[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #116 from Alex Deucher --- (In reply to Norbert Pfeiler from comment #115) > I don’t think that’s it because I tried that with earlier kernel versions > (I > also hardcoded the dpcd in several places and that didn’t work). >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #115 from Norbert Pfeiler --- (In reply to Christian Aßfalg from comment #114) > Actually, for me on Arch it works with 4.1.4, too. I tried 4.2 RC5 as well > and that works too.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #114 from Christian Aßfalg --- Actually, for me on Arch it works with 4.1.4, too. I tried 4.2 RC5 as well and that works too. That's great! -- You are receiving this mail because: You are the assignee for the bug. --

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #113 from Alex Deucher --- (In reply to Paul Menzel from comment #112) > Could somebody please reference the corresponding commits, so it can be > checked, if they are marked to go into the stable Linux kernels?

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #112 from Paul Menzel --- (In reply to N.Leiten from comment #111) > At this point I see that problem was fixed with linux kernel 4.2.0-rc4. Thank you for checking this! Could somebody please reference the corresponding commits, so

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 N.Leiten changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Norbert Pfeiler changed: What|Removed |Added CC|

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #109 from Alex Deucher --- (In reply to N.Leiten from comment #108) > (In reply to Alex Deucher from comment #102) > > Created attachment 115802 [details] [review] [review] > > retry dpcd fetch > > > > Does this patch help? > > It

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #108 from N.Leiten --- (In reply to Alex Deucher from comment #102) > Created attachment 115802 [details] [review] > retry dpcd fetch > > Does this patch help? It didn't work for me, trying some other changes for now. -- You are

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #107 from Alex Deucher --- (In reply to Samir Ibradžić from comment #105) > Here is dmesg with 88, 93, 95 & 97 applied, it looks strange as non-zero > DPCD values are reported from beginning and they never change. I don't think

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #106 from Samir Ibradžić --- Created attachment 115838 --> https://bugs.freedesktop.org/attachment.cgi?id=115838=edit dmesg with debug patches from comments 88, 93, 95, 97 & 99 applied, without set_rx_power_state (In reply to

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #105 from Samir Ibradžić --- Created attachment 115837 --> https://bugs.freedesktop.org/attachment.cgi?id=115837=edit dmesg with debug patches from comments 88, 93, 95 & 97 applied (In reply to Alex Deucher from comment #97) >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #104 from Nicolas Werner --- (In reply to Alex Deucher from comment #102) > Created attachment 115802 [details] [review] > retry dpcd fetch > > Does this patch help? Yep, this one works! [2.869482] [drm] Initialized drm 1.1.0

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #103 from Nicolas Werner --- (In reply to Alex Deucher from comment #101) > Created attachment 115801 [details] [review] > leave panel power on all th time > > (In reply to Nicolas Werner from comment #98) > Does this patch help

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #102 from Alex Deucher --- Created attachment 115802 --> https://bugs.freedesktop.org/attachment.cgi?id=115802=edit retry dpcd fetch Does this patch help? -- You are receiving this mail because: You are the assignee for the bug.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #101 from Alex Deucher --- Created attachment 115801 --> https://bugs.freedesktop.org/attachment.cgi?id=115801=edit leave panel power on all th time (In reply to Nicolas Werner from comment #98) > [5.722365]

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #100 from Nicolas Werner --- (In reply to Alex Deucher from comment #99) > Created attachment 115786 [details] [review] > more debugging > > Does this patch help? Please include all the radeon related output. The > pointers are

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Alex Deucher changed: What|Removed |Added Attachment #115782|0 |1 is obsolete|

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #98 from Nicolas Werner --- (In reply to Alex Deucher from comment #97) > Created attachment 115782 [details] [review] > more debugging > > Can you attach your dmesg output with the attached patch? Please include > all the radeon

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Alex Deucher changed: What|Removed |Added Attachment #115780|0 |1 is obsolete|

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #96 from Nicolas Werner --- (In reply to Alex Deucher from comment #95) > Created attachment 115780 [details] [review] > add some debugging output > > Can you attach the dmesg output with the attached patch? Seems like we're

