Using a second PC as an external monitor?

luckyrick

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So, I have a laptop and a Lenovo Ideacentre, which is a standalone desktop.

10x0707ioub252core-1278486611.jpg




The laptop screen is very small. However, the laptop's specs are waaay better than the Ideacentre.



How can I use the Ideacentre's monitor as a display for my laptop? :confused:

Should I buy a HDMI-to-HDMI cable?
 

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Windows 7 Home Premium 64bit
If the monitor on the ideacentre has an input then you should be able to do that. You could use a VGA, DVI, or HDMI connector depending on what is available. If it does not have additional ports for input then you won't be able to do this.

The HDMI receptacle on the PC portion is for output.

I have 2 PCs connected to one monitor here. I can switch between them with an input button on the monitor. That would also be very important to have. Standard PC monitors have these. I'm not sure about All-In-Ones.
 

My Computer My Computer

At a glance

Windows 7 64 Bit Home Premium SP1i7-3820GSkill F3-14900CL9Q - 16GBEVGA GeForce GTX660 - Driver 352.86
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built - Jan 2013
OS
Windows 7 64 Bit Home Premium SP1
CPU
i7-3820
Motherboard
Asus P9X79-PRO - Bios 4608
Memory
GSkill F3-14900CL9Q - 16GB
Graphics Card(s)
EVGA GeForce GTX660 - Driver 352.86
Sound Card
On board Realtek ALC898
Monitor(s) Displays
Acer S271HL
Screen Resolution
1920 x 1080
Hard Drives
#1- Samsung 840 Pro Series
#2- Western Digital WD1002FAEX Sata3 Black
#3- Western Digital WD1002FAEX Sata3 Black
PSU
Corsair CMPSU-850TX-V2 - 850 watt (by Seasonic)
Case
Corsair Obsidian 550D
Cooling
Standard 3 120mm case fans, Cooler Master Hyper 212 EVO
Keyboard
MS KC-0405
Mouse
Intellimouse 5-button
Internet Speed
56 Mbits/Sec (on a good day)
Antivirus
Avast & Malwarebytes
Browser
Firefox
Other Info
Asus DVD - DRW-24B1ST 24X
In case you don't have any input in that ideacentre, you can install some softwares (a free one, a paid one with more features) that disguise themselves as a video card and pass the screen data through LAN, so it will totally suck for decent games but will be fine for everything else (well maybe HD movies may suffer, don't know, you can try the free one and see).
 

My Computer My Computer

At a glance

Win 7 Pro 64-bit 7601AMD Phenom 9650 QuadCore, revision DR-B35 GB yes I run 2x 2GB and 1x 1GB, different b...NVIDIA GeForce 9800 GT 512 Mb, unknown manufa...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom built
OS
Win 7 Pro 64-bit 7601
CPU
AMD Phenom 9650 QuadCore, revision DR-B3
Motherboard
ASUS M4A78
Memory
5 GB yes I run 2x 2GB and 1x 1GB, different brand, spank me.
Graphics Card(s)
NVIDIA GeForce 9800 GT 512 Mb, unknown manufacturer.
Sound Card
Crappy Realtek Integrated Audio
Monitor(s) Displays
Fujitsu Siemens P19-3P
Screen Resolution
1280 x 1024 x 32 bits @ 60 Hz Oh yeah, 4:3 rocks!
Hard Drives
(1) MAXTOR S TM3320613AS SATA Disk Device (2) STM35004 18AS SATA Disk Device (3) TOSHIBA USB 2.5"-HDD
PSU
whatever, around 450w
Case
Scavenged from old company PC, 10+ years old
Cooling
CPU fan, GPU fan, case fan, nothing fancy
Keyboard
Microsoft, PS/2, white.
Mouse
Optical, logitec.
Internet Speed
effective max speeds: 70-ish kB/s down 30-ish kB/s up
Antivirus
Avira, free edition.
Browser
Firefox with FXChrome to make it look like Google Chrome :P
Other Info
Was discarded by previous owner due to "horrible performance".
Was running Win Xp from a IDE drive. Yeah. Was a pain.
SATA II drive and Win7 and it zips away! Yay!
In case you don't have any input in that ideacentre, you can install some softwares (a free one, a paid one with more features) that disguise themselves as a video card and pass the screen data through LAN, so it will totally suck for decent games but will be fine for everything else (well maybe HD movies may suffer, don't know, you can try the free one and see).


