1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
|
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>libreboot tutorials</title>
<style type="text/css">
@import url('../css/main.css');
</style>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="author" content="glugman">
<meta name="description" content="tutorials for libreboot, the reboot library.">
<meta name="robots" content="all">
</head>
<body>
<div class="section">
<h1 id="pagetop">Development notes</h1>
<p>
These are development notes, for future use. For old (obselete) notes, see <a href="old.html">old.html</a>.
</p>
<p>
Or go <a href="../tasks.html">back to main task list</a>.
</p>
</div>
<div class="section">
<h1>Table of contents</h1>
<ul>
<li><a href="#standard_test">Standard test</a></li>
<li><a href="#t60_cpu_microcode">T60 cpu microcode</a></li>
<li><a href="#i945_vram_size">i945 VRAM size</a></li>
<li><a href="#lcd_i945_incompatibility">LCD panels on i945 - fix incompatible panels</a></li>
<li><a href="#i945_vbt">i945 X60/T60 VBT implementation (experimental: testing)</a></li>
<li><a href="#intelvbttool_results">IntelVbtTool results</a></li>
<li><a href="#fallback_patches">Fallback patches for i945</a></li>
</ul>
</div>
<div class="section">
<h1 id="standard_test">standard test</h1>
<p>
These logs are usually obtained when testing changes related to graphics on i945 (X60 and T60).
</p>
<ul>
<li>
Make a copy of these files:
<ul>
<li>/var/log/dmesg</li>
<li>/var/log/kern.log</li>
<li>/var/log/Xorg.0.log</li>
<li>/proc/ioports</li>
<li>/proc/iomem</li>
<li>/sys/class/drm/card0/error</li>
</ul>
</li>
<li>
Record these outputs:
<ul>
<li>sudo intel_reg_dumper</li>
<li>uname -r</li>
<li>lspci -vvvvnnnnxxxx</li>
<li>sudo modprobe msr</li>
<li>sudo inteltool -a</li>
<li>sudo cbmem -c</li>
</ul>
</li>
<li>
Try some 3D games with latest kernel.
</li>
</ul>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="t60_cpu_microcode">T60 cpu microcode</h1>
<p>
TODO: T60: find (for rare buggy CPUs that are unstable without microcode updates) if there is a workaround (patched kernel, special parameter, etc) So far, only 1 processor has been found to have issues. See microcode errata sheets http://download.intel.com/design/mobile/SPECUPDT/31407918.pdf and http://download.intel.com/design/mobile/SPECUPDT/30922214.pdf and then look at the debugging results collected in <a href="../t7200q">t7200q</a> directory (q means quirk).
</p>
<p>
Every other T7200 tested so far has worked without microcode updates.
</p>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="i945_vram_size">i945 VRAM size</h1>
<p>
Apparently, only 8MB VRAM is available on i945 GPUs (though it could do 64MB):<br/>
phcoder: No. Hardware default is 8 MiB. When I wanted to make it configurable, I saw that docs mention only one other alternative: 1MiB. Later isn't event enough for 1024x768 at 24bpp without any acceleration or double buffering. It's possible that there are undocumented values. Which options do you have in vendor BIOS?