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Alex Deucher changed: What|Removed |Added Attachment #115774|0 |1 is obsolete|

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #94 from Nicolas Werner --- (In reply to Alex Deucher from comment #93) > Created attachment 115778 [details] [review] > debuging patch > > Your dpcd is indeed getting corrupted somehow. I can't see how though. The > attached

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #93 from Alex Deucher --- Created attachment 115778 --> https://bugs.freedesktop.org/attachment.cgi?id=115778=edit debuging patch Your dpcd is indeed getting corrupted somehow. I can't see how though. The attached patch (please

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #92 from Nicolas Werner --- I accidently truncated the dmesg output, here's everything containing drm: [2.430644] [drm] Initialized drm 1.1.0 20060810 [2.461050] [drm] radeon kernel modesetting enabled. [2.467555] fb:

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #91 from Nicolas Werner --- (In reply to Alex Deucher from comment #90) > (In reply to Nicolas Werner from comment #89) > > (In reply to Alex Deucher from comment #88) > > > Created attachment 115774 [details] [review] [review]

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #90 from Alex Deucher --- (In reply to Nicolas Werner from comment #89) > (In reply to Alex Deucher from comment #88) > > Created attachment 115774 [details] [review] [review] > > add some debugging output > > > > Can you attach

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #89 from Nicolas Werner --- (In reply to Alex Deucher from comment #88) > Created attachment 115774 [details] [review] > add some debugging output > > Can you attach your dmesg output with this patch attached? It should help >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #88 from Alex Deucher --- Created attachment 115774 --> https://bugs.freedesktop.org/attachment.cgi?id=115774=edit add some debugging output Can you attach your dmesg output with this patch attached? It should help narrow down

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #87 from Samir Ibradžić --- Well, forcing radeon_dp_get_dp_lane_number to return 2 did not help in my case (https://bugs.freedesktop.org/show_bug.cgi?id=90320) which means the bugs aren't necessarily related :| My (unpatched) dmesg

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #86 from N.Leiten --- (In reply to Alex Deucher from comment #85) > (In reply to N.Leiten from comment #84) > > (In reply to Alex Deucher from comment #83) > > > Created attachment 115699 [details] [review] [review] [review] > > >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #85 from Alex Deucher --- (In reply to N.Leiten from comment #84) > (In reply to Alex Deucher from comment #83) > > Created attachment 115699 [details] [review] [review] > > possible fix > > > > Is the dpcd information always wrong

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #84 from N.Leiten --- (In reply to Alex Deucher from comment #83) > Created attachment 115699 [details] [review] > possible fix > > Is the dpcd information always wrong or just sometimes? If it's always > wrong, the attached patch

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #83 from Alex Deucher --- Created attachment 115699 --> https://bugs.freedesktop.org/attachment.cgi?id=115699=edit possible fix Is the dpcd information always wrong or just sometimes? If it's always wrong, the attached patch

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #82 from N.Leiten --- Yes, it seems this bug https://bugs.freedesktop.org/show_bug.cgi?id=90320 is connected with our BUG. As for this moment, no changes in SS and DPMS_ON/DPMS_OFF needed to get working display. It is only a matter

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #81 from Nicolas Werner --- I can confirm that hacking radeon_dp_get_dp_lane_number to return 2 does yield a working display (and acceleration), great find! -- You are receiving this mail because: You are the assignee for the bug.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #80 from N.Leiten --- For long time digging radeon drivers I got it working perfectly. As I mentioned above, the problem is in DP initialization. Somewhere in code DPCD get NULL'ed and function radeon_dp_get_dp_lane_number in

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #79 from N.Leiten --- (In reply to Alex Deucher from comment #78) > Please note that DP is not direct clocked. The link runs at either 1.62 or > 2.7 Ghz depending on the bandwidth requirements. Yes, thanks, I figured it out from

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #78 from Alex Deucher --- Please note that DP is not direct clocked. The link runs at either 1.62 or 2.7 Ghz depending on the bandwidth requirements. -- You are receiving this mail because: You are the assignee for the bug.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 N.Leiten changed: What|Removed |Added CC||nickleiten at gmail.com --- Comment #77 from

