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qurn

Member

Registered: 2017-10-13

Posts: 21

[SOLVED] qt applications freeze except when a video is running

I use the qt applications tipp10 and kolourpaint sometimes. Every few minutes the applications freezes for some seconds. Even the mouse cursor freezes. I wanted to check if the screen is frozen too with youtube running and noticed i have no freezes anymore. Vlc player works too.

The hardware is a Matebook X with a intel core i5-7200, 8gb ram.

sudo lspci -vnn | grep VGA -A 12
00:02.0 VGA compatible controller [0300]: Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller])
	Subsystem: Huawei Technologies Co., Ltd. HD Graphics 620 [19e5:3e02]
	Flags: bus master, fast devsel, latency 0, IRQ 131
	Memory at a0000000 (64-bit, non-prefetchable) [size=16M]
	Memory at 90000000 (64-bit, prefetchable) [size=256M]
	I/O ports at 4000 [size=64]
	Expansion ROM at 000c0000 [virtual] [disabled] [size=128K]
	Capabilities: [40] Vendor Specific Information: Len=0c <?>
	Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
	Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
	Capabilities: [d0] Power Management version 2
	Capabilities: [100] Process Address Space ID (PASID)
	Capabilities: [200] Address Translation Service (ATS)

I use DWM. I tried every rendering backend in systemsettings5.

Maybe the hardware goes in some sleep mode except when a video is running. I haven't messed with powertop or anything. Charging or battery state doesn't matter.

Last edited by qurn (2020-04-23 05:11:55)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,364

Re: [SOLVED] qt applications freeze except when a video is running

if xf86-video-intel is installed, try removing it and potential configs using it.

Last edited by V1del (2020-04-23 00:42:53)

qurn

Member

Registered: 2017-10-13

Posts: 21

Re: [SOLVED] qt applications freeze except when a video is running

Thanks. TearFree option is sufficient..

Edit: It is not sufficient. Removing the package solves the problem. I haven't found a option that suffice yet. I can live with the performance without the package.

Edit 2: disable vsynch + TearFree solved it.

Last edited by qurn (2020-04-24 12:59:17)