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Thread Tools | Display Modes |
#21
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power management - can't wake from sleep mode
"Paul" wrote in message ... Adam wrote: "Cybe R. Wizard" wrote in message ... On Thu, 1 Oct 2015 19:46:23 -0700 "Adam" wrote: I selected the USB keyboard for resume. But, after suspend, pressing the Ctrl key causes some activity (NumLock light comes ON, etc.) so I know something is happening but the monitor/display does not resume. Does the computer show activity? Maybe it's just monitor turning itself off. Thanks, yes, on key press, there is partial resume (I hear activity from drives, NumLock light comes ON, but monitor power light does not turn GREEN from AMBER). Can't tell what else is happening. I think I'd want to test control-alt-Fn or similar and see if a console-like window appears. You can switch between X and a set of terminal windows, using some control-key combinations. http://linux.about.com/od/linux101/l/blnewbie5_1.htm CtrlAltFn (n=1..6) Switch to the nth text terminal. So something like CtrlAltF4 might work. Using CtrlAltF7 takes you back to X. With appropriate assumptions about whether the input subsystem is running or not... Thanks, but no luck. Pressing CtrlAltFn for all n=1..7 made no difference. The other possibility, is video output is being sent to the wrong output connector. Depending on the video card, you might not have enough interface types on the monitor, to test all possible video card outputs (like the cards with DisplayPort on them). The monitor only has DVI-D and VGA (not used) connectors. The Radeon HD 6850 has a Single-link DVI-D and a Dual-link DVI-I connection. Moving the DVI cable made no difference. I was able to open the DVD drives. If the video driver has impedance sensing working, then unplugging the monitor connector and plugging it back in, should help the video subsystem notice a monitor has been connected. But it doesn't guarantee it will be driven immediately. I don't think any OS flips to multi-monitor mode, just because a second or nth monitor just appeared on the hardware interface. Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. Even "pinging" the broken computer, will help you determine its running state. If it answers a ping, then "it's alive", for some value of "alive". Paul Bingo! Thanks (Guru Paul), from my laptop, I started ping... ping ASUS-DESKTOP ip addr which kept spewing out info... snip 64 bytes from 192.168.1.104: icmp_seq=626 ttl=64 time=0.218 ms 64 bytes from 192.168.1.104: icmp_seq=627 ttl=64 time=0.151 ms 64 bytes from 192.168.1.104: icmp_seq=628 ttl=64 time=0.257 ms 64 bytes from 192.168.1.104: icmp_seq=629 ttl=64 time=0.217 ms 64 bytes from 192.168.1.104: icmp_seq=630 ttl=64 time=0.144 ms 64 bytes from 192.168.1.104: icmp_seq=631 ttl=64 time=0.197 ms snip Then, I suspend the desktop causing ping to stop generating info on the laptop. Pressing CtrlAltF1 on the suspended system caused ping to continue generating info on the laptop again. Seems like the system was able to resume but not the display subsystem. |
#22
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power management - can't wake from sleep mode
On 10/02/2015 10:30 AM, Adam wrote:
snip... /and so should you!/ Then, I suspend the desktop causing ping to stop generating info on the laptop. Wait, what? I must have missed this in the details, but you're looking to suspend a desktop? Why? Pressing CtrlAltF1 on the suspended system caused ping to continue generating info on the laptop again. Seems like the system was able to resume but not the display subsystem. Right, so as I suggested before (and so it seems from another post of yours) it appears that your graphics drivers are not installed/configured properly. Reinstall the proprietary drivers (best from AMD directly as instructed) or try the radeon driver (unless that's what you're actually using now). Have you even checked to see which driver is loaded? something like: lspci -nnk | grep -i vga -A3 | grep 'in use' |
#23
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power management - can't wake from sleep mode
On Fri, Oct 02 2015, Paul wrote:
Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. I'm seeing the same issue on 2 computers with 15.04 - one a desktop one a laptop, the machine is running, I can ssh in but I can't get the monitor to wake. X was still running, I tried killing off the session (whilst in with ssh) with no effect. In my case both have the nvidia drivers. Robert -- Robert Marshall twitter: @rajm |
#24
