Bug 1391045 - Dell Precision 7710 hybrid graphics failure
Summary: Dell Precision 7710 hybrid graphics failure
Alias: None
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati
Version: 25
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: X/OpenGL Maintenance List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2016-11-02 13:22 UTC by Didier
Modified: 2017-12-12 10:42 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2017-12-12 10:42:10 UTC
Type: Bug

Attachments (Terms of Use)
dmidecode (34.27 KB, text/plain)
2016-11-02 13:42 UTC, Didier
no flags Details
dmesg (100.79 KB, text/plain)
2016-11-02 13:42 UTC, Didier
no flags Details
lspci (1.70 KB, text/plain)
2016-11-02 13:43 UTC, Didier
no flags Details
lsusb (541 bytes, text/plain)
2016-11-02 13:43 UTC, Didier
no flags Details
lsmod (4.78 KB, text/plain)
2016-11-02 13:44 UTC, Didier
no flags Details
4.9.0 i915 oops (5.07 KB, text/plain)
2016-11-02 13:55 UTC, Didier
no flags Details

Description Didier 2016-11-02 13:22:38 UTC
See bug 1357383#c9 .

Fairly recent high-end Dell Precision 7710 (latest BIOS 1.8.3 10/2016) :
- LCD : 17.3" UHD 3840x2160
- IGP : Intel Xeon E3-1545M (Intel Iris Pro P580)
- DGP : AMD FirePro W7170M (Radeon R9 285) , GCN 1.2

WRT https://fedoraproject.org/wiki/Test_Day:2016-10-26_BetterSwitchableGraphicsSupport , downloaded and ran Fedora-Workstation-Live-x86_64-25-20161026.n.0.iso (from https://www.happyassassin.net/nightlies.html).

Experiencing the same issues as with almost every F24/kernel incantation :

- With hybrid/switchable graphics enabled :
the system almost always locks up hard (black screen, no caps lock or num lock, no Alt-SysRq) when trying to suspend or when the screen saver (DPMS ?) is started.
This is with both i915 and amdgpu loaded (vgaswitcheroo), and with amdgpu blacklisted.

- With hybrid/switchable graphics disabled in the BIOS :
Screen locking usually works, suspending usually fails.

Other info :
* Tested with and without "dis_ucode_ldr" kernel parameter ;
* Unfortunately, it seems I am unable to setup kernel logging via USB serial console ;
* Willing to supply all kinds of info (ACPI dumps etc.), if instructed what & how.

Comment 1 Didier 2016-11-02 13:42:30 UTC
Created attachment 1216555 [details]

Comment 2 Didier 2016-11-02 13:42:59 UTC
Created attachment 1216556 [details]

Comment 3 Didier 2016-11-02 13:43:17 UTC
Created attachment 1216557 [details]

Comment 4 Didier 2016-11-02 13:43:41 UTC
Created attachment 1216558 [details]

Comment 5 Didier 2016-11-02 13:44:04 UTC
Created attachment 1216559 [details]

Comment 6 Didier 2016-11-02 13:55:14 UTC
Created attachment 1216573 [details]
4.9.0 i915 oops

Running F24 with kernel 4.9.0-0.rc2.git2.1.fc26.x86_64 (as requested in bug #1357383) in hybrid graphics mode yields a reproducible kernel oops before locking up a few seconds later.

The reproducible kernel oops is triggered by invoking "Blank screen" (Gnome > Settings > Power > Power Saving > Blank screen).

The oops seems identical to the one reported on LKML (https://lkml.org/lkml/2016/10/12/119), and for which a patch seems availabl (https://bugs.freedesktop.org/show_bug.cgi?id=98214 : "drm/i915: WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock)").

This oops prevents any hybrid graphics testing on this machine.

Any chance of integrating this patch in a Koji or COPR Fedora test kernel ?

Comment 7 Didier 2016-11-03 08:29:10 UTC
ABRT data posted in bug 1391380.

Comment 8 Fedora End Of Life 2017-11-16 19:33:56 UTC
This message is a reminder that Fedora 25 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
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Comment 9 Fedora End Of Life 2017-12-12 10:42:10 UTC
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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