nothing is as inevitable as a mistake whose time has come.
>>  -- Tussman's Law
>>
>>
>
>
> --
> *Fedele Mantuano*
>



-- 
*Fedele Mantuano*

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Don Armstrong]

On Fri, 05 Feb 2016, Fedele Mantuano wrote:
> This is the syslog part after deattach dock station:
> http://pastebin.com/rfgSkpKS.
> When I deattach the docking station the PC do a logout.

This looks like an issue with the dock station hotplugging a PCI device
and it not being detected by X properly.

IIRC, one of the on-dock DP ports on the ThinkPad docks is the same as
the mini DP port on the laptop; that output should always work. So if
you only need a single output, that's a potential work-around.

Beyond that, I think this might be a missing feature in the version of
the xserver-xorg-video-intel driver that you have in Debian vs whatever
version you had installed in Ubuntu.

I'd compare the two versions, and possibly upgrade your jessie install
of xserver-xorg-video-intel to the one in backports, which is
2:2.99.917-2~bpo8+1, and significantly newer than 2:2.21.15-2+b2.

-- 
Don Armstrong  http://www.donarmstrong.com

Nothing is as inevitable as a mistake whose time has come.
 -- Tussman's Law

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

Yes Don,

I updaded xserver-xorg-video-intel with backports, but I will come back in
office tomorrow so I will try this change.

Thanks a lot.

On Mon, Feb 8, 2016 at 6:29 PM, Don Armstrong  wrote:

> On Fri, 05 Feb 2016, Fedele Mantuano wrote:
> > This is the syslog part after deattach dock station:
> > http://pastebin.com/rfgSkpKS.
> > When I deattach the docking station the PC do a logout.
>
> This looks like an issue with the dock station hotplugging a PCI device
> and it not being detected by X properly.
>
> IIRC, one of the on-dock DP ports on the ThinkPad docks is the same as
> the mini DP port on the laptop; that output should always work. So if
> you only need a single output, that's a potential work-around.
>
> Beyond that, I think this might be a missing feature in the version of
> the xserver-xorg-video-intel driver that you have in Debian vs whatever
> version you had installed in Ubuntu.
>
> I'd compare the two versions, and possibly upgrade your jessie install
> of xserver-xorg-video-intel to the one in backports, which is
> 2:2.99.917-2~bpo8+1, and significantly newer than 2:2.21.15-2+b2.
>
> --
> Don Armstrong  http://www.donarmstrong.com
>
> Nothing is as inevitable as a mistake whose time has come.
>  -- Tussman's Law
>
>


-- 
*Fedele Mantuano*

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Lisi Reisz]

On Saturday 06 February 2016 13:01:38 Fedele Mantuano wrote:
> I used Ubuntu but now I want use Debian because I want to get hands dirty
> working under the hood.
> I can't resolve my problem because the logs are not clear, so I ask you to
> help me.

Sounds fair enough to me!!  Trouble is, I don't know the answer to your 
problem.  If it is a driver that is in a very recent Ubuntu and not in 
Debian, then either it is very new or is proprietary, but it doesn't sound 
like it.  Have you an xorg.conf?  Perhaps you could put something in there. 

When I was using my Acer Aspire One with two screens, I found that it 
only "saw" the second if it was there when I booted up.  Perhaps this is 
something like that?