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power management - can't wake from sleep mode
On Sat, 03 Oct 2015 10:00:05 +0100, Robert Marshall
Gave us: On Fri, Oct 02 2015, Paul wrote: Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. I'm seeing the same issue on 2 computers with 15.04 - one a desktop one a laptop, the machine is running, I can ssh in but I can't get the monitor to wake. X was still running, I tried killing off the session (whilst in with ssh) with no effect. In my case both have the nvidia drivers. Robert Ctrl-Alt-F2 doesn't bring up a command line login prompt? If so, then Ctrl-Alt-F7 should return you to the X session. Or from there, you could stop the display manager then restart it. |
#25
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power management - can't wake from sleep mode
On Sat, Oct 03 2015, DecadentLinuxUserNumeroUno wrote:
On Sat, 03 Oct 2015 10:00:05 +0100, Robert Marshall Gave us: On Fri, Oct 02 2015, Paul wrote: Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. I'm seeing the same issue on 2 computers with 15.04 - one a desktop one a laptop, the machine is running, I can ssh in but I can't get the monitor to wake. X was still running, I tried killing off the session (whilst in with ssh) with no effect. In my case both have the nvidia drivers. Robert Ctrl-Alt-F2 doesn't bring up a command line login prompt? If so, then Ctrl-Alt-F7 should return you to the X session. Or from there, you could stop the display manager then restart it. No it doesn't, keyboard seemed dead. Whilst in the ssh session I tried a sudo reboot which closed the connection (inevitably) but didn't reboot, I guess the un-sleep is waiting for something which overrides the reboot Prior to 15.04 sleep worked fine (and for a some time after the upgrade) as to what was updated after that that's broken sleep I'm not certain - I initially thought it was odd but thought it must be me! I'll try invoking a sleep again and an ssh'ed reboot and examine /var/log carefully for clues. Robert -- Robert Marshall twitter: @rajm |
#26
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power management - can't wake from sleep mode
On Sat, 03 Oct 2015 11:49:02 +0100, Robert Marshall
Gave us: On Sat, Oct 03 2015, DecadentLinuxUserNumeroUno wrote: On Sat, 03 Oct 2015 10:00:05 +0100, Robert Marshall Gave us: On Fri, Oct 02 2015, Paul wrote: Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. I'm seeing the same issue on 2 computers with 15.04 - one a desktop one a laptop, the machine is running, I can ssh in but I can't get the monitor to wake. X was still running, I tried killing off the session (whilst in with ssh) with no effect. In my case both have the nvidia drivers. Robert Ctrl-Alt-F2 doesn't bring up a command line login prompt? If so, then Ctrl-Alt-F7 should return you to the X session. Or from there, you could stop the display manager then restart it. No it doesn't, keyboard seemed dead. Whilst in the ssh session I tried a sudo reboot which closed the connection (inevitably) but didn't reboot, I guess the un-sleep is waiting for something which overrides the reboot Prior to 15.04 sleep worked fine (and for a some time after the upgrade) as to what was updated after that that's broken sleep I'm not certain - I initially thought it was odd but thought it must be me! I'll try invoking a sleep again and an ssh'ed reboot and examine /var/log carefully for clues. Robert There was a thread here (the ubuntu group) a while ago about a key sequence which restarts a supposedly locked up system. It utilizes the system request key (SysRq) Perhaps that person could repost the procedure for you, as I was unable to find the thread. |
#27
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power management - can't wake from sleep mode
On Sat, Oct 03 2015, DecadentLinuxUserNumeroUno wrote:
On Sat, 03 Oct 2015 11:49:02 +0100, Robert Marshall Gave us: On Sat, Oct 03 2015, DecadentLinuxUserNumeroUno wrote: On Sat, 03 Oct 2015 10:00:05 +0100, Robert Marshall Gave us: On Fri, Oct 02 2015, Paul wrote: Now, in the good ole days (my Unix youth), we used to Telnet into black screen boxen, and see whats up. But of course we can't have nice things now, so no telnetd (via inetd) for you... In simpler times, we could tunnel in, do some checking, and see whether X was actually running or not. Go check the log for X and so on. I'm seeing the same issue on 2 computers with 15.04 - one a desktop one a laptop, the machine is running, I can ssh in but I can't get the monitor to wake. X was still running, I tried killing off the session (whilst in with ssh) with no effect. In my case both have the nvidia drivers. Robert Ctrl-Alt-F2 doesn't bring up a command line login prompt? If so, then Ctrl-Alt-F7 should return you to the X session. Or from there, you could stop the display manager then restart it. No it doesn't, keyboard seemed dead. Whilst in the ssh session I tried a sudo reboot which closed the connection (inevitably) but didn't reboot, I guess the un-sleep is waiting for something which overrides the reboot Prior to 15.04 sleep worked fine (and for a some time after the upgrade) as to what was updated after that that's broken sleep I'm not certain - I initially thought it was odd but thought it must be me! I'll try invoking a sleep again and an ssh'ed reboot and examine /var/log carefully for clues. Robert There was a thread here (the ubuntu group) a while ago about a key sequence which restarts a supposedly locked up system. It utilizes the system request key (SysRq) Perhaps that person could repost the procedure for you, as I was unable to find the thread. ALT-SysRq rseiub (something about Skinny Elephants being Utterly Boring) I tried that too but will check next time whether sysrq is enabled /proc/sys/kernel/sysrq suggests it is.. This looks interesting when logged in via ssh https://en.wikipedia.org/wiki/Magic_..._Magic_Sys Rq ie echo $SYSRQLetter /proc/sysrq-trigger I see that page prefers reisub Robert -- Robert Marshall twitter: @rajm |
#28
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power management - can't wake from sleep mode
"stepore" wrote in message ... On 10/02/2015 10:30 AM, Adam wrote: snip... /and so should you!/ Then, I suspend the desktop causing ping to stop generating info on the laptop. Wait, what? I must have missed this in the details, but you're looking to suspend a desktop? Why? For "automatic" energy efficiency. Screensaver Preferences has Power Management settings that I would like to take advantage of to save energy costs without having to manually shutdown the system, which is not good for the system. Pressing CtrlAltF1 on the suspended system caused ping to continue generating info on the laptop again. Seems like the system was able to resume but not the display subsystem. Right, so as I suggested before (and so it seems from another post of yours) it appears that your graphics drivers are not installed/configured properly. Reinstall the proprietary drivers (best from AMD directly as instructed) or try the radeon driver (unless that's what you're actually using now). Have you even checked to see which driver is loaded? something like: lspci -nnk | grep -i vga -A3 | grep 'in use' Thanks, entering that command gives... Kernel driver in use: fglrx _pci |
#29
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power management - can't wake from sleep mode
In alt.comp.hardware.pc-homebuilt Robert Marshall wrote in part:
On Sat, Oct 03 2015, DecadentLinuxUserNumeroUno wrote: There was a thread here (the ubuntu group) a while ago about a key sequence which restarts a supposedly locked up system. It utilizes the system request key (SysRq) Perhaps that person could repost the procedure for you, as I was unable to find the thread. ALT-SysRq rseiub (something about Skinny Elephants being Utterly Boring) I tried that too but will check next time whether sysrq is enabled /proc/sys/kernel/sysrq suggests it is.. This looks interesting when logged in via ssh https://en.wikipedia.org/wiki/Magic_..._Magic_Sys Rq ie echo $SYSRQLetter /proc/sysrq-trigger I see that page prefers reisub In X on my Ubuntu-derived system, it takes CTLALTSYSREQ to be held down while hitting the Magic SysRq commands. sync is generally safe, and shows in `dmesg` I've always used sync, unmount, boot and I have no idea why you might want REI as well. -- Robert |
#30
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power management - can't wake from sleep mode
On 03/10/15 23:59, Adam wrote:
For "automatic" energy efficiency. Screensaver Preferences has Power Management settings that I would like to take advantage of to save energy costs without having to manually shutdown the system, which is not good for the system. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Why would that be? -- Mike R. Home: http://alpha.mike-r.com/ QOTD: http://alpha.mike-r.com/php/qotd.php No Micro$oft products were used in the URLs above, or in preparing this message. Recommended reading: http://www.catb.org/~esr/faqs/smart-...ns.html#before --- news://freenews.netfront.net/ - complaints: --- |
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