When I move a window using mouse, the window lags.

sami · 2019-05-22 07:53:10

When I move a window by left-clicking on the title-bar and holding the mouse button down, I can see some flicker in window.

When I move mouse and stop the window continues to move before coming to rest and there is a tearing of window.

If I try with small sized window, then this issue is not seen.

Can any one tell me what is the root cause and how to fix this issue.

ToZ · 2019-05-22 23:01:58

Which version of Xfce? What video card and driver are you using?

sami · 2019-05-22 23:56:05

I am using XFCE Version 4.12, distributed by petalinux and Mali 400 GPU on Xilinx ultrascale uz3eg board

ToZ · 2019-05-22 23:59:31

Can you post back the results of the following:

lspci -k | grep -A5 VGA

xfwm4 -V

xfconf-query -c xfwm4 -lv

sami · 2019-05-23 00:05:21

sh-4.4# lspci (no output from lspci)
sh-4.4# xfwm4 -V
This is xfwm4 version 4.12.4 (revision 7844952) for Xfce 4.12
Released under the terms of the GNU General Public License.
Compiled against GTK+-2.24.31, using GTK+-2.24.31.

Build configuration and supported features:
- Startup notification support: Yes
- XSync support: Yes
- Render support: Yes
- Xrandr support: Yes
- Embedded compositor: Yes
- KDE systray proxy (deprecated): No

sh-4.4# xfconf-query -c xfwm4 -lv
/general/activate_action none
/general/borderless_maximize false
/general/box_move false
/general/box_resize false
/general/button_layout O|SHMC
/general/button_offset 0
/general/button_spacing 0
/general/click_to_focus true
/general/cycle_apps_only false
/general/cycle_draw_frame false
/general/cycle_hidden false
/general/cycle_minimum false
/general/cycle_preview false
/general/cycle_tabwin_mode 0
/general/cycle_workspaces false
/general/double_click_action maximize
/general/double_click_distance 5
/general/double_click_time 250
/general/easy_click Alt
/general/focus_delay 250
/general/focus_hint false
/general/focus_new true
/general/frame_opacity 0
/general/full_width_title true
/general/horiz_scroll_opacity false
/general/inactive_opacity 0
/general/maximized_offset 0
/general/mousewheel_rollup false
/general/move_opacity 0
/general/placement_mode mouse
/general/placement_ratio 20
/general/popup_opacity 0
/general/prevent_focus_stealing false
/general/raise_delay 250
/general/raise_on_click true
/general/raise_on_focus false
/general/raise_with_any_button false
/general/repeat_urgent_blink false
/general/resize_opacity 0
/general/scroll_workspaces false
/general/shadow_delta_height 0
/general/shadow_delta_width 0
/general/shadow_delta_x 0
/general/shadow_delta_y -3
/general/shadow_opacity 50
/general/show_app_icon false
/general/show_dock_shadow false
/general/show_frame_shadow false
/general/show_popup_shadow false
/general/snap_resist false
/general/snap_to_border true
/general/snap_to_windows false
/general/snap_width 10
/general/sync_to_vblank true
/general/theme Default
/general/tile_on_move false
/general/title_alignment center
/general/title_font Sans Bold 9
/general/title_horizontal_offset 0
/general/title_shadow_active false
/general/title_shadow_inactive false
/general/title_vertical_offset_active 0
/general/title_vertical_offset_inactive 0
/general/titleless_maximize false
/general/toggle_workspaces false
/general/unredirect_overlays false
/general/urgent_blink false
/general/use_compositing false
/general/workspace_count 4
/general/workspace_names <<UNSUPPORTED>>
/general/wrap_cycle false
/general/wrap_layout false
/general/wrap_resistance 10
/general/wrap_windows true
/general/wrap_workspaces false
/general/zoom_desktop true

sami · 2019-05-23 00:14:28

and I can see in the top command that Xorg uses around 87% CPU when I just move any window once.

ToZ · 2019-05-23 00:35:02

What is a Xilinx ultrascale uz3eg board? Is it some sort of embedded system?

and I can see in the top command that Xorg uses around 87% CPU when I just move any window once.

That would do it. Not sure what to suggest (you already have the compositor disabled).

sami · 2019-05-23 00:45:05

Yes it is embedded system board

sami · 2019-05-23 02:31:08

how can I make XFCE to use GPU instead of CPU for rendering.

ToZ · 2019-05-23 10:42:43

It would be something you would configure in your video card - it would decide whether to use the GPU or offload to the CPU. It's interesting that lspci doesn't identify your video card and driver.

Can you post back the full content of "lspci" so we can see what components are identified by the kernel as well as the full contents of your Xorg.log file?

Maybe also the contents of "dmesg".

sami · 2019-05-24 01:10:35

Mali GPU is integrated in SOC and it is not connected via PCI interface.

Please find the xorg.conf, Xorg.0.log and dmesg below
xorg.conf : https://pastebin.com/5FRHuacq
Xorg.0.log : https://pastebin.com/EaT2xQMU
dmesg output : https://pastebin.com/6rwZvNzA

And is there any way to disable the compositor from any configuration file in xfce or any command that I can run during startup to disable the compositor?

ToZ · 2019-05-24 01:47:57

sami wrote:

And is there any way to disable the compositor from any configuration file in xfce or any command that I can run during startup to disable the compositor?

If you disable the compositor at Settings Manager > Window Manager Tweaks > Compositor, it will persist over logins. You can also run the following command:

xfconf-query -c xfwm4 -p /general/use_compositing -s false

...or alternatively, start xfwm4 with the "--compositor=off" parameter.

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#1 2019-05-22 07:53:10

When I move a window using mouse, the window lags.

#2 2019-05-22 23:01:58

Re: When I move a window using mouse, the window lags.

#3 2019-05-22 23:56:05

Re: When I move a window using mouse, the window lags.

#4 2019-05-22 23:59:31

Re: When I move a window using mouse, the window lags.

#5 2019-05-23 00:05:21

Re: When I move a window using mouse, the window lags.

#6 2019-05-23 00:14:28

Re: When I move a window using mouse, the window lags.

#7 2019-05-23 00:35:02

Re: When I move a window using mouse, the window lags.

#8 2019-05-23 00:45:05

Re: When I move a window using mouse, the window lags.

#9 2019-05-23 02:31:08

Re: When I move a window using mouse, the window lags.

#10 2019-05-23 10:42:43

Re: When I move a window using mouse, the window lags.

#11 2019-05-24 01:10:35

Re: When I move a window using mouse, the window lags.

#12 2019-05-24 01:47:57

Re: When I move a window using mouse, the window lags.

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