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commit bb354dfcfde7802d07cca074c66c40cc2ab11cf9
parent eacf9a4eca1edbe83e79acad5ff02d091598b826
Author: Leah Rowe <info@minifree.org>
Date:   Wed, 14 Sep 2016 21:20:51 +0100

docs/hcl/gm45_lcd: delete the page. dual-channel lvds panels now work

Diffstat:
docs/hcl/gm45_lcd.html | 366-------------------------------------------------------------------------------
docs/hcl/r400.html | 9---------
docs/hcl/t400.html | 9---------
docs/hcl/t500.html | 9---------
docs/install/r400_external.html | 9---------
docs/install/t400_external.html | 9---------
docs/install/t500_external.html | 9---------
7 files changed, 0 insertions(+), 420 deletions(-)

diff --git a/docs/hcl/gm45_lcd.html b/docs/hcl/gm45_lcd.html @@ -1,366 +0,0 @@ -<!DOCTYPE html> -<html> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1"> - - <style type="text/css"> - @import url('../css/main.css'); - </style> - - <title>LCD compatibility on GM45 laptops</title> -</head> - -<body> - - <div class="section"> - <h1 id="pagetop">LCD compatibility on GM45 laptops</h1> - - <p> - On the T400 and T500 (maybe others), some of the higher resolution panels - (e.g. 1440x900, 1680x1050, 1920x1200) fail in libreboot. - </p> - - <p> - <b>All X200/X200S/X200T LCD panels are believed to be compatible.</b> - </p> - - <p> - <a href="index.html">Back to previous index</a>. - </p> - </div> - - <div class="section"> - <h1>The problem</h1> - <p> - In some cases, backlight turns on during boot, sometimes not. In all cases, - no display is shown in GRUB, nor in GNU/Linux. - </p> - <h1> - Current workaround: - </h1> - <p> - Libreboot (git, and releases after 20150518) now automatically detect whether - to use single or dual link LVDS configuration. If you're using an older version, - use the instructions below. In practise, this means that you'll get a visual - display when booting GNU/Linux, but not in GRUB (payload). - </p> - - <p> - The i915 module in the Linux kernel also provides an option to set the LVDS link configuration. - i915.lvds_channel_mode:Specify LVDS channel mode (0=probe BIOS [default], 1=single-channel, 2=dual-channel) (int) - - from /sbin/modinfo i915 - use <b>i915.lvds_channel_mode=2</b> as a kernel option in grub.cfg. - </p> - </div> - - <div class="section"> - <h1>Differences in dmesg (kernel parameter added: )</h1> - <p> - <a href="https://01.org/linuxgraphics/documentation/how-report-bugs">https://01.org/linuxgraphics/documentation/how-report-bugs</a> - </p> - <p> - These panels all work in the original firmware, so the idea is to see what differences there are in how coreboot handles them. - </p> - <p> - <a href="http://www.coreboot.org/pipermail/coreboot/attachments/20150712/d2e214bb/attachment-0002.txt">dmesg with coreboot-libre</a> (coreboot) - - See: <i>[drm:intel_lvds_init] detected single-link lvds configuration</i> - </p> - <p> - <a href="http://www.coreboot.org/pipermail/coreboot/attachments/20150712/d2e214bb/attachment-0003.txt">dmesg with lenovobios</a> (lenovobios) - - For the same line, it says dual-channel lvds configuration. - </p> - </div> - - <div class="section"> - - <h2 id="edid">EDID</h2> - - <p> - One T500 had a screen (1920x1200) that is currently incompatible. Working to fix it. EDID: - </p> -<pre> -user@user-ThinkPad-T500:~/Desktop$ sudo i2cdump -y 2 0x50 -No size specified (using byte-data access) - 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef -00: XX ff ff ff ff ff ff 00 30 ae 55 40 00 00 00 00 X.......0?U@.... -10: 00 11 01 03 80 21 15 78 ea ba 70 98 59 52 8c 28 .????!?x??p?YR?( -20: 25 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 %PT...?????????? -30: 01 01 01 01 01 01 e7 3a 80 8c 70 b0 14 40 1e 50 ???????:??p??