Lisi


>
> On Sat, Feb 6, 2016 at 12:24 PM, Chris Bannister
> 
> > wrote:
> >
> > On Sat, Feb 06, 2016 at 10:11:22AM +0800, Bret Busby wrote:
> > > On 04/02/2016, Fedele Mantuano  wrote:
> > > > Before Debian, I used Ubuntu 15.10 and I didn't have this issue.
> > >
> > > I think that that could be the simple solution.
> > >
> > > It took me two years to get an external monitor working on my Acer
> > > V3-772G, and, to get the system working overall; the simple solution
> > > was that Ubuntu was the only (non-MS) operating system that I could
> > > find that had the drivers for both the Intel CPU (an i7 of the Haskell
> > > architecture, I think, with its inbuilt graphics adapter), and the
> > > nVIDIA graphics thing, and I found UbuntuMATE had available, the
> > > interface that I want.
> >
> > There is this page:
> >
> > https://wiki.debian.org/InstallingDebianOn/Acer/Aspirev3-772G
> >
> > But true, if you want stuff to work OOTB then Ubuntu or Mint is the best
> > solution if you don't want to get your hands dirty working under the
> > hood.
> >
> > --
> > "If you're not careful, the newspapers will have you hating the people
> > who are being oppressed, and loving the people who are doing the
> > oppressing." --- Malcolm X

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

I used Ubuntu but now I want use Debian because I want to get hands dirty
working under the hood.
I can't resolve my problem because the logs are not clear, so I ask you to
help me.

On Sat, Feb 6, 2016 at 12:24 PM, Chris Bannister  wrote:

> On Sat, Feb 06, 2016 at 10:11:22AM +0800, Bret Busby wrote:
> > On 04/02/2016, Fedele Mantuano  wrote:
> >
> >
> >
> > > Before Debian, I used Ubuntu 15.10 and I didn't have this issue.
> > >
> >
> > I think that that could be the simple solution.
> >
> > It took me two years to get an external monitor working on my Acer
> > V3-772G, and, to get the system working overall; the simple solution
> > was that Ubuntu was the only (non-MS) operating system that I could
> > find that had the drivers for both the Intel CPU (an i7 of the Haskell
> > architecture, I think, with its inbuilt graphics adapter), and the
> > nVIDIA graphics thing, and I found UbuntuMATE had available, the
> > interface that I want.
>
> There is this page:
>
> https://wiki.debian.org/InstallingDebianOn/Acer/Aspirev3-772G
>
> But true, if you want stuff to work OOTB then Ubuntu or Mint is the best
> solution if you don't want to get your hands dirty working under the
> hood.
>
> --
> "If you're not careful, the newspapers will have you hating the people
> who are being oppressed, and loving the people who are doing the
> oppressing." --- Malcolm X
>
>


-- 
*Fedele Mantuano*

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Chris Bannister]

On Sat, Feb 06, 2016 at 10:11:22AM +0800, Bret Busby wrote:
> On 04/02/2016, Fedele Mantuano  wrote:
> 
> 
> 
> > Before Debian, I used Ubuntu 15.10 and I didn't have this issue.
> >
> 
> I think that that could be the simple solution.
> 
> It took me two years to get an external monitor working on my Acer
> V3-772G, and, to get the system working overall; the simple solution
> was that Ubuntu was the only (non-MS) operating system that I could
> find that had the drivers for both the Intel CPU (an i7 of the Haskell
> architecture, I think, with its inbuilt graphics adapter), and the
> nVIDIA graphics thing, and I found UbuntuMATE had available, the
> interface that I want.

There is this page:

https://wiki.debian.org/InstallingDebianOn/Acer/Aspirev3-772G

But true, if you want stuff to work OOTB then Ubuntu or Mint is the best
solution if you don't want to get your hands dirty working under the
hood.

-- 
"If you're not careful, the newspapers will have you hating the people
who are being oppressed, and loving the people who are doing the 
oppressing." --- Malcolm X

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

This is the syslog part after deattach dock station:
http://pastebin.com/rfgSkpKS.
When I deattach the docking station the PC do a logout.