Thanks. Both computers have HDMI ports.

Is any additional software required?
 

My Computer My Computer

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Windows 7 Home Premium 64bit
OS
Windows 7 Home Premium 64bit
You shouldn't require any software, just hook up the hdmi cable to the screen set the input source and configure the 2nd screen showing now on the lappy and dial in the settings till you're happy !
 

My Computer My Computer

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Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS
If the monitor on the ideacentre has an input then you should be able to do that. You could use a VGA, DVI, or HDMI connector depending on what is available. If it does not have additional ports for input then you won't be able to do this.

The HDMI receptacle on the PC portion is for output.

I have 2 PCs connected to one monitor here. I can switch between them with an input button on the monitor. That would also be very important to have. Standard PC monitors have these. I'm not sure about All-In-Ones.


Cool. But the problem is that since the Ideacentre is an all-in-one PC, my laptop monitor may end up displaying my Ideacentre desktop, but I want it to be the other way round.
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64bit
OS
Windows 7 Home Premium 64bit
i think there would be some problems
first check if the HDMI is an input port on lenovo, the hdmi port on your lenovo may be an output port the same as HDMI port on your laptop.can you take a photo from the back panel of your lenovo here?
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64core i7.
OS
Windows 7 Ultimate x64
CPU
core i7.
If you have an HDMI cable give it a go and report back what happens.
 

My Computer My Computer

At a glance

Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS
You will probably not be able to use the HDMI port on the computer section to do what you want.


Capture.PNG
 

My Computer My Computer

At a glance

Windows 7 64 Bit Home Premium SP1i7-3820GSkill F3-14900CL9Q - 16GBEVGA GeForce GTX660 - Driver 352.86
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Home Built - Jan 2013
OS
Windows 7 64 Bit Home Premium SP1
CPU
i7-3820
Motherboard
Asus P9X79-PRO - Bios 4608
Memory
GSkill F3-14900CL9Q - 16GB
Graphics Card(s)
EVGA GeForce GTX660 - Driver 352.86
Sound Card
On board Realtek ALC898
Monitor(s) Displays
Acer S271HL
Screen Resolution
1920 x 1080
Hard Drives
#1- Samsung 840 Pro Series
#2- Western Digital WD1002FAEX Sata3 Black
#3- Western Digital WD1002FAEX Sata3 Black
PSU
Corsair CMPSU-850TX-V2 - 850 watt (by Seasonic)
Case
Corsair Obsidian 550D
Cooling
Standard 3 120mm case fans, Cooler Master Hyper 212 EVO
Keyboard
MS KC-0405
Mouse
Intellimouse 5-button
Internet Speed
56 Mbits/Sec (on a good day)
Antivirus
Avast & Malwarebytes
Browser
Firefox
Other Info
Asus DVD - DRW-24B1ST 24X
i think there would be some problems
first check if the HDMI is an input port on lenovo, the hdmi port on your lenovo may be an output port the same as HDMI port on your laptop.can you take a photo from the back panel of your lenovo here?

sure.

Lenovo-IdeaCentre-A300-3.jpg
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64bit
OS
Windows 7 Home Premium 64bit
Something tells me the lappy isn't going to control the lenovo without software.
 