How to find out how much vram you have:<br/>
phcoder: TOM - BSM<br/>
phcoder: check what vendor BIOS offers as options<br/>
vimuser: I thought it could do 64MB usually<br/>
phcoder: not accorging to doc.<br/>
phcoder: see mobile-945-express-chipset-datasheet page 93<br/>
phcoder: see also src/northbridge/intel/i945/{early_init,northbridge,gma}.c<br/>
vimuser: "011 = DVMT (UMA) mode, 8 MB of memory pre-allocated for<br/>
vimuser: frame buffer."<br/>
vimuser: "Others - reserved"<br/>
phcoder: the easiest way is a loop at this position which tries different values and reads (and prints) BSM with them<br/>
stefanct: vimuser: they suggest that you change the value and look how BSM reacts to that<br/>
stefanct: as they pointed out earlier vram size = TOM - BSM<br/>
stefanct: different values of GMS<br/>
stefanct: phcoder: hm... this could be a hint. look at the text description of TOLUD at page 103<br/>
stefanct: it mentions 64 MB in the text about BSM as well<br/>
stefanct: table 18...<br/>
phcoder: stefanct: I have a guess which value make is 64 but I will not tell to avoid skewing test results<br/>
stefanct: phcoder: sure... i assumed you were not sure if it supports it at all. testing it properly is of course a good idea :)<br/>
stefanct: test the various possible (but reserved) values of GMS and see what the resulting VRAM size is<br/>
vimuser: so, TOM - BSM
</p>
<p>
<a href="#pagetop">Back to top of page.</a>
</p>
</div>
<div class="section">
<h1 id="lcd_i945_incompatibility">LCD panels on i945 - fix incompatible panels</h1>
<p>
Fix T60 issues (see incompatible panels listed at <a href="../hcl/index.html#supported_t60_list">../hcl/index.html#supported_t60_list</a>).
</p>
<p>
Run that tool (resources/utilities/i945gpu/intel-regs.py) as root on systems with the offending panels in:
</p>
<ul>
<li>Coreboot (or libreboot, whatever) with VBIOS (disable native graphics also)</li>
<li>(Factory BIOS also?)</li>
</ul>
<p>
This shows values in devicetree.cb and src/northbridge/intel/i945/gma.c, the idea is that you run it on factory bios or vbios
and that it will (might) show different values: then you try those in the native graphics (in libreboot).
</p>
<p>
Other values/registers might also need to be added to the script for these tests.
</p>
<p>
check if intel_bios_reader from intel-gpu-tools reports the same value (BIOS has a hardcoded value) for PWM modulation frequency.
This file can read the VBIOS (64K dump).
</p>
<p>
Check other tools in intel-gpu-tools aswell, compare outputs. Possibly add more information to intel-regs.py output (submit changes to mtjm).
Do oprom trace / replay (<a href="http://www.coreboot.org/User:GNUtoo#How_to_get_rid_of_the_vbios_of_the_x60_.5BNew_Version.5D">http://www.coreboot.org/User:GNUtoo#How_to_get_rid_of_the_vbios_of_the_x60_.5BNew_Version.5D</a>)
</p>
<p>
Study how EDID works and how gma.c handles it.
</p>
<p>
Original getregs.py script can be found at <a href="http://hg.mtjm.eu/scripts/file/tip/intel-regs.py">http://hg.mtjm.eu/scripts/file/tip/intel-regs.py</a>
written by Michał Masłowski.
</p>
<p>
About fixing remaining LCD panels on 5345:<br/>
'polarity' is mentioned in coreboot log (cbmem -c). compare output (with working and non-working panel). (and see the other notes in docs/future/index.html)
</p>
<p>
There was a theory that working panels are
6bpc (bits per colour) and nonworking are
8bpc, but all EDIDs that we have here are
for 6bpc panels.
</p>
<p>We should compare coreboot logs
(from <code>cbmem -c</code> from systems with
working and nonworking panels.</p>
<p>How to dump EDID:</p>
<p>
# <b>apt-get install i2c-tools</b><br/>
# <b>modprobe i2c-dev</b><br/>
Find out the correct ID to use:<br/>
# <b>i2cdetect -l</b><br/>
Example:<br/>
# <b>i2cdump -y 2 0x50</b>
</p>
<p>
Working panel: EDID dump from LG-Philips LP150E05-A2K1:
</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 43 40 00 00 00 00 X.......0?C@....
10: 00 0f 01 03 80 1e 17 78 ea af 00 99 58 53 8c 2a .??????x??.?XS?*
20: 25 50 54 21 08 00 81 80 01 01 01 01 01 01 01 01 %PT!?.??????????
30: 01 01 01 01 01 01 30 2a 78 20 51 1a 10 40 30 70 ??????0*x Q??@0p
40: 13 00 31 e4 10 00 00 18 28 23 78 20 51 1a 10 40 ?.1??..?(#x Q??@
50: 30 70 13 00 31 e4 10 00 00 18 00 00 00 0f 00 90 0p?.1??..?...?.?