On Wed, Feb 3, 2016 at 10:17 PM, Fedele Mantuano 
wrote:

> I'm guessing that the computer is running when you put it in the dock and
>> that if you started it while docked you'd get the second output.
>
> Yes my PC running while docked it. I can't see the second monitor.
>
> Can you do an lspci before and after docking and compare the difference?
>
> 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
> Processor DRAM Controller (rev 06)
> 00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core
> Processor Integrated Graphics Controller (rev 06)
> 00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
> Processor HD Audio Controller (rev 06)
> 00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
> Family USB xHCI (rev 05)
> 00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series
> Chipset Family MEI Controller #1 (rev 04)
> 00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V
> (rev 05)
> 00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
> Family USB EHCI #2 (rev 05)
> 00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High
> Definition Audio Controller (rev 05)
> 00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
> PCI Express Root Port #1 (rev d5)
> 00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
> PCI Express Root Port #2 (rev d5)
> 00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
> PCI Express Root Port #3 (rev d5)
> 00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
> PCI Express Root Port #5 (rev d5)
> 00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
> Family USB EHCI #1 (rev 05)
> 00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
> 00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset
> Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
> 00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus
> Controller (rev 05)
> 02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
> 08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227
> PCI Express Card Reader (rev 01)
>
> My PC is a *THINKPAD L540*. I tried with Fn F7, but works only after
> restart of gdm.service. When I deattach the docking station the PC do a
> logout (this is another issue).
>
> Before Debian, I used Ubuntu 15.10 and I didn't have this issue.
>
> This is my dmesg command:
> http://pastebin.com/0ccZGRKJ
>
> Thanks a lot for support
>
>
>
> On Wed, Feb 3, 2016 at 4:21 PM, Joshua M. Boniface 
> wrote:
>
>> I'm not sure exactly what laptop model you're using, but in my case,
>> after connecting my T450s to the dock, sometimes I have to press the
>> "monitor select" button (F7) to get the second monitor to display. It seems
>> to default randomly to single-monitor (laptop) mode. However I've not
>> checked if it shows up in xrandr in this state as the workaround for me is
>> fairly simple.
>>
>> --
>> Joshua M. Boniface
>> Linux System Administrator
>> Sigmentation fault. Core dumped.
>>
>> On 03/02/16 04:27 AM, Fedele Mantuano wrote:
>> > Hi,
>> >
>> > I'm debian jessie user. I can detect external monitor only after
>> restart of gdm.service. Can you help me?
>> >
>> > xrandrcommand before restart gdm.service:
>> >
>> > Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
>> > eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis
>> y axis) 344mm x 194mm
>> >1366x768  60.00*+
>> >1360x768  59.8059.96
>> >1024x768  60.00
>> >800x600   60.3256.25
>> >640x480   59.94
>> > VGA1 disconnected (normal left inverted right x axis y axis)
>> > DP1 disconnected (normal left inverted right x axis y axis)
>> > HDMI1 disconnected (normal left inverted right x axis y axis)
>> > DP2 disconnected (normal left inverted right x axis y axis)
>> > HDMI2 disconnected (normal left inverted right x axis y axis)
>> >
>> > xrandr command after restart gdm.service:
>> >
>> > Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
>> > eDP1 connected (normal left inverted right x axis y axis)
>> >1366x768  60.00 +
>> >1360x768  59.8059.96
>> >1024x768  60.00
>> >800x600   60.3256.25
>> >640x480   59.94
>> > VGA1 disconnected (normal left inverted right x axis y axis)
>> > DP1 disconnected (normal left inverted right x axis y axis)
>> > HDMI1 disconnected (normal left inverted right x axis y axis)
>> > DP2 disconnected (normal left inverted right x axis y axis)
>> > HDMI2 disconnected (normal left inverted right x axis y axis)
>> > DP3 disconnected (normal left inverted right x axis y axis)
>> > DP4 

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Bret Busby]

On 04/02/2016, Fedele Mantuano  wrote:



> Before Debian, I used Ubuntu 15.10 and I didn't have this issue.
>

I think that that could be the simple solution.

It took me two years to get an external monitor working on my Acer
V3-772G, and, to get the system working overall; the simple solution
was that Ubuntu was the only (non-MS) operating system that I could
find that had the drivers for both the Intel CPU (an i7 of the Haskell
architecture, I think, with its inbuilt graphics adapter), and the
nVIDIA graphics thing, and I found UbuntuMATE had available, the
interface that I want.

