[18.04] GLK hang after a while
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
In Progress
|
Medium
|
Seth Forshee | ||
Bionic |
Fix Released
|
Medium
|
Seth Forshee | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
SRU Justification
[Impact]
i915 lacks information about the glk_dmc_ver1_04.bin firmware file in
modinfo, so it is not included in the initrd along with the i915 driver.
Thus the firmware does not get loaded. Loading the firmware is said to
prevent a hang.
In addition to that, this also causes GLK's HDMI audio codec stops
working after S3.
[Fix]
Add a MODULE_FIRMWARE statement for the firmware.
This information is required to let initramfs-tools includes the
firmware.
[Test Case]
Without the firmware there will be a "Direct firmware load for
i915/glk_
firmware there is no such message.
I can confirm the GLK HDMI audio issue is gone when firmware is loaded.
[Regression Potential]
Minimal. Will only be loaded by i915 for specific hardware, and loading
the firmware is known to fix a hang.
---
Description:
Platform information:
Label: GLK02SDP
Processor: Silver N5000
Bios: GELKRVPA.
OS: Ubuntu 18.04
Kernel: 4.15.0-10-generic
Details:
Power on, and enter into the system;
After a period, sometimes about 20 minutes, sometimes 1 hour, the machine will hang.
We can only power it off manually, then power on to enter into OS again.
CVE References
information type: | Proprietary → Public |
Changed in linux (Ubuntu Bionic): | |
assignee: | nobody → Seth Forshee (sforshee) |
importance: | Undecided → Medium |
status: | New → In Progress |
description: | updated |
tags: | added: patch |
Changed in intel: | |
status: | Incomplete → Triaged |
no longer affects: | intel |
description: | updated |
Changed in linux (Ubuntu Bionic): | |
status: | In Progress → Fix Committed |
Changed in linux-oem (Ubuntu Bionic): | |
status: | New → Fix Committed |
This should be a regression issue. We don't find this in 17.10.