@?P -40: 24 00 4b cf 10 00 00 19 16 31 80 8c 70 b0 14 40 $.K??..??1??p??@ -50: 1e 50 24 00 4b cf 10 00 00 19 00 00 00 0f 00 d1 ?P$.K??..?...?.? -60: 0a 32 d1 0a 28 11 01 00 32 0c 00 00 00 00 00 fe ?2??(??.2?.....? -70: 00 4c 50 31 35 34 57 55 31 2d 54 4c 42 31 00 9a .LP154WU1-TLB1.? -80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -</pre> - <p> - What happens: backlight turns on at boot, then turns off. At no point is there - a working visual display. - </p> - - <p> - Another incompatible screen (EDID) 1680 x 1050 with the same issue: - </p> -<pre> -EDID: -00 ff ff ff ff ff ff 00 30 ae 53 40 00 00 00 00 -00 11 01 03 80 21 15 78 ea cd 75 91 55 4f 8b 26 -21 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 -01 01 01 01 01 01 a8 2f 90 e0 60 1a 10 40 20 40 -13 00 4b cf 10 00 00 19 b7 27 90 e0 60 1a 10 40 -20 40 13 00 4b cf 10 00 00 19 00 00 00 0f 00 b3 -0a 32 b3 0a 28 14 01 00 4c a3 50 33 00 00 00 fe -00 4c 54 4e 31 35 34 50 33 2d 4c 30 32 0a 00 7e -Extracted contents: -header: 00 ff ff ff ff ff ff 00 -serial number: 30 ae 53 40 00 00 00 00 00 11 -version: 01 03 -basic params: 80 21 15 78 ea -chroma info: cd 75 91 55 4f 8b 26 21 50 54 -established: 00 00 00 -standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 -descriptor 1: a8 2f 90 e0 60 1a 10 40 20 40 13 00 4b cf 10 00 00 19 -descriptor 2: b7 27 90 e0 60 1a 10 40 20 40 13 00 4b cf 10 00 00 19 -descriptor 3: 00 00 00 0f 00 b3 0a 32 b3 0a 28 14 01 00 4c a3 50 33 -descriptor 4: 00 00 00 fe 00 4c 54 4e 31 35 34 50 33 2d 4c 30 32 0a -extensions: 00 -checksum: 7e - -Manufacturer: LEN Model 4053 Serial Number 0 -Made week 0 of 2007 -EDID version: 1.3 -Digital display -Maximum image size: 33 cm x 21 cm -Gamma: 220% -Check DPMS levels -DPMS levels: Standby Suspend Off -Supported color formats: RGB 4:4:4, YCrCb 4:2:2 -First detailed timing is preferred timing -Established timings supported: -Standard timings supported: -Detailed timings -Hex of detail: a82f90e0601a1040204013004bcf10000019 -Did detailed timing -Detailed mode (IN HEX): Clock 122000 KHz, 14b mm x cf mm - 0690 06b0 06f0 0770 hborder 0 - 041a 041b 041e 042a vborder 0 - -hsync -vsync -Hex of detail: b72790e0601a1040204013004bcf10000019 -Detailed mode (IN HEX): Clock 122000 KHz, 14b mm x cf mm - 0690 06b0 06f0 0770 hborder 0 - 041a 041b 041e 042a vborder 0 - -hsync -vsync -Hex of detail: 0000000f00b30a32b30a281401004ca35033 -Manufacturer-specified data, tag 15 -Hex of detail: 000000fe004c544e31353450332d4c30320a -ASCII string: LTN154P3-L02 -Checksum -Checksum: 0x7e (valid) -WARNING: EDID block does NOT fully conform to EDID 1.3. - Missing name descriptor - Missing monitor ranges -bringing up panel at resolution 1680 x 1050 -Borders 0 x 0 -Blank 224 x 16 -Sync 64 x 3 -Front porch 32 x 1 -Spread spectrum clock -Single channel -Polarities 1, 1 -Data M1=2132104, N1=8388608 -Link frequency 270000 kHz -Link M1=236900, N1=524288 -Pixel N=9, M1=24, M2=8, P1=1 -Pixel clock 243809 kHz -waiting for panel powerup -panel powered up -</pre> - - <p> - Another incompatible (T400) screen: - </p> -<pre> -No size specified (using byte-data access) - 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef -00: XX ff ff ff ff ff ff 00 30 ae 33 40 00 00 00 00 X.......0?3@.... -10: 00 0f 01 03 80 1e 13 78 ea cd 75 91 55 4f 8b 26 .??????x??u?UO?&amp; -20: 21 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 !PT...?????????? -30: 01 01 01 01 01 01 b0 27 a0 60 51 84 2d 30 30 20 ???????'?`Q?-00 -40: 36 00 2f be 10 00 00 19 d5 1f a0 40 51 84 1a 30 6./??..????@Q??0 -50: 30 20 36 00 2f be 10 00 00 19 00 00 00 0f 00 90 0 6./??..?...?.? -60: 0a 32 90 0a 28 14 01 00 4c a3 42 44 00 00 00 fe ?2??