$ modinfo -F firmware /lib/modules/$(uname
-r)/kernel/drivers/gpu/drm/i915/i915.ko
i915/bxt_dmc_ver1_07.bin
i915/skl_dmc_ver1_26.bin
i915/kbl_dmc_ver1_01.bin
i915/skl_guc_ver6_1.bin
i915/kbl_huc_ver02_00_1810.bin
i915/bxt_huc_ver01_07_1398.bin
i915/skl_huc_ver01_07_1398.bin
No glk_dmc file listed.
** Information type changed from Proprietary to Public
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu Bionic)
Assignee: (unassigned) => Seth Forshee (sforshee)
** Description changed:
+ 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.
+
+ Fix: Add a MODULE_FIRMWARE statement for the firmware.
+
+ Test Case: Without the firmware there will be a "Direct firmware load
+ for i915/glk_dmc_ver1_04.bin failed with error -2" line in dmesg. With
+ the firmware there is no such message.
+
+ 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.X64.0083.B30.1801162142
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.
+ 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.
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https://bugs.launchpad.net/bugs/1760545
Title:
[18.04] GLK hang after a while
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