If my Toshiba laptop was initially booted with an external monitor plugged into the VGA port, and the VGA cable is later unplugged, then when the laptop is suspended/resumed, the laptop's built-in screen comes back blank. This makes it impossible to have the laptop set up with an external monitor and "grab it and go", because after unplugging and suspending there's no way using just the laptop of turning the built-in screen back on: -- I can't bring the screen back on with Fn+F5 which is the normal video pipe switch key combination. -- If I manually plug the VGA adapter back in (=> laptop panel stays black) and *then* when go Fn+F5, I can cycle through the various pipe modes and eventually get the laptop screen back again. Note that on this laptop: (1) If the VGA plug is *not* plugged in when the laptop boots, xrandr can't ever enable the VGA pipe, and hotplugging the monitor fails to produce an image on the external monitor. So I have to reboot with the VGA plug in if I ever want to operate an external monitor or projector. (2) Generally once I have booted with the VGA cable attached and entered a graphical mode, I can pull out the cable and plug it back in again at will => hotplugging works (as long as I don't suspend). Smolt profile: http://www.smolts.org/client/show/pub_23bfefe1-3686-445b-a57b-7a661a3325f6 Version-Release number of selected component (if applicable): Fedora 15 Alpha (power test day snapshot) How reproducible: 100% [I also noticed that if the VGA-out is plugged into an external monitor when the lid is closed, the laptop does not suspend -- I expect this is by design to prevent unintentional suspending?]
See also Bug 692761.
Thanks for the bug report. We have reviewed the information you have provided above, and there is some additional information we require that will be helpful in our diagnosis of this issue. Please add drm.debug=0x04 to the kernel command line, restart computer, and attach * your X server config file (/etc/X11/xorg.conf, if available), * X server log file (/var/log/Xorg.*.log) * output of the dmesg command, and * system log (/var/log/messages) to the bug report as individual uncompressed file attachments using the bugzilla file attachment link above. We will review this issue again once you've had a chance to attach this information. Thanks in advance.
Created attachment 499320 [details] Garbled screen after resumiung from suspend
I am experiencing similar behaviour, but my screen is more garbled than blank (see attachment). I am also attaching the requested info
Created attachment 499322 [details] Xorg.0.log
Created attachment 499324 [details] Dmesg log
Created attachment 499325 [details] Messages
I have experimented with this and it is 100% reproducible. It also happens if I use a HDMI->DMI cable in the HDMI socket (obviously) as well as with a standard DSUB cable.
This bug is no NOT experienced with a fresh install of Fedora 15/KDE.
(In reply to comment #9) > This bug is no NOT experienced with a fresh install of Fedora 15/KDE. I have fresh KDE/F15 install and this bug is reproducible. When i plug in to VGA external monitor i get pop up message asking me if i want to configure external monitor. I choose to activate external and deactivate native laptop screen. When i unplug VGA connector (and want to sit on the couch :) i left with black screen. I have to reboot after that.
Couple of days ago i tested laptop with Gnome3 (F15) and i couldn't reproduce this any more. I plugged in VGA cable attached to external monitor, i was greeted with monitor selection menu on my laptop screen. I have chosen to activate external monitor and deactivate laptop screen. GDM session jumped to external monitor asking me if i wanted to keep this settings. After confirming it i could go on with my work. Then i just unplugged my external monitor from laptop and GDM session jumped back to the laptop screen without a glitch. When i rebooted laptop and plugged in external monitor GDM session jumped immediately to the external screen. I have suspended laptop while external monitor plugged on VGA and after bringing laptop back from suspension i got GDM session back on external screen as (hoped) expected. I ran another test. Suspended laptop while external monitor was attached to it, put laptop to suspend, unplugged monitor and then woke laptop up. GDM screen jumped to laptop screen....Nice. At least in my case it looks like specific KDE issue.
It's a GNOME3 issue, not a KDE issue for me.
(In reply to comment #12) > It's a GNOME3 issue, not a KDE issue for me. soooo....wonna exchange problems? :)
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