(??.L?BD...? -70: 00 4c 54 4e 31 34 31 57 44 2d 4c 30 35 0a 00 32 .LTN141WD-L05?.2 -80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ - -</pre> - - <p> - For comparison, here is a working display (T400 screen, but was - connected to a T500. Some T500 displays also work, but no EDID - available on this page yet): - </p> -<pre> -EDID: -00 ff ff ff ff ff ff 00 30 ae 31 40 00 00 00 00 -00 12 01 03 80 1e 13 78 ea b3 85 95 58 53 8a 28 -25 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 -01 01 01 01 01 01 26 1b 00 7d 50 20 16 30 30 20 -36 00 30 be 10 00 00 18 8b 16 00 7d 50 20 16 30 -30 20 36 00 30 be 10 00 00 18 00 00 00 0f 00 81 -0a 32 81 0a 28 14 01 00 30 e4 28 01 00 00 00 fe -00 4c 50 31 34 31 57 58 33 2d 54 4c 52 31 00 d8 -Extracted contents: -header: 00 ff ff ff ff ff ff 00 -serial number: 30 ae 31 40 00 00 00 00 00 12 -version: 01 03 -basic params: 80 1e 13 78 ea -chroma info: b3 85 95 58 53 8a 28 25 50 54 -established: 00 00 00 -standard: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 -descriptor 1: 26 1b 00 7d 50 20 16 30 30 20 36 00 30 be 10 00 00 18 -descriptor 2: 8b 16 00 7d 50 20 16 30 30 20 36 00 30 be 10 00 00 18 -descriptor 3: 00 00 00 0f 00 81 0a 32 81 0a 28 14 01 00 30 e4 28 01 -descriptor 4: 00 00 00 fe 00 4c 50 31 34 31 57 58 33 2d 54 4c 52 31 -extensions: 00 -checksum: d8 - -Manufacturer: LEN Model 4031 Serial Number 0 -Made week 0 of 2008 -EDID version: 1.3 -Digital display -Maximum image size: 30 cm x 19 cm -Gamma: 220% -Check DPMS levels -DPMS levels: Standby Suspend Off -Supported color formats: RGB 4:4:4, YCrCb 4:2:2 -First detailed timing is preferred timing -Established timings supported: -Standard timings supported: -Detailed timings -Hex of detail: 261b007d502016303020360030be10000018 -Did detailed timing -Detailed mode (IN HEX): Clock 69500 KHz, 130 mm x be mm - 0500 0530 0550 057d hborder 0 - 0320 0323 0329 0336 vborder 0 - -hsync -vsync -Hex of detail: 8b16007d502016303020360030be10000018 -Detailed mode (IN HEX): Clock 69500 KHz, 130 mm x be mm - 0500 0530 0550 057d hborder 0 - 0320 0323 0329 0336 vborder 0 - -hsync -vsync -Hex of detail: 0000000f00810a32810a2814010030e42801 -Manufacturer-specified data, tag 15 -Hex of detail: 000000fe004c503134315758332d544c5231 -ASCII string: LP141WX3-TLR1 -Checksum -Checksum: 0xd8 (valid) -WARNING: EDID block does NOT fully conform to EDID 1.3. - Missing name descriptor - Missing monitor ranges -bringing up panel at resolution 1280 x 800 -Borders 0 x 0 -Blank 125 x 22 -Sync 32 x 6 -Front porch 48 x 3 -Spread spectrum clock -Single channel -Polarities 1, 1 -Data M1=1214600, N1=8388608 -Link frequency 270000 kHz -Link M1=134955, N1=524288 -Pixel N=10, M1=14, M2=11, P1=1 -Pixel clock 138857 kHz -waiting for panel powerup -panel powered up -</pre> - - <p> - Another compatible T400 screen: - </p> -<pre> -trisquel@trisquel:~$ sudo i2cdump -y 2 0x50 -No size specified (using byte-data access) - 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef -00: 00 ff ff ff ff ff ff 00 30 ae 31 40 00 00 00 00 ........0?1@.... -10: 00 12 01 03 80 1e 13 78 ea b3 85 95 58 53 8a 28 .??????x????XS?( -20: 25 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 %PT...?????????? -30: 01 01 01 01 01 01 26 1b 00 7d 50 20 16 30 30 20 ??????&?.}P ?00 -40: 36 00 30 be 10 00 00 18 8b 16 00 7d 50 20 16 30 6.0??..???.}P ?0 -50: 30 20 36 00 30 be 10 00 00 18 00 00 00 0f 00 81 0 6.0??..?...?.? -60: 0a 32 81 0a 28 14 01 00 30 e4 28 01 00 00 00 fe ?2??(??.0?