FS#50119 - [xf86-video-intel] Version 1:2.99.917+682+g4eaab17-1 DRI3 causes 'slowness' and glitches

Attached to Project: Arch Linux
Opened by Bastian Beranek (totsilence) - Thursday, 21 July 2016, 12:41 GMT
Last edited by Andreas Radke (AndyRTR) - Wednesday, 24 January 2018, 06:32 GMT
Task Type Bug Report
Category Packages: Testing
Status Closed
Assigned To Andreas Radke (AndyRTR)
Jan Alexander Steffens (heftig)
Laurent Carlier (lordheavy)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

The version

1:2.99.917+682+g4eaab17-1

of xf86-video-intel in testing added the configure flag "--with-default-dri=3". Since I updated to this version I'm experiencing 'slowness' of the KDE Plasma 5 Desktop as well as some graphical artifacts from time to time. For example: The KDE "K" logo in the default plasma splash screen which appears after logging in through "SDDM" used to have the "K" logo sliding in from the right, after the update to the DRI3 version of xf86-video-intel it directly appears in the center, after some delay.

The desktop is usable, but the slowdown is noticeable.

I have built the package myself without the --with-default-dri=3 flag and the issue goes away. Putthing the flag back in introduces the problem again.

This is with a Lenovo W520. I'm using both video cards (NVIDIA Optimis), with the NVIDIA card set as "provideroutputsource" for the Intel card, to allow dual screen.
This task depends upon

Closed by  Andreas Radke (AndyRTR)
Wednesday, 24 January 2018, 06:32 GMT
Reason for closing:  Fixed
Additional comments about closing:  Very old bug, assuming fixed with recent updates.
Comment by Alexander Schnaidt (Namarrgon) - Thursday, 21 July 2016, 12:59 GMT
'Option "DRI" "2"' in an xorg.conf.d snippet is enough to switch back to DRI2, no need to rebuild the package; 'man 4 intel'.
Comment by Bastian Beranek (totsilence) - Thursday, 21 July 2016, 18:59 GMT
Thanks Alexander, that's working. Although I slightly dislike the workaround given that both drivers for the two cards were automatically detected and correctly set up without any xorg.conf.d files previously. I now had to make a Device Section for the NVIDIA card as well, because otherwise X would use only the Intel card and wouldn't activate both.

Loading...