Known Problems - Revision history

Skim: Add Issues category.

2020-03-24T18:34:59Z

Add Issues category.

Bugmenot2: added an old problem

2020-03-19T18:43:09Z

added an old problem

Bugmenot2: added more problems

2020-03-12T10:21:38Z

added more problems

Bugmenot2: added more problems

2020-02-16T12:38:50Z

added more problems

Bugmenot2: added more old problems

2020-01-11T09:36:31Z

added more old problems

Bugmenot2: removed problems that were solved a long time ago, added new problems

2020-01-07T10:30:54Z

removed problems that were solved a long time ago, added new problems

Bugmenot2: added more known problems

2020-01-04T16:18:03Z

added more known problems

Bugmenot2: added more obvious known problems

2020-01-02T13:43:06Z

added more obvious known problems

Bugmenot2: recategorized problems list, removed problems that have been solved ages ago by updated drivers

2019-12-28T14:04:41Z

recategorized problems list, removed problems that have been solved ages ago by updated drivers

Show changes

Hawox: /* Sound Problems */

2015-02-03T18:38:23Z

‎Sound Problems

← Older revision		Revision as of 18:34, 24 March 2020
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	*[[Problems accessing cdrom drive]] (T400)		*[[Problems accessing cdrom drive]] (T400)
	*[[Problem with Overheating then reboot since Ubuntu 11.10]] (T500)		*[[Problem with Overheating then reboot since Ubuntu 11.10]] (T500)
		+
		+	[[Category:Issues]]

@@ Line 2: / Line 2: @@
 |style="vertical-align:top;padding-right:20px;width:10px;white-space:nowrap;" | __TOC__
 |style="vertical-align:top" |
-This page provides information regarding known problems with certain ThinkPad models.
+This page provides information regarding unusual known problems, or rather, hardware/software design defects that may appear on a ThinkPad. Known problems that are related to age, are not considered unusual and will not be listed here. Some examples include:
-A complete fix or a work-around for a problem might not be possible in some circumstances.
+Hardware problems are design defects related to a physical component that resides on or in a ThinkPad, which may result in premature death or reduced functionality. Fortunately, some components are modular and can be swapped for a fault-free equivalent in certain cases. Software problems on the other hand, are design defects or mistakes related to a component's firmware. Depending on the severity of the problem, some can be easily resolved with a simple modification, but some can't and may require special tools.
 |}
 ==Hardware Problems==
 ===Display-related===
 *[https://forum.thinkpads.com/viewtopic.php?t=125590 Problem with air bubbles forming due to inadequate adhesive used] (X61 Tablet)
 *[http://web.archive.org/web/20140805042157/http://support.lenovo.com/en_US/detail.page?LegacyDocID=MIGR-76367 Problem with garbled or blank vertical stripes on TFT display] (T400s, T410s, T410si)
@@ Line 53: / Line 54: @@
 *[https://forum.thinkpads.com/viewtopic.php?t=115392#p741280 Problem with stiff or loose left hinge caused by broken magnesium frame] (W500, T500)
 *[http://forum.notebookreview.com/threads/thinkpads-are-so-tough-anyone-have-this-happen.630506/#post-8140167 Problem with hairline cracks forming on palmrest] (T400s, T410s, T410si)
 ==Software Problems==
@@ Line 90: / Line 90: @@
 ===BIOS/UEFI-related===
 *[[Problem with unauthorized MiniPCI network card|"Unauthorized" MiniPCI Wireless Network card error (Error 1802)]] (models with MiniPCI, MiniPCIe, and M.2 slots)
 *[[Embedded Controller Firmware#Firmware_issues|Firmware issues]]

