Bug 1655235 - DRI_PRIME=1 stopped working after upgrade to kernel 4.19.X
Summary: DRI_PRIME=1 stopped working after upgrade to kernel 4.19.X
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 28
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2018-12-01 16:59 UTC by Petr Bartos
Modified: 2018-12-11 18:05 UTC (History)
16 users (show)

Fixed In Version:
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Clone Of:
Last Closed: 2018-12-11 18:05:11 UTC
Type: Bug

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Description Petr Bartos 2018-12-01 16:59:13 UTC
Description of problem:

After upgrade to kernel 4.19.X DRI_PRIME=1 stopped working

How reproducible:

Steps to Reproduce:
1. Run "DRI_PRIME=1 glxinfo"

Actual results:

Info with integrated GPU is printed

Expected results:

Info with discrete GPU should be printed

Additional info:

I am using ntb with discrete Radeon R5 M240. It was working with previous kernel versions. Now I am back to kernel 4.16.11 which can be installed from repository (along with actual 4.19.5) and discrete GPU is working there.

Comment 1 Petr Bartos 2018-12-11 18:05:11 UTC
It is working again on 4.19.7

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