[Bug 111095] Backlight flicker after suspend on certain Intel CherryTrail tablets

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111095

--- Comment #14 from russianneuromancer at ya.ru ---
I tried to use intel_rug but it doesn't read registers for some reason.

intel-gpu-tools package from Ubuntu repository, version 1.2.2:

~$ sudo intel_reg read 0x180000:0x61250 0x180000:0x61254 0x180000:0x61350
0x180000:0x61354
Error: /usr/share/intel-gpu-tools/registers/gen7_other.txt:1: ('RCS_MODE_GEN7',
'0x0000229c', '')
Error: /usr/share/intel-gpu-tools/registers/cherryview:10: gen7_other.txt
Warning: reading '/usr/share/intel-gpu-tools/registers/cherryview' failed.
Using builtin register spec.
                         (0x00180000:0x00061250): 0x00000000
                         (0x00180000:0x00061254): 0x00000000
                         (0x00180000:0x00061350): 0x00000000
                         (0x00180000:0x00061354): 0x00000000

Build from 1.2.4 tag of igt-gpu-tools git repository on freedesktop gitlab:

~/tools$ sudo ./intel_reg read 0x180000:0x61250 0x180000:0x61254
0x180000:0x61350 0x180000:0x61354
Error: /usr/local/share/igt-gpu-tools/registers/gen7_other.txt:1:
('RCS_MODE_GEN7', '0x0000229c', '')
Error: /usr/local/share/igt-gpu-tools/registers/cherryview:10: gen7_other.txt
Warning: reading '/usr/local/share/igt-gpu-tools/registers/cherryview' failed.
Using builtin register spec.
                         (0x00180000:0x00061250): 0x00000000
                         (0x00180000:0x00061254): 0x00000000
                         (0x00180000:0x00061350): 0x00000000
                         (0x00180000:0x00061354): 0x00000000

Not sure what I do wrong here.

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