Verified by Alex Tu. ** Tags added: verification-done-bionic
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem in Ubuntu. https://bugs.launchpad.net/bugs/1760545 Title: [18.04] GLK hang after a while Status in linux package in Ubuntu: In Progress Status in linux-oem package in Ubuntu: New Status in linux source package in Bionic: Fix Committed Status in linux-oem source package in Bionic: Fix Committed 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_dmc_ver1_04.bin failed with error -2" line in dmesg. With the 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.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. We can only power it off manually, then power on to enter into OS again. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1760545/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