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #76 from Nicolas Werner --- Created attachment 115626 --> https://bugs.freedesktop.org/attachment.cgi?id=115626=edit dmesg drm debug kernel 3.18 I am also interested in providing help to fix this bug. I even tried to bisect it,

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #75 from N.Leiten --- Can anyone provide me with some devel tools to make research of this problem? I've already tried to play with delays in linux-4.0.1, tried drm-next with no success. At this point I have two variants - to

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #74 from Paul Menzel --- (In reply to Alex Deucher from comment #73) > (In reply to Benjamin from comment #72) > > I'm having the same issue, but it seems to be getting worse with newer > > kernels. I was able to do the

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #73 from Alex Deucher --- (In reply to Benjamin from comment #72) > I'm having the same issue, but it seems to be getting worse with newer > kernels. I was able to do the suspend/resume trick to get a working screen, > but this seems

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #72 from Benjamin --- I'm having the same issue, but it seems to be getting worse with newer kernels. I was able to do the suspend/resume trick to get a working screen, but this seems to have stopped working with kernel 3.16 and

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #71 from Nicolas Werner --- Created attachment 109638 --> https://bugs.freedesktop.org/attachment.cgi?id=109638=edit dmesg with drm/radeon: add locking around atombios scratch space usage (In reply to Alex Deucher from comment

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #70 from Alex Deucher --- (In reply to Nicolas Werner from comment #69) > > I also have the same problem. (same notebook, so not surprising) > > I tried everything you recommended (in comment #65), in order, nothing > helps. Any

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #69 from Nicolas Werner --- (In reply to Alex Deucher from comment #65) > *snip* > > In reply to Christian Aßfalg from comment #63) > > I think / guess that I am having the same issues. I've got the same laptop, > > running Arch

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #68 from Florentin Raud --- I also had problem with this laptop. I fixed it by enabling CSM in the BIOS. Here is a horrible picture of the bios setting in question: imgur.com/4p6ziEo I had the issue with mint 16/17 The screen was

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #67 from Christian A?falg --- @comment65 Thanks for those hints. Trying that will take a couple of days. I need to figure out how to compile kernel modules in arch first. Is there a dev (you?) who lives in germany by any chance?

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #66 from Christian A?falg --- Well, turns out that I may have said that too soon. ;) Gnome does not work anymore (gnome-session quits right after login), that may be an issue with gnome 3.14 and catalyst, not 100% sure. For some

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #65 from Alex Deucher --- (In reply to Christian A?falg from comment #63) > I think / guess that I am having the same issues. I've got the same laptop, > running Arch Linux. Mostly, I've been using the proprietary catalyst driver, >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #64 from Paul Menzel --- (In reply to Christian A?falg from comment #63) > I think / guess that I am having the same issues. I've got the same laptop, > running Arch Linux. Mostly, I've been using the proprietary catalyst driver, >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #63 from Christian A?falg --- I think / guess that I am having the same issues. I've got the same laptop, running Arch Linux. Mostly, I've been using the proprietary catalyst driver, since I never got the free driver working. The

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #62 from Paul Menzel --- I forgot to thank you for all your help and it makes me sad that I had to come to the conclusion. -- You are receiving this mail because: You are the assignee for the bug. -- next part

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #61 from Paul Menzel --- I tried to finally get a usable laptop by using FGLRX, but neither 13.12 nor 14.1~beta1.3-1 worked with my Debian installation. That means, GNU/Linux is unusable with this AMD based laptop and, jugdging from

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Paul Menzel changed: What|Removed |Added Summary|Asus U38N: Black screen |Asus U38N: Black screen

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #60 from Paul Menzel --- Just an update that I get the same behavior with Dave?s drm-fixes branch, which has Linux 3.14-rc1 included. -- You are receiving this mail because: You are the assignee for the bug. -- next

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #59 from Paul Menzel --- One other though, could you talk with your appartment to get you an Asus U38N-C4010 laptop so you can work with it (probably quicker than relying on and relaying stuff to me) and so you also have it in your

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #58 from Paul Menzel --- Created attachment 93164 --> https://bugs.freedesktop.org/attachment.cgi?id=93164=edit Linux kernel log 3.13 with patch from previous comment (200 ?s) after xrandr --off/--auto cycle Display worked after