The only other (non-MS) operating system that I could find, that had a
driver for the CPU, was dragonflyBSD, but that did not have a driver
for the nVIDIA graphics thing, available.

So I left using Debian, and switch the Linux OS on my computers, to
UbuntuMATE 15.10, and and now using UbuntuMATE 15.10 (soon, hopefully,
to be upgraded to UbuntuMATE 16.04 LTS).

So, if Ubuntu gets your system working as you want, and, Debian does
not, then I suggest simply switching to UbuntuMATE 15.10, and
upgrading to 16.04, when it becomes available.

-- 

Bret Busby
Armadale
West Australia

..

"So once you do know what the question actually is,
 you'll know what the answer means."
- Deep Thought,
 Chapter 28 of Book 1 of
 "The Hitchhiker's Guide to the Galaxy:
 A Trilogy In Four Parts",
 written by Douglas Adams,
 published by Pan Books, 1992

Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

Hi,

I'm debian jessie user. I can detect external monitor only after restart of
gdm.service. Can you help me?

xrandr command before restart gdm.service:

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y
axis) 344mm x 194mm
   1366x768  60.00*+
   1360x768  59.8059.96
   1024x768  60.00
   800x600   60.3256.25
   640x480   59.94
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)

xrandr command after restart gdm.service:

Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
eDP1 connected (normal left inverted right x axis y axis)
   1366x768  60.00 +
   1360x768  59.8059.96
   1024x768  60.00
   800x600   60.3256.25
   640x480   59.94
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
DP4 disconnected (normal left inverted right x axis y axis)
DP5 connected primary 1600x900+0+0 (normal left inverted right x axis y
axis) 432mm x 240mm
   1600x900  60.00 +  75.00*
   1280x1024 75.0270.0060.02
   1152x864  75.00
   1024x768  75.0870.0760.00
   832x624   74.55
   800x600   72.1975.0060.3256.25
   640x480   75.0072.8160.00
   720x400   70.08

My lspci output:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series
Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V
(rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High
Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #3 (rev d5)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset
Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus
Controller (rev 05)
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227
PCI Express Card Reader (rev 01)


Regards
-- 
*Fedele Mantuano*

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Fedele Mantuano]

>
> I'm guessing that the computer is running when you put it in the dock and
> that if you started it while docked you'd get the second output.

Yes my PC running while docked it. I can't see the second monitor.

Can you do an lspci before and after docking and compare the difference?

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series
Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I217-V
(rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High
Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #3 (rev d5)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family
PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset
Family USB EHCI #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset
Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus
Controller (rev 05)
02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227
PCI Express Card Reader (rev 01)

My PC is a *THINKPAD L540*. I tried with Fn F7, but works only after
restart of gdm.service. When I deattach the docking station the PC do a
logout (this is another issue).

Before Debian, I used Ubuntu 15.10 and I didn't have this issue.

This is my dmesg command:
http://pastebin.com/0ccZGRKJ

Thanks a lot for support



On Wed, Feb 3, 2016 at 4:21 PM, Joshua M. Boniface 
wrote:

> I'm not sure exactly what laptop model you're using, but in my case, after
> connecting my T450s to the dock, sometimes I have to press the "monitor
> select" button (F7) to get the second monitor to display. It seems to
> default randomly to single-monitor (laptop) mode. However I've not checked
> if it shows up in xrandr in this state as the workaround for me is fairly
> simple.
>
> --
> Joshua M. Boniface
> Linux System Administrator
> Sigmentation fault. Core dumped.
>
> On 03/02/16 04:27 AM, Fedele Mantuano wrote:
> > Hi,
> >
> > I'm debian jessie user. I can detect external monitor only after restart
> of gdm.service. Can you help me?
> >
> > xrandrcommand before restart gdm.service:
> >
> > Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
> > eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis y
> axis) 344mm x 194mm
> >1366x768  60.00*+
> >1360x768  59.8059.96
> >1024x768  60.00
> >800x600   60.3256.25
> >640x480   59.94
> > VGA1 disconnected (normal left inverted right x axis y axis)
> > DP1 disconnected (normal left inverted right x axis y axis)
> > HDMI1 disconnected (normal left inverted right x axis y axis)
> > DP2 disconnected (normal left inverted right x axis y axis)
> > HDMI2 disconnected (normal left inverted right x axis y axis)
> >
> > xrandr command after restart gdm.service:
> >
> > Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
> > eDP1 connected (normal left inverted right x axis y axis)
> >1366x768  60.00 +
> >1360x768  59.8059.96
> >1024x768  60.00
> >800x600   60.3256.25
> >640x480   59.94
> > VGA1 disconnected (normal left inverted right x axis y axis)
> > DP1 disconnected (normal left inverted right x axis y axis)
> > HDMI1 disconnected (normal left inverted right x axis y axis)
> > DP2 disconnected (normal left inverted right x axis y axis)
> > HDMI2 disconnected (normal left inverted right x axis y axis)
> > DP3 disconnected (normal left inverted right x axis y axis)
> > DP4 disconnected (normal left inverted right x axis y axis)
> > DP5 connected primary 1600x900+0+0 (normal left inverted right x axis y
> axis) 432mm x 240mm
> >1600x900  60.00 +  75.00*
> >1280x1024 75.0270.0060.02
> >1152x864  75.00
> >1024x768  75.0870.0760.00
> >832x624   74.55
> >800x600   72.1975.00

Re: Problem to detect external monitor on Lenovo ThinkPad Dock

[Gary Dale]

On 03/02/16 04:27 AM, Fedele Mantuano wrote:

Hi,

I'm debian jessie user. I can detect external monitor only after 
restart of gdm.service. Can you help me?


xrandrcommand before restart gdm.service:

Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
eDP1 connected primary 1366x768+0+0 (normal left inverted right x axis 
y axis) 344mm x 194mm

   1366x768  60.00*+
   1360x768  59.8059.96
   1024x768  60.00
   800x600   60.3256.25
   640x480   59.94
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)

xrandr command after restart gdm.service:

Screen 0: minimum 320 x 200, current 1600 x 900, maximum 8192 x 8192
eDP1 connected (normal left inverted right x axis y axis)
   1366x76860.00 +
   1360x76859.8059.96
   1024x76860.00
   800x600   60.3256.25
   640x480   59.94
VGA1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
DP4 disconnected (normal left inverted right x axis y axis)
DP5 connected primary 1600x900+0+0 (normal left inverted right x axis 
y axis) 432mm x 240mm

   1600x90060.00 +  75.00*
   1280x1024   75.0270.0060.02
   1152x86475.00
   1024x76875.0870.0760.00
   832x624   74.55
   800x600   72.1975.0060.3256.25
   640x480   75.0072.8160.00
   720x400   70.08

My lspcioutput:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core 
Processor DRAM Controller (rev 06)
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core 
Processor Integrated Graphics Controller (rev 06)
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core 
Processor HD Audio Controller (rev 06)
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset 
Family USB xHCI (rev 05)
00:16.0 Communication controller: Intel Corporation 8 Series/C220 
Series Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection 
I217-V (rev 05)
00:1a.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset 
Family USB EHCI #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset 
High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset 
Family PCI Express Root Port #1 (rev d5)
00:1c.1 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset 
Family PCI Express Root Port #2 (rev d5)
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset 
Family PCI Express Root Port #3 (rev d5)
00:1c.4 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset 
Family PCI Express Root Port #5 (rev d5)
00:1d.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset 
Family USB EHCI #1 (rev 05)

00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series 
Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family 
SMBus Controller (rev 05)

02:00.0 Network controller: Intel Corporation Wireless 7260 (rev 6b)
08:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. 
RTS5227 PCI Express Card Reader (rev 01)



Regards
--
/Fedele Mantuano/


I'm guessing that the computer is running when you put it in the dock 
and that if you started it while docked you'd get the second output.


Can you do an lspci before and after docking and compare the difference?