My Computer My Computer

At a glance

Windows 7 Ultimate 64i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 ...32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133XFX Radeon 7870 2GB DDR5
Computer type
PC/Desktop
Computer Manufacturer/Model Number
A blend of brains, brawn and dumb luck.
OS
Windows 7 Ultimate 64
CPU
i7 3770k OC'd 4.6 @ 1.17v, also FX 8120 & i5 miniITX
Motherboard
MSI P67A-GD80 b3
Memory
32 gb G.Skill Sniper DDR3 10-12-12-31 @ 2133
Graphics Card(s)
XFX Radeon 7870 2GB DDR5
Sound Card
Sound Blaster Z Series Card
Monitor(s) Displays
(2) LG LED 23" 1920 x 1080 2ms Monitors via mini d-port
Screen Resolution
1680 X 1050 p
Hard Drives
Samsung 256 gb 830 SSD sata III
(1) 1 tb WD Black
(2) 1 tb Hitachi deskmates/sata II
(2) 1 tb WD green/sata II
(2) 3 tb Seagate Barracuda
(1) 120 gb OCZ Vertex SS
(1) Drobo 5N w/5 Seagate 3tb
PSU
EVGA modular 1000G2 80% gold rating & APC 1200 RS
Case
CoolerMaster Storm Styker
Cooling
7 case fans 140mm & 120mm, NZXT Kraken X60
Keyboard
(2) Logitech Illuminated Keyboards (1) usb (1) wireless
Mouse
Logitech G700 & T-BC21 - nano nx for the laptop
Internet Speed
Basic 120mbps down
Antivirus
Trend Micro Titanium Max Security & Malwarebytes Premium
Browser
Chrome and IE 10
Other Info
5 Noctua case fans + 3 Noctua in p/p on NZXT cooler
Integrated hot swap drive bays for 2.5" Drives
(2) Lite-on dvd/cd/Blu Ray optical 22X
Integrated fan controller and led on/off
HP Officejet Pro 8630 all-n-one
Hot-swappable 3.5" hard drive bay
Netgear Nighthawk router
Asus USB 3 & sata 6 PCIe card
Vantec IDE to sata adptr./Ultra sata adptr
Lenovo L420 i5 lappy with m sata
Drobo 5N advanced NAS
i think there would be some problems
first check if the HDMI is an input port on lenovo, the hdmi port on your lenovo may be an output port the same as HDMI port on your laptop.can you take a photo from the back panel of your lenovo here?

sure.

Lenovo-IdeaCentre-A300-3.jpg
i see, there are two ports here for HDMI, if i'm right and one is not usb3, then you can plug in your laptop to the lenovo monitor
and should say that you dn't need an expensive one, i think you can find one with 3-4 bucks
if 1% it doesnt work, use your network to do so...
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64core i7.
OS
Windows 7 Ultimate x64
CPU
core i7.
In case you don't have any input in that ideacentre, you can install some softwares (a free one, a paid one with more features) that disguise themselves as a video card and pass the screen data through LAN, so it will totally suck for decent games but will be fine for everything else (well maybe HD movies may suffer, don't know, you can try the free one and see).
Thanks. Both computers have HDMI ports. Is any additional software required?
Both computer's HDMI ports are output-only so are irrelevant in this situation. You cannot use them to connect the two devices, they can go only to a screen or a TV (<-- recommended choice), because those have input-only HDMI ports.

the software I linked uses the ethernet network to move video data around and have either of the two become a screen for the other.
 

