Rootserver Sponsor

webtropia"

Donations

Please support your operating system's further development:

donate"

Post new topic   Reply to topic
View previous topic Printable version Log in to check your private messages View next topic
Author Message
alexkOffline
15 Post subject: KDM login screen flickering (Solved)  PostPosted: 31.05.2015, 18:46



Joined: 2010-10-01
Posts: 288

Status: Offline
In the last month or two, whenever I reboot, the KDM login screen is continuously flickering. It gets stable after restarting the X server, e.g. through the login screen menu option. I haven't seen any other display issues. Last dist-upgraded today at 14:22.
      Code:
$ infobash -v3
Host/Kernel/OS  "MSAK1" running Linux 4.0.0-4.slh.1-aptosid-amd64 x86_64 [ sidux 2009-02 Αιθήρ - kde-full - (200907141427) ]
CPU Info        4x Intel Core i5-2500K @ 6144 KB cache flags( sse3 ht nx lm vmx ) clocked at [ 2300.074 MHz ]
Videocard       Intel 2nd Generation Core Processor Family Integrated Graphics Controller  X.Org 1.17.1  [ 1280x1024@60.02hz ]
Processes 209 | Uptime 12min | Memory 1731.1/15961.3MB | HDD WDC WD3200AAKS-0 Size 320GB (58%used) | Client Shell | Infobash v3.49


Last edited by alexk on 19.07.2015, 16:27; edited 1 time in total
 
 View user's profile Send private message Yahoo Messenger  
Reply with quote Back to top
slhOffline
Post subject: RE: KDM login screen flickering  PostPosted: 31.05.2015, 20:50



Joined: 2010-08-25
Posts: 949

Status: Offline
How is your screen connected, VGA, DVI, HDMI, displayport or something else?

When it happens next time, please check your monitor's OSD and look for resolution/ frequencies - compare those values to your expected ones (and what you get after restarting kdm). Another thing to check would be if switching to a tty ([ctrl]+[alt]+[f1], back to [ctrl]-[alt]-[f7]) already influences the results.
 
 View user's profile Send private message  
Reply with quote Back to top
alexkOffline
Post subject: RE: KDM login screen flickering  PostPosted: 01.06.2015, 01:52



Joined: 2010-10-01
Posts: 288

Status: Offline
The screen is connected via DVI. I'll check the OSD.
 
 View user's profile Send private message Yahoo Messenger  
Reply with quote Back to top
mithatOffline
Post subject: RE: KDM login screen flickering  PostPosted: 19.06.2015, 11:12



Joined: 2011-12-15
Posts: 31

Status: Offline
I'm having the same issue but with lightdm-gtk-greeter -- with what I suspect is the same xserver restart behavior: logging in then logging out removes the login screen flicker. I'm on a Samsung laptop. I'll try switching to a tty and back on my next reboot.

      Code:

$ lspci
...
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
...
 
 View user's profile Send private message  
Reply with quote Back to top
mithatOffline
Post subject: RE: KDM login screen flickering  PostPosted: 19.06.2015, 12:43



Joined: 2011-12-15
Posts: 31

Status: Offline
I just rebooted and switched to a tty at the login screen (Ctrl+Alt+F1). On switching back to the login screen (Ctrl+Alt+F7), I did not see any flickering.
 
 View user's profile Send private message  
Reply with quote Back to top
alexkOffline
Post subject: RE: KDM login screen flickering  PostPosted: 04.07.2015, 03:54



Joined: 2010-10-01
Posts: 288

Status: Offline
This issue finally disappeared after an upgrade for me, no more flickering login. Switching to a tty and back hadn't stopped the flickering. The monitor's OSD did show unexpected frequencies.
 
 View user's profile Send private message Yahoo Messenger  
Reply with quote Back to top
Display posts from previous:     
Jump to:  
All times are GMT - 12 Hours
Post new topic   Reply to topic
View previous topic Printable version Log in to check your private messages View next topic
Powered by Zafenio