Has anyone had a problem with their LCD monitor waking up from its monitor sleep?

[antdude]

Hello!

This morning (computer was not used for over 11 hours; screen saver came up after 75 minutes; monitor went to sleep after two hours), my 19" Samsung 931BF LCD monitor (VGA connection due to an old KVM switch) wouldn't wake up for the first time with this 10-11 months old ATI Radeon HD 4870 video card (512 MB) and system (did a major upgrade end of December 2008. My other computer with its EVGA GeForce 8800 GT, again on KVM and VGA connection, detected the monitor's wakeup just fine.

I checked my updated Windows XP Pro. SP3 (IE6)'s event logs and nothing odd about this. I was able to connect to my computer remotely with SSH connection and it wasn't frozen. I just couldn't wake up the monitor. I tried killing ccc.exe too, but that didn't help. Is there a way to restart the video driver's signal or something? I checked thc video cables too and nothing helped. I did a psshutdown -r -f with via SSH and was able to see my screen after the computer reboot.

I recall my five years old office machine (onboard ATI Radeon X300?) did it a few times, rarely, and could not figure out why (even driver upgrades). So I disabled its monitor sleep and turned off the monitor manually (I rarely forget, but if I did then my employer's boring screen saver runs). If I still can't fix it on my home PC, I might have to do the same trick.

Has anyone seen this problem before? I have never seen this sleep and wakeup problem on non-ATI video cards with various NVIDIA video cards (GeForce 4200, 5200, 6800 AGP, and 7950 GT KO) and formerly 3Dfx (Monsters 3D 1-Voodoo 1 and Creative 3D Blaster-Voodoo 2) and 2D cards (before 3D cards like Diamond Stealth).

Thank you in advance.

[kn00tcn]

possible issue could be the KVM

there was a thread very similar to this a few months ago... or was that your thread or did you post in it then?

(were you the one that had DXVA issues & bsods?)

[antdude]

Originally Posted by kn00tcn

possible issue could be the KVM

there was a thread very similar to this a few months ago... or was that your thread or did you post in it then?

(were you the one that had DXVA issues & bsods?)

I was the one who posted about the blue screens with DVB Viewer Pro v4 with the newer DVA files (had to downgrade DXA files to v8.10 in safe mode). I never got any fixes or updates on that issue (probably still happens in v9.9, currently at v9.7 -- got tired of upgrading, replacing files, reconfiguring, retesting, etc. -- will only test if there is something significant like speed improvements, fixes, etc.).

I don't remember posting about KVM and sleeping monitor. If I did, then that would had been years ago and that same office machine (new back then) never had KVM connected (still never used a KVM today).

[kinney]

I've seen this before on my systems. It was the drivers. Try different monitor drivers/profile, especially if it's on generic. An old KVM doesn't help matters, but I don't think it should be an issue.

[antdude]

Originally Posted by kinney

I've seen this before on my systems. It was the drivers. Try different monitor drivers/profile, especially if it's on generic. An old KVM doesn't help matters, but I don't think it should be an issue.

Yeah, I am already using Samsung's monitor driver. So far, I have only seen this problem since I used this video card (December 2008).