My Computer My Computer

At a glance

Win 7 Pro 64-bit 7601AMD Phenom 9650 QuadCore, revision DR-B35 GB yes I run 2x 2GB and 1x 1GB, different b...NVIDIA GeForce 9800 GT 512 Mb, unknown manufa...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom built
OS
Win 7 Pro 64-bit 7601
CPU
AMD Phenom 9650 QuadCore, revision DR-B3
Motherboard
ASUS M4A78
Memory
5 GB yes I run 2x 2GB and 1x 1GB, different brand, spank me.
Graphics Card(s)
NVIDIA GeForce 9800 GT 512 Mb, unknown manufacturer.
Sound Card
Crappy Realtek Integrated Audio
Monitor(s) Displays
Fujitsu Siemens P19-3P
Screen Resolution
1280 x 1024 x 32 bits @ 60 Hz Oh yeah, 4:3 rocks!
Hard Drives
(1) MAXTOR S TM3320613AS SATA Disk Device (2) STM35004 18AS SATA Disk Device (3) TOSHIBA USB 2.5"-HDD
PSU
whatever, around 450w
Case
Scavenged from old company PC, 10+ years old
Cooling
CPU fan, GPU fan, case fan, nothing fancy
Keyboard
Microsoft, PS/2, white.
Mouse
Optical, logitec.
Internet Speed
effective max speeds: 70-ish kB/s down 30-ish kB/s up
Antivirus
Avira, free edition.
Browser
Firefox with FXChrome to make it look like Google Chrome :P
Other Info
Was discarded by previous owner due to "horrible performance".
Was running Win Xp from a IDE drive. Yeah. Was a pain.
SATA II drive and Win7 and it zips away! Yay!
If you look at the photo above, at the right end of there is a tiny port, with this symbol:

64818568.png
 

My Computer My Computer

At a glance

Windows 7 Home Premium 64bit
OS
Windows 7 Home Premium 64bit

My Computer My Computer

At a glance

Windows 7 Ultimate x86Intel Pentium D 925 @ 3.00GHz1GB DDR2 667MHzOverclocked Asus ATI Radeon X1600 Pro 512MB
Computer Manufacturer/Model Number
Packard Bell iMedia 2218 -- Has Been Running For Almost 7 Years!
OS
Windows 7 Ultimate x86
CPU
Intel Pentium D 925 @ 3.00GHz
Motherboard
Socket 775 MCP73VT-PM
Memory
1GB DDR2 667MHz
Graphics Card(s)
Overclocked Asus ATI Radeon X1600 Pro 512MB
Sound Card
Sound Blaster Audigy 570
Monitor(s) Displays
19" LCD Monitor; MW19E-AAA
Screen Resolution
1440 x 900
Hard Drives
500gb 7200rpm (Windows 7) ---
160gb 7200rpm (Backup) ---
1TB Iomega External Drive (7200rpm)
PSU
250w Packard Bell Standard
Case
Packard Bell standard
Cooling
Intel Socket 775 Air Cooler
Keyboard
Wired PS/2 Keyboard
Mouse
Dell Wireless USB Mouse
Internet Speed
Wireles --- Download - 6.63 Mbps Upload - 0.38 Mbps
Other Info
Currently Planning To Build New Computer --- Also Got A Samsung Galaxy Ace II (Plays All Games You Throw At It)
Correct me if im wrong but that might be a mini display port or firewire port,
 

My Computer My Computer

At a glance

Windows 7 Ultimate x86Intel Pentium D 925 @ 3.00GHz1GB DDR2 667MHzOverclocked Asus ATI Radeon X1600 Pro 512MB
Computer Manufacturer/Model Number
Packard Bell iMedia 2218 -- Has Been Running For Almost 7 Years!
OS
Windows 7 Ultimate x86
CPU
Intel Pentium D 925 @ 3.00GHz
Motherboard
Socket 775 MCP73VT-PM
Memory
1GB DDR2 667MHz
Graphics Card(s)
Overclocked Asus ATI Radeon X1600 Pro 512MB
Sound Card
Sound Blaster Audigy 570
Monitor(s) Displays
19" LCD Monitor; MW19E-AAA
Screen Resolution
1440 x 900
Hard Drives
500gb 7200rpm (Windows 7) ---
160gb 7200rpm (Backup) ---
1TB Iomega External Drive (7200rpm)
PSU
250w Packard Bell Standard
Case
Packard Bell standard
Cooling
Intel Socket 775 Air Cooler
Keyboard
Wired PS/2 Keyboard
Mouse
Dell Wireless USB Mouse
Internet Speed
Wireles --- Download - 6.63 Mbps Upload - 0.38 Mbps
Other Info
Currently Planning To Build New Computer --- Also Got A Samsung Galaxy Ace II (Plays All Games You Throw At It)
But before anything.... Just try and see if it works
 