60: 43 32 90 43 28 14 06 00 32 0c 00 00 00 00 00 fe C2?C(??.2?.....?
70: 00 4c 50 31 35 30 45 30 35 2d 41 32 0a 20 00 9b .LP150E05-A2? .?
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>
Working panel: EDID dump from Boe-Hydis HT14P12-100 FRU: 13N7061 (Inverter FRU: 41W1010)
</p>
<pre>
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 22 40 00 00 00 00 ........0?"@....
10: 00 0f 01 03 80 1c 15 78 ea af 40 95 56 4a 8f 25 .??????x??@?VJ?%
20: 20 50 54 21 08 00 81 80 01 01 01 01 01 01 01 01 PT!?.??????????
30: 01 01 01 01 01 01 30 2a 78 20 51 1a 10 40 30 70 ??????0*x Q??@0p
40: 13 00 1d d6 10 00 00 19 25 23 78 20 51 1a 10 40 ?.???..?%#x Q??@
50: 30 70 13 00 1d d6 10 00 00 19 00 00 00 0f 00 90 0p?.???..?...?.?
60: 43 32 90 43 28 0f 01 00 09 e5 00 00 00 00 00 fe C2?C(??.??.....?
70: 00 48 54 31 34 50 31 32 2d 31 30 30 0a 20 00 3f .HT14P12-100? .?
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>LTN141XA-L01: revert to libreboot git commit c943281 to see this</p>
<p>
<b>Non-</b>working panel: EDID dump from Samsung LTN150XG-L08:
</p>
<pre>
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 40 40 00 00 00 00 ........0?@@....
10: 00 0f 01 03 80 1f 17 78 ea 2d 05 97 57 51 8a 27 .??????x?-??WQ?'
20: 23 50 54 21 08 00 01 01 01 01 01 01 01 01 01 01 #PT!?.??????????
30: 01 01 01 01 01 01 64 19 00 40 41 00 26 30 18 88 ??????d?.@A.&0??
40: 36 00 30 e4 10 00 00 19 28 15 00 40 41 00 26 30 6.0??..?(?.@A.&0
50: 18 88 36 00 30 e4 10 00 00 19 00 00 00 0f 00 61 ??6.0??..?...?.a
60: 43 32 61 43 28 14 01 00 4c a3 58 47 00 00 00 fe C2aC(??.L?XG...?
70: 00 4c 54 4e 31 35 30 58 47 2d 4c 30 38 0a 00 6d .LTN150XG-L08?.m
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><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="i945_vbt">i945 gfx: X60/T60 VBT implementation (experimental: testing)</h1>
<p>
intel_bios_dumper in intel-gpu-tools seems interesting.
</p>
<p>
<b>Use 'drm.debug=0x06' kernel parameter when booting in grub!</b>
</p>
<p>
Before each test run, boot a live USB and delete the old logs in /var/log (kernel log, xorg log, dmesg and so on).
</p>
<p>
Load (from the ROM) the runningvga.bin for each LCD panel on each system; do not execute it, only load it! (coreboot will have to be modified).
Rename the ROM appropriately, based on the system name and the panel name. coreboot_nativegfx_5868_plusrunningvga_t60_14_LTD141ECMB.rom,
for instance. Keep a copy for later use.
</p>
<p>You are supposed to:</p>
<ul>
<li>enable native graphics in menuconfig</li>
<li>include the self-modified VGA ROM (load, but not execute) - for reverse engineering the correct VBT tables.</li>
</ul>
<p>
With each boot, make notes about what you see and get logs using the <a href="#standard_test">standard test</a>.
You will need the files from <a href="#intelvbttool_results">#intelvbttool_results</a> for each system.
