nouveau - HDMI gives no more signal since 3.15 (optimus)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Linux |
Fix Released
|
Medium
|
|||
linux (Ubuntu) |
Fix Released
|
Medium
|
Tim Gardner | ||
Utopic |
Fix Released
|
Medium
|
Tim Gardner |
Bug Description
This week I tried HDMI again on my system, and noticed it was completely broken.
Got just no signal on my screen.
I knew it was working some months (and upgrades) ago.
After testing I found out the issue was introduced between kernel v3.14 and v3.15.
Situation:
Insert HDMI cable into my laptop, and no signal on the external display.
The dmesg fills with errors also:
[ 186.210622] nouveau E[ PDISP][
[ 186.210627] nouveau E[ PDISP][
[ 186.210634] nouveau E[ PDISP][
[ 186.210640] nouveau E[ PDISP][
etc.
After some git bisect playtime, I found out the following commit caused the issue:
https:/
So I went back to stable 3.16 (Ubuntu Utopic version), and did a git revert for that commit.
And yep, HDMI output was working again, and no more nouveau errors in dmesg.
My device:
[ 30.823267] nouveau [ DEVICE]
[ 30.823269] nouveau [ DEVICE]
[ 30.823270] nouveau [ DEVICE]
Laptop dell xps 15 l502x
So this can be fixed with just reverting this commit. Else this is an annoying regression in Utopic.
---
ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: GNOME
DistroRelease: Ubuntu 14.10
HibernationDevice: RESUME=
InstallationDate: Installed on 2011-07-14 (1177 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
MachineType: Dell Inc. Dell System XPS L502X
Package: linux (not installed)
ProcFB:
0 inteldrmfb
1 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.134
Tags: utopic
Uname: Linux 3.16.0-20-generic x86_64
UpgradeStatus: Upgraded to utopic on 2014-09-15 (18 days ago)
UserGroups: adm admin bacula cdrom dialout libvirtd lpadmin plugdev sambashare wireshark
_MarkForUpload: True
dmi.bios.date: 09/07/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A12
dmi.board.name: 0NJT03
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Dell System XPS L502X
dmi.sys.vendor: Dell Inc.
Changed in linux: | |
importance: | Unknown → Medium |
status: | Unknown → Confirmed |
Changed in linux (Ubuntu): | |
importance: | Low → Medium |
status: | New → Confirmed |
tags: | added: cherry-pick |
Changed in linux (Ubuntu): | |
status: | Confirmed → Triaged |
Changed in linux: | |
status: | Confirmed → Fix Released |
This week I tried HDMI again on my system, and noticed it was completely broken.
Got just no signal on my screen.
I knew it was working some months (and upgrades) ago.
After testing I found out the issue was introduced between kernel v3.14 and v3.15.
Situation:
Insert HDMI cable into my laptop, and no signal on the external display.
The dmesg fills with errors also: 0000:01: 00.0] INVALID_STATE [UNK08] chid 0 mthd 0x0080 data 0x00000000 0000:01: 00.0] Core: 0000:01: 00.0] 0x0084: 0x5dc34da1 -> 0x80000000 0000:01: 00.0] 0x0088: 0x00000000
[ 186.210622] nouveau E[ PDISP][
[ 186.210627] nouveau E[ PDISP][
[ 186.210634] nouveau E[ PDISP][
[ 186.210640] nouveau E[ PDISP][
etc.
After some git bisect playtime, I found out the following commit caused the issue: /git.kernel. org/cgit/ linux/kernel/ git/torvalds/ linux.git/ commit/ drivers/ gpu/drm/ nouveau? id=05c63c2ff23a 80b654d6c088ac3 ba21628db0173
https:/
So I went back to stable 3.16 (Ubuntu Utopic version), and did a git revert for that commit.
And yep, HDMI output was working again, and no more nouveau errors in dmesg.
My device: [0000:01: 00.0] BOOT0 : 0x0c1a00a1 [0000:01: 00.0] Chipset: GF108 (NVC1) [0000:01: 00.0] Family : NVC0
[ 30.823267] nouveau [ DEVICE]
[ 30.823269] nouveau [ DEVICE]
[ 30.823270] nouveau [ DEVICE]
Laptop dell xps 15 l502x