My Computer My Computer

At a glance

Windows 7 Ultimate x86Intel Pentium D 925 @ 3.00GHz1GB DDR2 667MHzOverclocked Asus ATI Radeon X1600 Pro 512MB
Computer Manufacturer/Model Number
Packard Bell iMedia 2218 -- Has Been Running For Almost 7 Years!
OS
Windows 7 Ultimate x86
CPU
Intel Pentium D 925 @ 3.00GHz
Motherboard
Socket 775 MCP73VT-PM
Memory
1GB DDR2 667MHz
Graphics Card(s)
Overclocked Asus ATI Radeon X1600 Pro 512MB
Sound Card
Sound Blaster Audigy 570
Monitor(s) Displays
19" LCD Monitor; MW19E-AAA
Screen Resolution
1440 x 900
Hard Drives
500gb 7200rpm (Windows 7) ---
160gb 7200rpm (Backup) ---
1TB Iomega External Drive (7200rpm)
PSU
250w Packard Bell Standard
Case
Packard Bell standard
Cooling
Intel Socket 775 Air Cooler
Keyboard
Wired PS/2 Keyboard
Mouse
Dell Wireless USB Mouse
Internet Speed
Wireles --- Download - 6.63 Mbps Upload - 0.38 Mbps
Other Info
Currently Planning To Build New Computer --- Also Got A Samsung Galaxy Ace II (Plays All Games You Throw At It)
If you look at the photo above, at the right end of there is a tiny port
I don't recognize that symbol. Still, I might be wrong after all. :sarc:After a quick google-image search, I found that some models of that device do have a HDMI-input port, that will allow it to become a screen for your laptop. It is a very very rare feature.

Please state what is the model ("Ideacentre" is a bit generic as half of Leonovo products are Ideacentre) and we can find out for sure (by fetching the manual or a reputable review of it) before you waste money on a HDMI cable. The one I linked is a Ideacentre A300 and looks like yours, but they may have made other models with the same looks.
 

My Computer My Computer

At a glance

Win 7 Pro 64-bit 7601AMD Phenom 9650 QuadCore, revision DR-B35 GB yes I run 2x 2GB and 1x 1GB, different b...NVIDIA GeForce 9800 GT 512 Mb, unknown manufa...
Computer type
PC/Desktop
Computer Manufacturer/Model Number
custom built
OS
Win 7 Pro 64-bit 7601
CPU
AMD Phenom 9650 QuadCore, revision DR-B3
Motherboard
ASUS M4A78
Memory
5 GB yes I run 2x 2GB and 1x 1GB, different brand, spank me.
Graphics Card(s)
NVIDIA GeForce 9800 GT 512 Mb, unknown manufacturer.
Sound Card
Crappy Realtek Integrated Audio
Monitor(s) Displays
Fujitsu Siemens P19-3P
Screen Resolution
1280 x 1024 x 32 bits @ 60 Hz Oh yeah, 4:3 rocks!
Hard Drives
(1) MAXTOR S TM3320613AS SATA Disk Device (2) STM35004 18AS SATA Disk Device (3) TOSHIBA USB 2.5"-HDD
PSU
whatever, around 450w
Case
Scavenged from old company PC, 10+ years old
Cooling
CPU fan, GPU fan, case fan, nothing fancy
Keyboard
Microsoft, PS/2, white.
Mouse
Optical, logitec.
Internet Speed
effective max speeds: 70-ish kB/s down 30-ish kB/s up
Antivirus
Avira, free edition.
Browser
Firefox with FXChrome to make it look like Google Chrome :P
Other Info
Was discarded by previous owner due to "horrible performance".
Was running Win Xp from a IDE drive. Yeah. Was a pain.
SATA II drive and Win7 and it zips away! Yay!
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