Comment 7 for bug 1871418

i taked diff bettween "modinfo i915" in kernel 5.4.0.26 and 5.3.0.45:
how can i tested more things?
or how can i roll back each file for find buggy file?

1c1
< filename: /lib/modules/5.3.0-45-generic/kernel/drivers/gpu/drm/i915/i915.ko
---
> filename: /lib/modules/5.4.0-28-generic/kernel/drivers/gpu/drm/i915/i915.ko
12,17c12,18
< firmware: i915/icl_guc_32.0.3.bin
< firmware: i915/glk_guc_32.0.3.bin
< firmware: i915/kbl_guc_32.0.3.bin
< firmware: i915/bxt_guc_32.0.3.bin
< firmware: i915/skl_guc_32.0.3.bin
< firmware: i915/icl_huc_ver8_4_3238.bin
---
> firmware: i915/tgl_dmc_ver2_04.bin
> firmware: i915/skl_huc_ver01_07_1398.bin
> firmware: i915/skl_guc_33.0.0.bin
> firmware: i915/bxt_huc_ver01_8_2893.bin
> firmware: i915/bxt_guc_33.0.0.bin
> firmware: i915/kbl_huc_ver02_00_1810.bin
> firmware: i915/kbl_guc_33.0.0.bin
18a20
> firmware: i915/glk_guc_33.0.0.bin
20,22c22,32
< firmware: i915/bxt_huc_ver01_8_2893.bin
< firmware: i915/skl_huc_ver01_07_1398.bin
< srcversion: 2903CEDCE67281B4CEEA2B9
---
> firmware: i915/kbl_guc_33.0.0.bin
> firmware: i915/icl_huc_ver8_4_3238.bin
> firmware: i915/icl_guc_33.0.0.bin
> srcversion: 8563B779126B3B4CAB03689
> alias: pci:v00008086d00009A78sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A70sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A68sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A60sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A59sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A40sv*sd*bc03sc*i*
> alias: pci:v00008086d00009A49sv*sd*bc03sc*i*
289c299
< depends: drm,drm_kms_helper,video,i2c-algo-bit
---
> depends: drm_kms_helper,drm,video,i2c-algo-bit
293c303
< vermagic: 5.3.0-45-generic SMP mod_unload
---
> vermagic: 5.4.0-28-generic SMP mod_unload
296c306

355c365
< parm: enable_dpcd_backlight:Enable support for DPCD backlight control (default:false) (bool)
---
> parm: enable_dpcd_backlight:Enable support for DPCD backlight control(-1=use per-VBT LFP backlight type setting [default], 0=disabled, 1=enabled) (int)