Registered Member
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After a brand new install of OpenSUSE 13.1 KDE from the install DVD a week ago, I have problems with my dual monitor setup. None of these problems occur with OpenSUSE 13.1 GNOME or Ubuntu 13.10 either.
(I have the following, in addition to this related problem (http://forum.kde.org/viewtopic.php?f=66&t=118779) ). I have two ASUS monitors (24" and 27") hooked up to the VGA and HDMI ports respectively on my laptop's Intel VGA card. Basically different ways/orders of disconnecting and reconnecting the monitors result in different (unpredictable) display settings on the HDMI screen, the following is what I do often though. If the system is in the correct display configuration and state before reboot:
restores good behavior. 2) With both monitors connected, disconnecting the VGA monitor and reconnecting it causes the same symptoms as above but sometimes without the wide strip of darkness. 3) Booting the computer with just the HDMI monitor connected cause s no problems whatsoever and the Display and Monitor settings GUI displays all refrest rates and modes. But when it is in the state as described in 1) above only refresh rates of 30, 24 and 30 and Auto are displayed. When the HDMI is restored to proper display by following the hook and crook methods of dis/reconnecting the modes displayed are still only these four but xrandr and the monitor's built in menu shows it to be at 60Hz. Between all this, at times, the HDMI configuration also changes to 1920X1080i. Not sure what the 'i' means but it results in screen flickering. Somehow the VGA monitor is unaffected and its setting is always right (1920x1080 @ 60Hz) I would love to understand what's really happening here. The problems seem to arise when both VGA and HDMI are connected. I'm determined to get to the bottom of this but unfortunately don't have the know-how of how the X system and displays and graphics drivers are stringed together, any inputs, pointers to help my investigation is greatly appreciated. Some more information: (forgive me if its irrelevant and making this post lengthy and boring)
Booting with both VGA and HDMI monitors connected, display looks good:
Very rarely additional modes for HDMI are also listed (This is when I boot with only HDMI monitor connected):
HDMI display gone bad:
Connecting VGA monitor with HDMI already connected: (1920x1080i @ 60Hz) screen is flickering) I am able to use the Display and Monitor settings GUI to correct the resolution. This time all supported refresh rates (shown in the xrandr output) are listed.
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Administrator
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Can you check to see if your system is using KScreen or KRandR?
If you're unsure, please post a screenshot of the Screen Resolution section in System Settings.
KDE Sysadmin
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Registered Member
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kscreen:
krandr - not installed
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KDE Developer
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Hi,
first please enable KSRandr in kdebugdialog, then run "kscreen-console --bug" from Konsole and attach it's output here. Next run kscreen-console again and try to reproduce the situations in each step, always providing the output from kscreen-console. Thanks
Daniel Vrátil | www.dvratil.cz | dvratil@kde.org
IRC: dvratil on Freenode (#kde, #kontact, #akonadi, #fedora-kde) |
Registered Member
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Progdan, here is the info you requested:
Here are kscreen-console outputs: Disconnecting HDMI monitor and reconnecting, screen horizontal size decreases with a wide dark unusable strip to the right.
With only HDMI connected, connect VGA monitor. Screen starts to flicker on HDMI monitor and its resolution changes to 1920x1080 i @60Hz
Starting with HDMI at a refresh rate of 30Hz (after reboot it came up with that setting with both VGA and HDMI connected), same screen size reduction with dark wide strip of unusable area
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