(?...? -70: 00 4c 50 31 34 31 57 58 33 2d 54 4c 52 31 00 d8 .LP141WX3-TLR1.? -80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -</pre> - - </div> - - <div class="section"> - - <p> - Copyright &copy; 2015 Leah Rowe &lt;info@minifree.org&gt;<br/> - Permission is granted to copy, distribute and/or modify this document - under the terms of the GNU Free Documentation License, Version 1.3 - or any later version published by the Free Software Foundation; - with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. - A copy of the license can be found at <a href="../gfdl-1.3.txt">../gfdl-1.3.txt</a> - </p> - - <p> - Updated versions of the license (when available) can be found at - <a href="https://www.gnu.org/licenses/licenses.html">https://www.gnu.org/licenses/licenses.html</a> - </p> - - <p> - UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE - EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS - AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF - ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, - IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, - WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR - PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, - ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT - KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT - ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU. - </p> - <p> - TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE - TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, - NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, - INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, - COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR - USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN - ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR - DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR - IN PART, THIS LIMITATION MAY NOT APPLY TO YOU. - </p> - <p> - The disclaimer of warranties and limitation of liability provided - above shall be interpreted in a manner that, to the extent - possible, most closely approximates an absolute disclaimer and - waiver of all liability. - </p> - - </div> - -</body> -</html> diff --git a/docs/hcl/r400.html b/docs/hcl/r400.html @@ -81,15 +81,6 @@ <div class="section"> - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="gm45_lcd.html">gm45_lcd.html</a>. - </p> - - </div> - - <div class="section"> - <p> Copyright &copy; 2014, 2015 Leah Rowe &lt;info@minifree.org&gt;<br/> Permission is granted to copy, distribute and/or modify this document diff --git a/docs/hcl/t400.html b/docs/hcl/t400.html @@ -77,15 +77,6 @@ <div class="section"> - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="gm45_lcd.html">gm45_lcd.html</a>. - </p> - - </div> - - <div class="section"> - <h2 id="regdumps">Hardware register dumps</h2> <p> diff --git a/docs/hcl/t500.html b/docs/hcl/t500.html @@ -76,15 +76,6 @@ </div> <div class="section"> - - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="gm45_lcd.html">gm45_lcd.html</a>. - </p> - - </div> - - <div class="section"> <h2 id="descriptor_difference"> Descriptor and Gbe differences diff --git a/docs/install/r400_external.html b/docs/install/r400_external.html @@ -52,15 +52,6 @@ </div> - <div class="section"> - - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="../hcl/gm45_lcd.html">../hcl/gm45_lcd.html</a>. - </p> - - </div> - <div class="section" id="cpu_compatibility"> <h1>A note about CPUs</h1> diff --git a/docs/install/t400_external.html b/docs/install/t400_external.html @@ -52,15 +52,6 @@ </div> - <div class="section"> - - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="../hcl/gm45_lcd.html">../hcl/gm45_lcd.html</a>. - </p> - - </div> - <div class="section" id="cpu_compatibility"> <h1>A note about CPUs</h1> diff --git a/docs/install/t500_external.html b/docs/install/t500_external.html @@ -47,15 +47,6 @@ </div> - <div class="section"> - - <h1 id="lcd_compatibility">LCD compatibly</h1> - <p> - Not all LCD panels are compatible yet. See <a href="../hcl/gm45_lcd.html">../hcl/gm45_lcd.html</a>. - </p> - - </div> - <div class="section" id="cpu_compatibility"> <h1>A note about CPUs</h1>