</p>
Results (# means untested):
<ul>
<li>
<b>X60/X60s:</b>
<ul>
<li>TMD-Toshiba LTD121ECHB: #</li>
<li>CMO N121X5-L06: #</li>
<li>Samsung LTN121XJ-L07: #</li>
<li>BOE-Hydis HT121X01-101: #</li>
</ul>
</li>
<li>
<b>X60T XGA:</b>
<ul>
<li>BOE-Hydis HV121X03-100: #</li>
</ul>
</li>
<li>
<b>X60T SXGA+:</b>
<ul>
<li>BOE-Hydis HV121P01-100: #</li>
</ul>
</li>
<li>
<b>T60 14" XGA:</b>
<ul>
<li>Samsung LTN141XA-L01: #</li>
<li>CMO N141XC: #</li>
<li>BOE-Hydis HT14X14: #</li>
<li>TMD-Toshiba LTD141ECMB: #</li>
</ul>
</li>
<li>
<b>T60 14" SXGA+</b>
<ul>
<li>TMD-Toshiba LTD141EN9B: #</li>
<li>Samsung LTN141P4-L02: #</li>
<li>Boe-Hydis HT14P12: #</li>
</ul>
</li>
<li>
<b>T60 15" XGA</b>
<ul>
<li>Samsung LTN150XG-L08: #</li>
<li>LG-Philips LP150X09: #</li>
<li>13N7068 (IDtech): #</li>
<li>13N7069 (CMO): #</li>
</ul>
</li>
<li>
<b>T60 15" SXGA+</b>
<ul>
<li>LG-Philips LP150E05-A2K1: #</li>
<li>BOE-Hydis HV150P01-100: #</li>
</ul>
</li>
<li>
<b>T60 15" UXGA</b>
<ul>
<li>BOE-Hydis HV150UX1-100: #</li>
<li>IDTech N150U3-L01: #</li>
<li>BOE-Hydis HV150UX1-102: #</li>
</ul>
</li>
<li>
<b>T50 15" QXGA</b>
<ul>
<li>IDtech IAQX10N: #</li>
<li>IDtech IAQX10S: #</li>
</ul>
</li>
</ul>
<p><a href="#pagetop">Back to top of page</a></p>
</div>
<div class="section">
<h1 id="intelvbttool_results">intelvbttool test results (VGA ROM dumps)</h1>
<p>
The VBIOS on i945 (intel gpu) platforms is self-modifying; that is,
its contents change when you run it. intelvbttool takes a dump of
the currently running vbios, and parses it.
</p>
<p>
The idea is that we can extract the VBT tables using this knowledge, on the X60, X60 Tablet and T60 (Intel GPU).
</p>
<p>
Here is an example of how VBT was implemented on the ThinkPad X230:
<a href="http://review.coreboot.org/#/c/5396">http://review.coreboot.org/#/c/5396</a>.
</p>
<p>
You'll need to build a T60 ROM with SeaBIOS and the VGA ROM (for Intel GPU). An X60 ROM is also needed (same configuration, using the VGA ROM for X60).
</p>
<p>
T60 has DVI on its dock, make sure that the dock is attached when getting this output.
</p>
<p>
Get intelvbttool here: <a href="http://review.coreboot.org/#/c/5842">http://review.coreboot.org/#/c/5842</a> (util/intelvbttool).
</p>
<p>
Now dump a copy of the running VGA BIOS:
<b>$ sudo dd if=/dev/mem bs=64k of=runningvga.bin skip=12 count=1</b><br/>
Then do (and record the output):<br/>
<b>$ ./intelvbttool runningvga.bin > intelvbttool_out</b>
</p>
<p>
Backup both files (runningvga.bin and intelvbttool_out), renaming them to match the system and LCD panel used.
<a href="../misc/index.html#get_edid_panelname">../misc/index.html#get_edid_panelname</a> will show you how to get the name (model) of the LCD panel used.