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #57 from Paul Menzel --- Created attachment 93163 --> https://bugs.freedesktop.org/attachment.cgi?id=93163=edit Linux kernel log 3.13 with patch from previous comment (200 ?s) Same behavior, backlight turned on but everything was

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #56 from Paul Menzel --- In the Linux kernel log after the xrandr cycle and a working display afterward, the following is shown, which is not shown during start-up. Feb 1 09:46:31 my_asus_u38n_system kernel: [ 86.286840]

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #55 from Paul Menzel --- Changing the 400 ?s to 800 ?s and 400 ?s did not change anything. diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 676ddf8..3e533bb 100644 ---

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #54 from Alex Deucher --- I think you need to be a vesa member to download the DP specs. There may be some older copies floating around on the internet. They are also available to Xorg members if you wanted to become an Xorg

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #53 from Paul Menzel --- So where can I get the specifications about DisplayPort link training? Is it in [1]? [1] http://www.vesa.org/vesa-standards/free-standards/ -- You are receiving this mail because: You are the assignee for

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11, 3.12, 3.13

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Paul Menzel changed: What|Removed |Added Summary|Asus U38N: Black screen |Asus U38N: Black screen

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #52 from Paul Menzel --- Created attachment 93042 --> https://bugs.freedesktop.org/attachment.cgi?id=93042=edit `/var/log/kern.log` from 3.13 with debug and delay patch Here are the errors. [ 297.778990]

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #51 from Paul Menzel --- I tried Linux 3.13 with the patch below and I could not get the display to work at all with the following script. while true; do xrandr --output eDP --off && xrandr --output eDP --auto && sleep 4; done

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #50 from Paul Menzel --- That line was the same testing the same built Linux kernel a second time. [drm:radeon_fixup_lvds_native_mode], Native mode: 1920x1080-138780 It also took one xrandr off/auto cycle to get the display

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #49 from Paul Menzel --- With the debug patch applied to your 3.14-wip branch (based on 3.13-rc4), the following is printed by the Linux kernel. [ 12.005985] [drm:radeon_fixup_lvds_native_mode], Native mode: 1920x1080-138780

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #48 from Alex Deucher --- You might try adjusting the delays in radeon_dp_link_train() and the functions it calls. Some panels are really picky about the timing during the training sequence. -- You are receiving this mail because:

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #47 from Paul Menzel --- Looking at the panel/monitor CMN 1343, I found a list with more information [1]. Chi Mei Innolux N133HSE-EA1 Asus U38N(-C4010H) Asus Zenbook UX31A, UX32VD Clevo W230ST 1920x1080, IPS,

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #46 from Paul Menzel --- Current status is that I mostly get it to work after the first xrandr off/auto cycle, meaning 80 % of the cases. The other 19 % of the cases it takes longer and in 1 % it works right away. I still do not

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #45 from Paul Menzel --- Anything I should try/look at over the weekend? -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML attachment was scrubbed... URL:

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #44 from Alex Deucher --- (In reply to comment #43) > Would other tests like using a different modeline 1680x1050 be useful? Can > that be set on the Linux command line? Reading `/sbin/modinfo radeon` I > could not find the

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #43 from Paul Menzel --- Would other tests like using a different modeline 1680x1050 be useful? Can that be set on the Linux command line? Reading `/sbin/modinfo radeon` I could not find the parameter. -- You are receiving this

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #42 from Paul Menzel --- Do you still need the debugging output of the native(?) mode lines and want me to apply your patch and test it? -- You are receiving this mail because: You are the assignee for the bug. -- next

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 Alex Deucher changed: What|Removed |Added Attachment #92264|text/plain |image/jpeg mime type|

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #41 from Paul Menzel --- Created attachment 92264 --> https://bugs.freedesktop.org/attachment.cgi?id=92264=edit Picture of another wrong timing(?) This morning I noticed the same behavior with the same patch. commit

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #40 from Paul Menzel --- Created attachment 92262 --> https://bugs.freedesktop.org/attachment.cgi?id=92262=edit Picture of a wrong timing(?) With commit 7424173698775ad90a039d8e00cbee333de536ec Author: Alex Deucher Date: Tue

