Re: [trinity-users] Re: Buster+PSB screen flashes like crazy

On Thu July 11 2019 04:35:31 Slávek Banko wrote: I don't think XServer is crashing as the .xsession-errors shows errors but not a restart and Xorg.0.log shows no errors or restart. My guess is that TDE is encountering serious errors that disrupt TDE operation but that do not cause X to crash. Lots of X startup info but no errors in Xorg.0.log. However .xsession-errors mostly consists of high-speed repeats of this approx ten times per second. Sometimes there are a lot more stale lockfile messages and sometimes a different resource id appears but it's mostly like this. [2019/07/11 05:09:30.488] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.0 [2019/07/11 05:09:30.489] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.1 [2019/07/11 05:09:30.541] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.1 [2019/07/11 05:09:30.542] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.0 [2019/07/11 05:09:30.544] X Error: BadWindow (invalid Window parameter) 3 Major opcode: 19 Minor opcode: 0 Resource id: 0xc00104 [2019/07/11 05:09:30.591] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.1 [2019/07/11 05:09:30.591] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.0 [2019/07/11 05:09:30.645] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.1 [2019/07/11 05:09:30.646] [tdecore] Deleting stale lockfile /tmp/tde-mgb/kdesktop_lock_lockfile.:0.0 [2019/07/11 05:09:30.648] X Error: BadWindow (invalid Window parameter) 3 Major opcode: 19 Minor opcode: 0 Resource id: 0xc00104 There is none of the above when the second display is disabled and TDE is working fine. Here is xrandr -q with the second monitor DISABLED in nvidia-settings and TDE 14.0.7 PSB working fine on my primary display on DP-2 and the disabled monitor on HDMI-0. Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 DP-0 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-0 connected (normal left inverted right x axis y axis) 1600x1200 60.00 + 1400x1050 74.87 1280x1024 85.02 75.02 1280x960 85.00 1152x864 85.00 1024x768 85.00 75.03 70.07 60.00 800x600 85.06 75.00 72.19 60.32 56.25 640x480 85.01 75.00 72.81 59.94 DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 381mm x 214mm 1920x1080 60.01*+ DP-3 disconnected (normal left inverted right x axis y axis) DP-4 disconnected (normal left inverted right x axis y axis) Here is the xrandr -q with the second monitor enabled as screen :1 in nvidia-settings. I had to use Failsafe mode to get this initially but (see below) after I found I could kill one of the kdesktops and stop the flashing I got the same randr -q result as in Failsafe mode. Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767 DP-0 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) DP-2 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 381mm x 214mm 1920x1080 60.01*+ DP-3 disconnected (normal left inverted right x axis y axis) DP-4 disconnected (normal left inverted right x axis y axis) Note that there is no sign of the second display even though TDE is throwing up a blue background and occasional screen unlock dialogs on the second display. The second display should be in screen :1 and not used by TDE in :0. The "screen is locked" dialogs appear randomly on one screen or the other every half minute or so - much earlier than they should appear. The flashing stops while the screen unlock dialog is present so I can type my password and return to the flashing. Here is the relevant portion of a Factorio log in the dual monitor configuration, using a TDE Failsafe login which works fine albeit it only gives you a root konsole login. Here I have started Factorio from non-root konsole in Failsafe mode in :0 and told it to run on :1. 1.910 Environment: DISPLAY=:0, WAYLAND_DISPLAY=<unset> 1.927 Display options: [FullScreen: 1] [VSync: 1] [UIScale: system (100.0%)] [MultiSampling: OFF] [Screen: 1] [Lang: en] 1.963 Available display adapters: 2 1.963 [0]: resolution 1920x1080px at [0,0] 1.963 [1]: resolution 1600x1200px at [0,0] 1.963 Create display on adapter 1. Size 1280x720 at position [150, 222]. You can even start kicker from a non-root konsole in Failsafe and things mostly work. I just discovered that in the two display configuration TDE is running kdesktop on both screens. If I guess right and kill the unwanted kdesktop the flashing stops and TDE appears usable. tdmrc has the default, unchanged from 14.0.5, including StaticServers=:0 ReserveServers=:1,:2,:3 I haven't tried changing this yet. What on earth is an on-demand (reserve) server? --Mike

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