I have a rather strange problem with a monitor connected via HDMI. The problem appeared a few months ago. Previously it did not occur in the
same configuration. I have a computer with Windows 10 and an NVidia
Quadro K620 card connected to the monitor via an HDMI switch, to which,
in addition to the computer, a terrestrial TV tuner and another computer
are connected. The switch has three inputs and one HDMI output (which is
goes directly to the monitor). The input on which there is a signal is automatically selected as active. If there are more active signals, you
can select the input with the button.
It worked very well for several years. And suddenly it turned out that
if I turn on the TV tuner for a moment while using Windows and switch
the image to this tuner, and after this switch back to the computer, I
have no image from the computer. I can switch back to the tuner and it
works, but for the computer the monitor says: "No signal".
I thought the switch was broken and disconnected everything and
connected the PC directly to the monitor - no signal. I suspected that
the entire computer is broken. I reset it and a welcome image appeared
with several BIOS messages and everything seemed to be working fine. But after a while, when Windows started loading, the image went out again.
No signal. I tried many times (this time without any switches), with the
same result. I connected remotely to the computer - the system worked normally, I did not find any error messages. Finally, I decided to run
Ubuntu Linux (from an external flash drive). It started - and the image appeared on the monitor. I returned to Windows - the image was suddenly
on as if nothing had happened.
Unfortunately, this turned out to be a recurring problem. Since then,
every momentary switch of the HDMI input, or even momentary
disconnection of the cable coming from the computer and reconnection,
causes the HD image from Windows to disappear. But this only applies to
HD image; text mode works (BIOS inital messages) and low-resolution
graphics too (spinning dots at the beginning of Windows loading). The
only thing that helps is starting and closing Ubuntu. I have already
bought another HDMI switch, unfortunately the effect is the same. To
avoid problems with the image, before switching the HDMI signal or disconnecting the cable from the computer I have to completely turn the computer off and turn on only after completely reconnecting the monitor. Otherwise the image disappears and I have to start Ubuntu and then
Windows every time.
This is quite inconvenient, because I cannot switch to another computer
or to the TV even for a moment. It looks more like a Windows problem
that switches the card to some strange mode and then can't initialize
the card properly. But I'm not sure and I don't know what to do about
it. Maybe someone knows?
P.
I have a rather strange problem with a monitor connected via HDMI. The problem appeared a few months ago. Previously it did not occur in the same configuration. I have a computer with Windows 10 and an NVidia Quadro K620 card connected to the monitor via an HDMI switch, to which, in addition to the computer, a terrestrial TV tuner and another computer are connected. The switch has three inputs and one HDMI output (which is goes directly to the monitor). The input on which there is a signal is automatically selected as active. If there are more active signals, you can select the input with the button.
It worked very well for several years. And suddenly it turned out that if I turn on the TV tuner for a moment while using Windows and switch the image to this tuner, and after this switch back to the computer, I have no image from the computer. I can switch back to the tuner and it works, but for the computer the monitor says: "No signal".
I thought the switch was broken and disconnected everything and connected the PC directly to the monitor - no signal. I suspected that the entire computer is broken. I reset it and a welcome image appeared with several BIOS messages and everything seemed to be working fine. But after a while, when Windows started loading, the image went out again. No signal. I tried many times (this time without any switches), with the same result. I connected remotely to the computer - the system worked normally, I did not find any error messages. Finally, I decided to run Ubuntu Linux (from an external flash drive). It started - and the image appeared on the monitor. I returned to Windows - the image was suddenly on as if nothing had happened.
Unfortunately, this turned out to be a recurring problem. Since then, every momentary switch of the HDMI input, or even momentary disconnection of the cable coming from the computer and reconnection, causes the HD image from Windows to disappear. But this only applies to HD image; text mode works (BIOS inital messages) and low-resolution graphics too (spinning dots at the beginning of Windows loading). The only thing that helps is starting and closing Ubuntu. I have already bought another HDMI switch, unfortunately the effect is the same. To avoid problems with the image, before switching the HDMI signal or disconnecting the cable from the computer I have to completely turn the computer off and turn on only after completely reconnecting the monitor. Otherwise the image disappears and I have to start Ubuntu and then Windows every time.
This is quite inconvenient, because I cannot switch to another computer or to the TV even for a moment. It looks more like a Windows problem that switches the card to some strange mode and then can't initialize the card properly. But I'm not sure and I don't know what to do about it. Maybe someone knows?
P.
Try manual updates of all drivers in the loop; manufacturers' websites.
Oh, and a suggestion based on problems I've defeated; plug and unplug all the HDMI connectors used.
My monitor appears to look for an analogue signal before a digital signal, if I switch on the tv
tuner before the computer it will not then connect to the computer later.
I have a rather strange problem with a monitor connected via HDMI. The problem appeared a few months ago. Previously it did not occur in the same configuration. I have a computer with Windows 10 and an NVidia Quadro K620 card connected to the monitorvia an HDMI switch, to which, in addition to the computer, a terrestrial TV tuner and another computer are connected. The switch has three inputs and one HDMI output (which is goes directly to the monitor). The input on which there is a signal is
It worked very well for several years. And suddenly it turned out that if I turn on the TV tuner for a moment while using Windows and switch the image to this tuner, and after this switch back to the computer, I have no image from the computer. I canswitch back to the tuner and it works, but for the computer the monitor says: "No signal".
I thought the switch was broken and disconnected everything and connected the PC directly to the monitor - no signal. I suspected that the entire computer is broken. I reset it and a welcome image appeared with several BIOS messages and everythingseemed to be working fine. But after a while, when Windows started loading, the image went out again. No signal. I tried many times (this time without any switches), with the same result. I connected remotely to the computer - the system worked normally,
Unfortunately, this turned out to be a recurring problem. Since then, every momentary switch of the HDMI input, or even momentary disconnection of the cable coming from the computer and reconnection, causes the HD image from Windows to disappear. Butthis only applies to HD image; text mode works (BIOS inital messages) and low-resolution graphics too (spinning dots at the beginning of Windows loading). The only thing that helps is starting and closing Ubuntu. I have already bought another HDMI switch,
This is quite inconvenient, because I cannot switch to another computer or to the TV even for a moment. It looks more like a Windows problem that switches the card to some strange mode and then can't initialize the card properly. But I'm not sure and Idon't know what to do about it. Maybe someone knows?
P.
This is quite inconvenient, because I cannot switch to another computer
or to the TV even for a moment. It looks more like a Windows problem
that switches the card to some strange mode and then can't initialize
the card properly. But I'm not sure and I don't know what to do about
it. Maybe someone knows?
I managed to solve the problem, at least temporarily. I downgraded theThere are ways of stopping Microsoft from messing with a specific device driver. Here is one method but I believe there are others.
NVidia driver
from version 555.99 (from June 4, 2024) to version 552.86 (from July 29, 2024).
The version 555.99 is not WHQL certified, the 552.86 is - and works
fine. I can switch
now (again) between HDMI inputs and after returning to Windows I still
have the image.
I really don't know why I had the version 555.99 - I didn't install it manually.
And the problems started in April, probably with another non-working
driver version.
Apparently Windows Update replaces them without asking...
P.
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