Hello !
I am using Fedora 30 on my Lenovo laptop. The display driver is nouveau.
just recently, I can no longer play sound through hdmi. Test sound from the Sound Settings panel comes out very distorted stereo when I test “left”, no sound for “right”.
internal speaker works just fine.
reverted back to 5.3.8 kernel - all is well !
lspci
VGA compatible controller: NVIDIA Corporation GM107GLM [Quadro M1000M] (rev a2)
messages with 5.3.16 looks suspicious
Dec 23 17:53:26 tardis2 kernel: [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on minor 0
Dec 23 18:32:02 tardis2 kernel: nouveau 0000:01:00.0: devinit: 0x00006878[0]: script needs OR link
Dec 23 18:32:03 tardis2 kernel: WARNING: CPU: 1 PID: 13427 at drivers/gpu/drm/nouveau/nvif/vmm.c:68 nvif_vmm_put.cold+0xc/0x13 [nouveau]
Dec 23 18:32:03 tardis2 kernel: intel_cstate cfg80211 thinkpad_acpi intel_uncore intel_rapl_perf snd_timer mei_me rtsx_pci_ms ledtrig_audio joydev intel_wmi_thunderbolt wmi_bmof memstick mei intel_pch_thermal snd i2c_i801 soundcore rfkill binfmt_misc ip_tables dm_crypt nouveau rtsx_pci_sdmmc mxm_wmi crct10dif_pclmul i2c_algo_bit mmc_core drm_kms_helper crc32_pclmul ttm crc32c_intel drm e1000e ghash_clmulni_intel rtsx_pci serio_raw wmi video fuse
Dec 23 18:32:03 tardis2 kernel: Workqueue: events nouveau_cli_work [nouveau]
Dec 23 18:32:03 tardis2 kernel: RIP: 0010:nvif_vmm_put.cold+0xc/0x13 [nouveau]
Dec 23 18:32:03 tardis2 kernel: nouveau_vma_del+0x70/0xc0 [nouveau]
Dec 23 18:32:03 tardis2 kernel: nouveau_gem_object_delete_work+0x36/0x60 [nouveau]
Dec 23 18:32:03 tardis2 kernel: nouveau_cli_work+0xcc/0x110 [nouveau]
Graphics overall seem to work with 5.3.16 …
another machine with F30 / 5.3.16 but intel chip
lspci
VGA compatible controller: Intel Corporation UHD Graphics 605 (rev 03)
works just fine -
ideas ?
Michael