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #39 from Paul Menzel --- Once the display works, it seems to work always during consecutive off/on cycles. -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #38 from Paul Menzel --- Is there a way to look at the Windows driver to know what the timing should be? -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #37 from Paul Menzel --- (In reply to comment #36) > (In reply to comment #35) [?] > > I've also pushed a branch with some other DP related patches that might help > > if you want to try it: > >

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #36 from Paul Menzel --- (In reply to comment #35) > Created attachment 92230 [details] [review] > possible fix > > There's nothing in your logs indicating a link failure when setting up the > DP link. It seems like your panel is

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #35 from Alex Deucher --- Created attachment 92230 --> https://bugs.freedesktop.org/attachment.cgi?id=92230=edit possible fix There's nothing in your logs indicating a link failure when setting up the DP link. It seems like your

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #34 from Paul Menzel --- No idea, if it?ll give a clue, but often the display did not work even after turning it off and on more than five times. Blindly logging out again, which closes the X session, goes to tty1 and then back to

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #33 from Paul Menzel --- Only testing patch 2/2 also did not fix the issue. The display was just black and I had to do the `xrandr` dance to get it to work. -- You are receiving this mail because: You are the assignee for the bug.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #32 from Paul Menzel --- Applying both patches 1/2 and 2/2 did not help anything with the situation. I had to run `xrandr --output eDP --off` and `xrandr --output eDP --auto` three times to get the display to work. -- You are

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #31 from Paul Menzel --- Sorry, I missed the two patches. I?ll test them now. -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML attachment was scrubbed... URL:

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #30 from Alex Deucher --- Have you tested the patch in attachment 92172? Does it help at all? -- You are receiving this mail because: You are the assignee for the bug. -- next part -- An HTML attachment was

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #29 from Paul Menzel --- Do you want me to test something else or can we assume that no Linux kernel patch is needed and the display has to be dealt with? As commented, turning it off and on does not always get it to work. -- You

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #28 from Paul Menzel --- I was able to get the display to work with Debian?s Linux kernel 3.12.6 (with none of your patches applied) using `xrandr --output eDP --off` and `xrandr --output eDP --auto`. So it looks like no patch is

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #27 from Paul Menzel --- So turning the display off and on with xrandr or xset does not always work even with the patched Linux kernel. -- You are receiving this mail because: You are the assignee for the bug. -- next

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #26 from Alex Deucher --- (In reply to comment #25) > Alex, thank you for the quick replies! > > When doing the tests, should I save certain logs? Do you want me to pass > special debug parameters? I don't need any logs at the

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #25 from Paul Menzel --- Alex, thank you for the quick replies! When doing the tests, should I save certain logs? Do you want me to pass special debug parameters? -- You are receiving this mail because: You are the assignee for

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #24 from Alex Deucher --- (In reply to comment #23) > Turning the display off and on again, the display works fine. > > $ xrandr --output eDP --off > $ xrandr --output eDP --auto Does that work without patches or only with

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #23 from Paul Menzel --- Turning the display off and on again, the display works fine. $ xrandr --output eDP --off $ xrandr --output eDP --auto -- You are receiving this mail because: You are the assignee for the bug.

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #22 from Alex Deucher --- Does forcing a dpms cycle help? e.g., sleep 5; xset dpms force off and then after the monitor blanks, move the mouse to trigger a wake up. -- You are receiving this mail because: You are the assignee

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #21 from Alex Deucher --- (In reply to comment #20) > I guess I spoke too soon. :( Now starting the system a second time, the > display is black again with the backlight enabled. I was able to login > blindly into GNOME using GDM, so

[Bug 73530] Asus U38N: Black screen with Radeon driver in Linux 3.10, 3.11 and 3.12

https://bugs.freedesktop.org/show_bug.cgi?id=73530 --- Comment #20 from Paul Menzel --- I guess I spoke too soon. :( Now starting the system a second time, the display is black again with the backlight enabled. I was able to login blindly into GNOME using GDM, so X is running. I?ll post the log

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