[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 Joel Sasschanged: What|Removed |Added Resolution|--- |FIXED Status|NEW |RESOLVED --- Comment #16 from Joel Sass --- Whoops. Changing to resolved/fixed. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #15 from Joel Sass--- This bug has been fixed in this branch: h https://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-fixes-4.17 brightness appears as normal after building the kernel from git. Good job, and thanks. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #14 from Joel Sass--- Sorry, I completely forgot that I was using a custom kernel. I downloaded it from here: https://github.com/M-Bab/linux-kernel-amdgpu-binaries and installed the .deb files directly. Here's the source: https://github.com/M-Bab/linux-kernel-amdgpu -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #13 from Harry Wentland--- Not sure exactly how that kernel is assembled but it contains the problematic code in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c. You should be able to simply delete the block for if (__is_lut_linear(...)) in amdgpu_dm_set_regamma_lut to fix this, if the patch doesn't straight-up apply. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #12 from Joel Sass--- Created attachment 139022 --> https://bugs.freedesktop.org/attachment.cgi?id=139022=edit I don't think this is the same file from 2.17. Sorry. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #11 from Joel Sass--- Okay, sadly, I wasn't clear about the kernel I was running. It's located here: https://github.com/M-Bab/linux-kernel-amdgpu and I installed the .deb created by the git contributor here: https://github.com/M-Bab/linux-kernel-amdgpu-binaries I downloaded the source listed in the first link I posted above, and it doesn't appear to have the same file structure you'd listed in your patch. I've attached amdgpu_dm_color.c to this bug. If you don't want to patch for this, I understand. I can see if I can speak to the person responsible for this repo. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #10 from Harry Wentland--- Created attachment 138814 --> https://bugs.freedesktop.org/attachment.cgi?id=138814=edit [PATCH] drm/amd/display: Don't program bypass on linear regamma LUT Does this fix things for you? -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 Michel Dänzerchanged: What|Removed |Added CC||harry.wentl...@amd.com --- Comment #9 from Michel Dänzer --- For DC developers: behind the scenes, brightness 1 means no-op/pass-through gamma LUT, lower brightness levels are simulated by modifying the gamma LUT accordingly. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #8 from Joel Sass--- $ uname -a Linux nope 4.16.0+ #1 SMP Mon Apr 2 15:52:14 CEST 2018 x86_64 x86_64 x86_64 GNU/Linux ~$ lsb_release -a LSB Version: core-9.20160110ubuntu0.2-amd64:core-9.20160110ubuntu0.2-noarch:security-9.20160110ubuntu0.2-amd64:security-9.20160110ubuntu0.2-noarch Distributor ID: Ubuntu Description:Ubuntu 16.04.4 LTS Release:16.04 Codename: xenial -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #7 from Joel Sass--- Created attachment 138809 --> https://bugs.freedesktop.org/attachment.cgi?id=138809=edit dmesg output with amdgpu.dc=1 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #5 from Joel Sass--- Created attachment 138807 --> https://bugs.freedesktop.org/attachment.cgi?id=138807=edit xrandr --verbose with amdgpu.dc=1 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #6 from Joel Sass--- Created attachment 138808 --> https://bugs.freedesktop.org/attachment.cgi?id=138808=edit Xorg.0.log with amdgpu.dc=1 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #4 from Joel Sass--- A fix I've found for the issue seems to be issueing an xrandr brightness command to each monitor output. EG: ~$ xrandr --output DP-5 --brightness .99 If brightness is set to 1, the monitor appears to lose some sort of rendering characteristic, not necessarily brightness - It's like color rendering or gamma correction change somehow. Simply changing the brightness a modicum seems to fix the issue. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #2 from Joel Sass--- Created attachment 138805 --> https://bugs.freedesktop.org/attachment.cgi?id=138805=edit Xorg.0.log with amdgpu.dc=0 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #3 from Joel Sass--- Created attachment 138806 --> https://bugs.freedesktop.org/attachment.cgi?id=138806=edit xrandr --verbose with amdgpu.dc=0 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 --- Comment #1 from Joel Sass--- Created attachment 138804 --> https://bugs.freedesktop.org/attachment.cgi?id=138804=edit dmesg output with amdgpu.dc=0 -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
[Bug 106006] Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default
https://bugs.freedesktop.org/show_bug.cgi?id=106006 Bug ID: 106006 Summary: Kernel 4.16.0+ switch amdgpu.dc=1 causes screen brightness set to 1 to be dimmed by default Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: sass.j...@gmail.com I'm noticing that the default screen brightness of my desktop when logged in is set to something beneath "1" when set to "1" with amdgpu.dc=1 switch in the kernel. Test to get to this point: * boot PC - (Grub screen brightness is "normal") * Set kernel value amdgpu.dc=1 and proceed with 4.16.0+ kernel boot - (kernel switches quiet and splash removed, brightness appears normal during boot process) * Lightdm display manager starts (brightness is still "normal") * Log in to any window manager, When X starts, the desktop is immediately darkened with what appears to be a high contrast setting. Looks like equivalent to manual setting I can't actually discern. It's not brightness, necessarily, but the net effect on the desktop is that everything is effectively darker. * I've tested this with Ubuntu's Unity desktop, and gnome-flashback (compiz and metacity), and it behaves the same. When amdgpu.dc=0 is set, desktop appears a normal level of brightness when logging in. It appears from the Xorg.0.log that the AMDGPU module isn't used for X, but brightness isn't affected. I'll include logs from amdgpu.dc=0 and amdgpu.dc=1. Let me know if you need any other logs. -- You are receiving this mail because: You are the assignee for the bug.___ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel