[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Jan Grulich]

https://bugs.kde.org/show_bug.cgi?id=371497

--- Comment #8 from Jan Grulich  ---
Commits for reference:
[1] -
https://cgit.kde.org/powerdevil.git/commit/?id=e41eedbec274048b849c6705a761f85af4a31be5

[2] -
https://cgit.kde.org/kservice.git/commit/?id=19ecb443b39833ac0c6ecc64eb3c03fdab94ec15

[3] -
https://cgit.kde.org/kinit.git/commit/?id=610bcdfd266518638df93147f26eb9c19a47fb33

[4] -
https://cgit.kde.org/kio.git/commit/?id=303aa887d870972fa2c4dfffa104f92070949083

[5] -
https://cgit.kde.org/kio.git/commit/?id=1e6412cebf140cdc7a165fd49ce64c859e572f71

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Jan Grulich]

https://bugs.kde.org/show_bug.cgi?id=371497

Jan Grulich  changed:

   What|Removed |Added

 Status|CONFIRMED   |RESOLVED
 Resolution|--- |FIXED

--- Comment #7 from Jan Grulich  ---
Already implemented and upstreamed. Will be available with Plasma 5.9 and KDE
frameworks 5.30.

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Jan Grulich]

https://bugs.kde.org/show_bug.cgi?id=371497

--- Comment #6 from Jan Grulich  ---
Do you think this should go into advanced options, same as "run in terminal"
option? Or should it be rather more visible to the user?

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Kai Uwe Broulik]

https://bugs.kde.org/show_bug.cgi?id=371497

Kai Uwe Broulik  changed:

   What|Removed |Added

 CC||fa...@kde.org

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Kai Uwe Broulik]

https://bugs.kde.org/show_bug.cgi?id=371497

Kai Uwe Broulik  changed:

   What|Removed |Added

 CC||k...@privat.broulik.de
 Status|UNCONFIRMED |CONFIRMED
 Ever confirmed|0   |1

--- Comment #5 from Kai Uwe Broulik  ---
I think this should be in KRun/KIO so you can configure an application to run
on a discrete GPU just like you can configure it to run in terminal, then all
places would honor this setting out of the box.

Also, maybe KRun needs another flag where an application can explicitly request
running on discrete GPU, when we have a "Run on discrete" option in places.

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Simon Andric]

https://bugs.kde.org/show_bug.cgi?id=371497

Simon Andric  changed:

   What|Removed |Added

 CC||simonandr...@gmail.com

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Jan Grulich]

https://bugs.kde.org/show_bug.cgi?id=371497

Jan Grulich  changed:

   What|Removed |Added

 CC||jgrul...@redhat.com

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[David Edmundson]

https://bugs.kde.org/show_bug.cgi?id=371497

David Edmundson  changed:

   What|Removed |Added

 Status|NEEDSINFO   |UNCONFIRMED
 Resolution|WAITINGFORINFO  |---

--- Comment #4 from David Edmundson  ---
thanks

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Paul Konecny via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=371497

--- Comment #3 from Paul Konecny  ---
A little correction to my initial post. 
Kwin has to be in Xrender mode because PRIME needs a compositor. If you
deactivate it or switch to OpenGL you get a black window. 

My suggested procedure for launching would be: 
1. Right-click application (menu entry or other shortcut i.e. desktop launcher) 
2. Select "Run on discrete GPU" 
4. Check if kwin's enabled or in which compositing mode it is running (i.e.  to
OpenGL 3.1)
3. Switch kwin to Xrender mode, set DRI_PRIME=1 and launch
5. End application
6. Restore kwin to previous compositor mode

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[Paul Konecny via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=371497

--- Comment #2 from Paul Konecny  ---
I'd say I generally choose on a per app basis. I mostly use this for kdenlive
(with movit) and Steam games. 
Sometimes I have to switch to a per-execution basis when debugging though. I
once had to investigate a crash that originated in Qt's handling of DRI_PRIME.

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[plasmashell] [Bug 371497] Wishlist: Add option to launch application on discrete GPU

[David Edmundson via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=371497

David Edmundson  changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEEDSINFO
 Resolution|--- |WAITINGFORINFO

--- Comment #1 from David Edmundson  ---
Is choosing which card an app should run on something you do on a per-app basis
or a per-execution basis?

i.e would you *always* want to start Doom3 on the discrete card, or just
sometimes?

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