Red Hat Bugzilla – Bug 586111
Can't login with external monitor
Last modified: 2010-04-30 06:50:45 EDT
Description of problem:
This only holds for KDE F13 beta install.
I got 24" monitor that i connect to netbook using VGA cable. When i boot laptop i get dual screen situation - it's where i can drag mouse pointer across both (laptop and 24" external) monitors. When i press Fn-F7 combination i export screen to only 24" external monitor. then i try to login, then it looks like desktop starts to initialize but then screen blinks and i'm at login prompt all over again.
Under Gnome it works just fine.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Clean install F13 beta KDE
2. Plug VGA to netbook and boot
3. Try with Fn-F7 key combination export screen to external monitor
It is impossible even to login into system
Working environment on external 24" moniitor
Some hard-/software specs:
- netbook Sony vaio VPCW21S1E, CPU Intel Nano450, GPU integrated Intel 3150
- Fedora 13 beta
I found out that when desktop effects are turned off then everything goes fine. But moment i turn desktop effects on everything goes wrong again.
3D doesn't work on gen3 parts (915, 945, G33, or Nano) at display widths greater than 2048. This is a hardware limitation, not something the driver can fix.
I do not quite understand. I do not have monitor with resolution greater then 2048. My monitor is 1920x1200 pixels and if i logged in and then enable 3D then everything works just fine.
I realize that might sound strange especially when even Sony website says in techspecs of this particular laptop that external monitor greater then 1920x1050 is not supported.
Bu the fact is - it does support my (higher resolution) monitor and 3D is working with every kind of effect enabled in settings.
Only things is i have to have it disabled before i log in to system.
Please share your thoughts about this.
I'm not gonna reopen ticket, because i can be overseeing something.