[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #25 from Thom --- AFAIK the patch is in since 4.7-RC4. Could it be that your version is older ? see also: https://github.com/torvalds/linux/commit/9ef8537e68941d858924a3eacee5a1945767cbab -- You are receiving this mail because:

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #24 from Gilbert Smith --- (In reply to Thom from comment #21) > Gilbert, same with me, also ubuntu 14.04 -> 16.04. > > The patch is already in the 4.7+ kernel tree so it should be in the first > 4.7 kernel (pre) release. > > I'm

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #23 from Gilbert Smith --- (In reply to Thom from comment #21) > Gilbert, same with me, also ubuntu 14.04 -> 16.04. > > The patch is already in the 4.7+ kernel tree so it should be in the first > 4.7 kernel (pre) release. > > I'm

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #22 from Thom --- addendum: https://github.com/torvalds/linux/commit/9ef8537e68941d858924a3eacee5a1945767cbab i.e. kernel 4.7-rc4 and up -- You are receiving this mail because: You are the assignee for the bug. --

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #21 from Thom --- Gilbert, same with me, also ubuntu 14.04 -> 16.04. The patch is already in the 4.7+ kernel tree so it should be in the first 4.7 kernel (pre) release. I'm not familiar with ubuntu's kernel policy and I also don't

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #20 from Gilbert Smith --- I have this same problem with an upgrade from 14.04 LTS to 16.04 LTS Ubuntu - Linux DV7 4.6.4-040604-generic #201607111332 SMP Mon Jul 11 17:34:50 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux 01:05.0 VGA

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 Thom changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #18 from Thom --- (In reply to Chris Bainbridge from comment #17) > if you don't get a reply here you could try emailing Christian > König and asking. I did, and Christian responded almost instantly, so I will be busy for quite a

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #17 from Chris Bainbridge --- Christian König posted an explanation of the PLL divider values at https://bugzilla.kernel.org/show_bug.cgi?id=91861#c12 (another "no screen after 3.15" bug report) The various fixes adjust the divider

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #16 from Thom --- fb lower than 140 is possible, my current stock kernel 3.13.0-86 works flawless [drm:radeon_compute_pll_avivo], 6928, pll dividers - fb: 125.8 ref: 2, post 13 (sigh) I just wish I understood why some modes work and

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #15 from Thom --- ok, i created a variation of the one liner patch that works without reverting any of the existing code: This patch prevents fb from going lower than 140 Preventing noise/snow on display . (for RS780M +

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #14 from Thom --- (In reply to Chris Bainbridge from comment #13) > This might be https://bugzilla.kernel.org/show_bug.cgi?id=75241 - there is > one line patch there from Christian K�nig but it doesn't look like it was > ever

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 Chris Bainbridge changed: What|Removed |Added CC||chris.bainbridge at gmail.com ---

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #12 from Thom --- (In reply to Chris Bainbridge from comment #8) > So suggest enabling debug log and compare those two lines from a working and > non-working kernel. Done (see previous message) :-) > It should also be trivial to

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #11 from Thom --- ok, some results: PLL-readings on good working compilations: 3.15.0-rc1-00303-g6e66d5d [drm:radeon_compute_pll_avivo] 69300 - 6949, pll dividers - fb: 165.0 ref: 2, post 17 3.15.0-rc2-00042-g4d0fa8a

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #10 from Thom --- Hmmm I'm afraid I have to enable "debug boot parapeters" in menuconfig. What git command do I use to get a specific kernelversion source lined up so I can recompile selected kernels for debug ? -- You are

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #9 from Thom --- (In reply to Chris Bainbridge from comment #8) > This is not correct. The 77/69 does not imply a linear ordering because of > forks: > Trust git ;-) Thanks for the update, that explains everything. I hardly know

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #8 from Chris Bainbridge --- > As far as I understand; 3.15.0-rc2-00077-g76e7745 is a later revision (good) > than 3.15.0-rc2-00069-g1aae31c (bad) This is not correct. The 77/69 does not imply a linear ordering because of forks: $

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #7 from Thom --- Ok, I did my first bisect, it worked out well but I encountered something that puzzles me a bit. Here is the last part of the bisect: 3.15.0-rc3-00725-g1465967 bad Bisecting: 658 revisions left to test after this

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #6 from Felix Schwarz --- (In reply to Thom from comment #5) > I don't know what "git bisect" is but eager to learn. "bisecting" is a way to find out which commit caused a specific regression. This involves compiling the linux

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #5 from Thom --- I can confirm this bug: Laptop HP 6735s 2xTurion + RS780M videochip I happen to have the exact same artefacts with any kernelversion higher than 3.13 It affects the buildin LVDS but NOT the VGA-output. I tested

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #4 from Alex Deucher --- Possibly related to https://bugzilla.kernel.org/show_bug.cgi?id=83461 -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML attachment was

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 Alex Deucher changed: What|Removed |Added Component|Drivers/Gallium/r600|DRM/Radeon Version|git

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #3 from lockheed --- @Michel Dänzer, I can contribute bug as detailed as I can, but I don't think I have the necessary combination of time and skill to "bisect" a kernel. However, since I gave the specific kernel version which the

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #2 from Christian König --- Most likely another problem caused by the PLL rework. I would guess it's one of those patches. -- You are receiving this mail because: You are the assignee for the bug. -- next part

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 --- Comment #1 from Michel Dänzer --- Can you isolate the kernel change which introduced the problem with git bisect? -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 lockheed changed: What|Removed |Added Priority|medium |high URL|

[Bug 87682] Horizontal lines in radeon driver on kernel 3.15 and upwards

https://bugs.freedesktop.org/show_bug.cgi?id=87682 Bug ID: 87682 Summary: Horizontal lines in radeon driver on kernel 3.15 and upwards Product: Mesa Version: git Hardware: x86-64 (AMD64) OS: Linux (All)