Arch Linux

MadCat_X

Member

Registered: 2009-10-08

Posts: 189

[SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

I did another "pacman -Syu" this morning hoping for an uneventful update. However, after a reboot I found my KDE to be in a pretty much useless. Windows were black except for decorations (http://prifuk.cz/non_drupal/kwin_black.jpg) and DRI_PRIME=1 doesn't run 3D acceleration on my Radeon DIS anymore. At first I suspected a problem with mesa but the problem persisted even after a downgrade to 10.0.1 which worked fine for me. Another suspect on the list is X.Org but I cannot roll back to 1.14 because everything apparently depends on GLAMOR now and I do not have all necessary packages in pacman's cache anymore.

I switched KWin to use XRender instead of OpenGL which at least renders the screen correctly, OpenBox works fine too. I might be wrong about X.Org being the cause but I can't think of anything else. Does anybody have any idea how to debug this issue? I have an Intel HD3000 + Radeon 6400M, both were working fine before the last update.

http://prifuk.cz/non_drupal/Xorg.0.log

Last edited by MadCat_X (2014-01-15 21:15:46)

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

Use https://wiki.archlinux.org/index.php/Ar … ck_Machine to downgrade if needed.

MadCat_X

Member

Registered: 2009-10-08

Posts: 189

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

Use https://wiki.archlinux.org/index.php/Ar … ck_Machine to downgrade if needed.

Thanks... I'll give it a shot at my nearest convenience...

obscurity

Member

Registered: 2014-01-14

Posts: 1

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

I noticed this as well, though not using kwin. I got DRI_PRIME back by manually

xrandr --setprovideroffloadsink 0x55 0x7d

where the numbers are the given by

xrandr --listproviders

(xrandr is not installed by default with Xorg, package name xorg-xrandr).

Reference: Prime - ArchWiki
I have not yet delved deeper into why it's no longer set automatically.

EDIT: I probably jumped the gun, I have none of your problems, I just noticed DRI_PRIME=1 wasn't enough to use the radeon card. I probably had to:

xrandr --setprovideroffloadsink 0x55 0x7d

before as well.

Last edited by obscurity (2014-01-14 14:04:59)

MadCat_X

Member

Registered: 2009-10-08

Posts: 189

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

I noticed this as well, though not using kwin. I got DRI_PRIME back by manually

xrandr --setprovideroffloadsink 0x55 0x7d

where the numbers are the given by

xrandr --listproviders

(xrandr is not installed by default with Xorg, package name xorg-xrandr).

Reference: Prime - ArchWiki
I have not yet delved deeper into why it's no longer set automatically.

Apparently my Intel card is now listed as '0x7b' instead of '0x79' so I had to update my xinitrc script. This leaves me with just KWin rendering black windows when set to OpenGL.

MadCat_X

Member

Registered: 2009-10-08

Posts: 189

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

I did another update today and KWin seems to work with OpenGL now. I didn't check the KDE 4.12.1 changelog if there was anything updated in KWin to fix this issue so unfortunately I'm uncertain why it works again...

Sanya_M

Member

Registered: 2014-01-04

Posts: 7

Re: [SOLVED] Upgrade to XOrg 1.15 broke KWin and DRI_PRIME

For me this still happens after all updates

Only downgrading to XOrg 1.14.5 helps