Re: There is no signal coming from your computer..
On Fri, Jul 24, 2009 at 8:02 AM, lee wrote: > On Thu, Jul 23, 2009 at 06:29:34PM +0200, Mathieu Malaterre wrote: > >> Another debian-user reported having similar problems. In the morning when I >> get in, I do not have any problems. This seems to only appears on a shorted >> breaks. And my dell 2709W / DisplayPort clearly state: "There is no signal >> coming from your computer..." > > Afair that happened to me when I was using a graphics card that didn't > have a HDMI output on a Hannspree HF289H. It was working fine until > DPMS would become active. > > DPMS turns off the signal the graphic card sends to turn off the > display. The signal is turned back on when you type on the keyboard or > move the mouse. Apparently the monitor didn't "realize" that the > signal from the graphics card was back and remained turned off and > continued to insist that there's no signal from the graphics card. > > Check your combination of monitor and graphics card --- if you can't > fix/change that, you can try to turn off DPMS (disable it in xorg.conf > or maybe use xset to turn it off) and see what happens. Just FYI, xset'ing off DPMS did work for me :) Thanks everyone ! -- Mathieu http://mathieumalaterre.com -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Re: There is no signal coming from your computer..
On Thu, Jul 23, 2009 at 06:29:34PM +0200, Mathieu Malaterre wrote: > Another debian-user reported having similar problems. In the morning when I > get in, I do not have any problems. This seems to only appears on a shorted > breaks. And my dell 2709W / DisplayPort clearly state: "There is no signal > coming from your computer..." Afair that happened to me when I was using a graphics card that didn't have a HDMI output on a Hannspree HF289H. It was working fine until DPMS would become active. DPMS turns off the signal the graphic card sends to turn off the display. The signal is turned back on when you type on the keyboard or move the mouse. Apparently the monitor didn't "realize" that the signal from the graphics card was back and remained turned off and continued to insist that there's no signal from the graphics card. Check your combination of monitor and graphics card --- if you can't fix/change that, you can try to turn off DPMS (disable it in xorg.conf or maybe use xset to turn it off) and see what happens. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Re: There is no signal coming from your computer..
Try disabling DPMS in the X setup. This can happen when the x video driver does not tell the card to turn on the DVI signal when it returns from the DPMS-off state. On Thu, Jul 23, 2009 at 19:29, Mathieu Malaterre wrote: > > > On Thu, Jul 23, 2009 at 5:36 PM, Bob McGowan > wrote: >> >> mathieu.malate...@gmail.com wrote: >>> >>> Hi there, >>> >>> Everytime I go out for lunch and comes back to my desk I cannot get the >>> screen to wake up. Apparently typing on the keyboard does not send any >>> signal from the computer to the screen. >>> >>> Using: >>> - debian 5.0 >>> - dell precision T7500 >>> - Display/Port cable >>> >>> Thanks, >> >> If the computer is just using a screen saver, then keyboard input would >> be all that's needed to "wake" it up. >> >> So, perhaps the system has been configured to suspend or hibernate. To >> get it back up, you need to press the 'power on' button. The system >> will find an image, either in RAM or in the swap partition, and will >> reload it. > > Another debian-user reported having similar problems. In the morning when I > get in, I do not have any problems. This seems to only appears on a shorted > breaks. And my dell 2709W / DisplayPort clearly state: "There is no signal > coming from your computer..." > > I'll see if I can use the 'Input Source' from the screen panel to wake the > sceen up, without having to shut it down and then shut it up again. > > Thanks anyway > -- > Mathieu > > > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Re: There is no signal coming from your computer..
On Thu, Jul 23, 2009 at 5:36 PM, Bob McGowan wrote: mathieu.malate...@gmail.com wrote: Hi there, Everytime I go out for lunch and comes back to my desk I cannot get the screen to wake up. Apparently typing on the keyboard does not send any signal from the computer to the screen. Using: - debian 5.0 - dell precision T7500 - Display/Port cable Thanks, If the computer is just using a screen saver, then keyboard input would be all that's needed to "wake" it up. So, perhaps the system has been configured to suspend or hibernate. To get it back up, you need to press the 'power on' button. The system will find an image, either in RAM or in the swap partition, and will reload it. Another debian-user reported having similar problems. In the morning when I get in, I do not have any problems. This seems to only appears on a shorted breaks. And my dell 2709W / DisplayPort clearly state: "There is no signal coming from your computer..." I'll see if I can use the 'Input Source' from the screen panel to wake the sceen up, without having to shut it down and then shut it up again. Thanks anyway -- Mathieu signature.asc Description: OpenPGP digital signature
Re: There is no signal coming from your computer..
mathieu.malate...@gmail.com wrote: > Hi there, > > Everytime I go out for lunch and comes back to my desk I cannot get the > screen to wake up. Apparently typing on the keyboard does not send any > signal from the computer to the screen. > > Using: > - debian 5.0 > - dell precision T7500 > - Display/Port cable > > Thanks, If the computer is just using a screen saver, then keyboard input would be all that's needed to "wake" it up. So, perhaps the system has been configured to suspend or hibernate. To get it back up, you need to press the 'power on' button. The system will find an image, either in RAM or in the swap partition, and will reload it. -- Bob McGowan Symantec, Inc. smime.p7s Description: S/MIME Cryptographic Signature