</p>
<h2>Test results (# means untested and all had docks, unless noted).</h2>
<ul>
<li>
<b>X60/X60s:</b>
<ul>
<li>TMD-Toshiba LTD121ECHB: #</li>
<li>CMO N121X5-L06: #</li>
<li>Samsung LTN121XJ-L07: #</li>
<li>BOE-Hydis HT121X01-101: #</li>
</ul>
</li>
<li>
<b>X60T XGA (1024x768):</b>
<ul>
<li>BOE-Hydis HV121X03-100: #</li>
</ul>
</li>
<li>
<b>X60T SXGA+ (1400x1050):</b>
<ul>
<li>BOE-Hydis HV121P01-100: #</li>
</ul>
</li>
<li>
<b>T60 14" XGA (1024x768):</b>
<ul>
<li>Samsung LTN141XA-L01: #</li>
<li>CMO N141XC: #</li>
<li>BOE-Hydis HT14X14: #</li>
<li>TMD-Toshiba LTD141ECMB: #</li>
</ul>
</li>
<li>
<b>T60 14" SXGA+ (1400x1050):</b>
<ul>
<li>TMD-Toshiba LTD141EN9B: #</li>
<li>Samsung LTN141P4-L02: #</li>
<li>Boe-Hydis HT14P12: #</li>
</ul>
</li>
<li>
<b>T60 15" XGA (1024x768):</b>
<ul>
<li>Samsung LTN150XG-L08: #</li>
<li>LG-Philips LP150X09: #</li>
<li>13N7068 (IDtech): #</li>
<li>13N7069 (CMO): #</li>
</ul>
</li>
<li>
<b>T60 15" SXGA+ (1400x1050):</b>
<ul>
<li>LG-Philips LP150E05-A2K1: #</li>
<li>BOE-Hydis HV150P01-100: #</li>
</ul>
</li>
<li>
<b>T60 15" UXGA (1600x1200):</b>
<ul>
<li>BOE-Hydis HV150UX1-100: #</li>
<li>IDTech N150U3-L01: #</li>
<li>BOE-Hydis HV150UX1-102: #</li>
</ul>
</li>
<li>
<b>T60 15" QXGA (2048x1536):</b>
<ul>
<li>IDtech IAQX10N: #</li>
<li>IDtech IAQX10S: #</li>
</ul>
</li>
</ul>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="fallback_patches">Fallback patches</h1>
<ul>
<li>
Todo: test gnutoo's fallback patches: <a href="http://www.coreboot.org/Fallback_mechanism">http://www.coreboot.org/Fallback_mechanism</a>
(some parts use systemd. adapt for upstart, which is what trisquel uses)<br/>
see <a href="gnutoo_fallback_patch">this IRC log</a> (warning, not cleaned up)
</li>
</ul>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<h1 id="other">Other - unlisted (low priority)</h1>
<ul>
<li>
PTE errors still exist on i945 with 6718 (which is merged). <a href="http://review.coreboot.org/#/c/6718/">http://review.coreboot.org/#/c/6718/</a>
<ul>
<li><a href="future/dumps/pte_x60_6718/dmesg">dmesg</a></li>
<li><a href="future/dumps/pte_x60_6718/kern.log">kern.log</a></li>
<li>This doesn't seem to cause any issues for general use.</li>
</ul>
</li>
<li>
Implement INT 10H support in i945 native graphics. (this will be a lot of work. SeaBIOS has code for some geode boards, to get a general idea).
</li>
<li>
T60 15" QXGA (2048x1536): fixed issue where GRUB wouldn't show any graphics. (Not many people have this panel)
<ul>
<li>It might be the same issue I ran into with Paul on the X60 (not enough memory being allocated) since the same code works on T60 SXGA+ and UXGA, where GRUB actually display graphics.</li>
</ul>
</li>
</ul>
<p><a href="#pagetop">Back to top of page.</a></p>
</div>
<div class="section">
<p>
Copyright © 2014, 2015 Leah Rowe <info@minifree.org><br/>
Permission is granted to copy, distribute and/or modify this document
under the terms of the Creative Commons Attribution-ShareAlive 4.0 International license
or any later version published by Creative Commons;
A copy of the license can be found at <a href="../cc-by-sa-4.0.txt">../cc-by-sa-4.0.txt</a>
</p>
<p>
Updated versions of the license (when available) can be found at
<a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode">https://creativecommons.org/licenses/by-sa/4.0/legalcode</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>
|