@@ Line 4: / Line 4: @@
 This page provides information regarding known problems with certain ThinkPad models.
-A complete fix or a work-around for a problem, may not be possible in some circumstances.
+A complete fix or a work-around for a problem might not be possible in some circumstances.
 |}
 ==Hardware Problems==
@@ Line 35: / Line 35: @@
 *[https://forum.thinkpads.com/viewtopic.php?t=75571 Problem with dead VGA port] (X61, X61s, X61 Tablet)
 *[https://forum.thinkpads.com/viewtopic.php?t=114823 Problem with broken USB ports' tabs] (W500, T400, T500, R400, R500)
 ===Power-related===
@@ Line 50: / Line 52: @@
 *[https://forum.thinkpads.com/viewtopic.php?t=105764 Problem with broken left hinge] (SLx00 series)
 *[https://forum.thinkpads.com/viewtopic.php?t=115392#p741280 Problem with stiff or loose left hinge caused by broken magnesium frame] (W500, T500)
-*[http://forum.notebookreview.com/threads/thinkpads-are-so-tough-anyone-have-this-happen.630506/#post-8140167 Problem with hairline cracks forming on palmrest] (T400s, T410s)
+*[http://forum.notebookreview.com/threads/thinkpads-are-so-tough-anyone-have-this-happen.630506/#post-8140167 Problem with hairline cracks forming on palmrest] (T400s, T410s, T410si)
-*[[Problem with hot surfaces]]
+*[[Problem with hot surfaces]] (some models)
 ==Software Problems==
@@ Line 71: / Line 73: @@
 *[[Problem with e1000: EEPROM Checksum Is Not Valid]] (any model with the 82573L LAN controller)
 *[[Problem with 3945ABG: Internal wifi cannot associate with AP]] (any model with the 3945ABG WLAN card)
-*[[Need to disable V90/V92/56K modem speed]] (any model with a Conexant SmartV.92 Softmodem DSP)
+*[[Need to disable V90/V92/56K modem speed|Problem with V.90 and V.92 speeds]] (any model with a Conexant SmartV.92 Softmodem DSP)
 ===Power-related===

@@ Line 11: / Line 11: @@
 *[[Problem with broken inverter]] (any model with an inverter)
 *[[Problem with key and trackpoint markings on the display]]
-*[[Problem with red display shadow|Problem with slow response rate of red subpixels on TFT display panels]]
+*[[Problem with red display shadow|Problem with slow response rate of red subpixels on TFT display panels]] (defect in display panels from 2003~2004)
 *[[Problem with red tinted display|Problem with failing CCFL tubes on CCFL-backlit display panels]] (any model with a CCFL-backlit panel)
 *[https://forum.thinkpads.com/viewtopic.php?t=125590 Problem with air bubbles forming due to inadequate adhesive used] (X61 Tablet)
 *[https://support.lenovo.com/sg/en/solutions/ht051485 Problem with image retention/persistence on IPS-based TFT displays] (X220, X220i, X220 Tablet, X220i Tablet)
@@ Line 48: / Line 49: @@
 *[https://forum.thinkpads.com/viewtopic.php?t=103507 Problem with magnesium frame near the VGA port breaking apart] (T60, T60p, R60, R60e, R60i)
 *[https://forum.thinkpads.com/viewtopic.php?t=105764 Problem with broken left hinge] (SLx00 series)
-*[https://forum.thinkpads.com/viewtopic.php?t=120094 Problem with stiff left hinge caused by broken magnesium frame in display lid] (W500, T500)
+*[https://forum.thinkpads.com/viewtopic.php?t=115392#p741280 Problem with stiff or loose left hinge caused by broken magnesium frame] (W500, T500)
 *[http://forum.notebookreview.com/threads/thinkpads-are-so-tough-anyone-have-this-happen.630506/#post-8140167 Problem with hairline cracks forming on palmrest] (T400s, T410s)
 *[[Problem with hot surfaces]]
@@ Line 54: / Line 55: @@
 ==Software Problems==
 ===Display-related===
-*[[Problem with DVI throughput|Problem with DVI throughput on port replicators and docks]] <tt>(models from 2000-2004)</tt>
+*[[Problem with DVI throughput|Problem with DVI throughput on port replicators and docks]] (models from 2000-2004)
 *[[Problems with fglrx |Problem with ATI proprietary fglrx display driver]] (all models with an ATI display controller)
 *[[Problem with video related system lockup|Problem with system lockups related to video adapter]] (all models with an S3 display controller)

@@ Line 42: / Line 42: @@
 ===External-related===
 *[https://forum.thinkpads.com/viewtopic.php?f=28&t=42006 Problem with cracks forming on palmrest or keyboard bezel] (T2x)
 *Problem with hairline cracks forming nearby hinges (R3x)
 *[[Problem with Bending / Twisting|Problem with malformed casing caused by bending/twisting]] (T4x, X4x)
-*[[Problem with hot surfaces]]
+*[https://forum.thinkpads.com/viewtopic.php?t=103507 Problem with magnesium frame near the VGA port breaking apart] (T60, T60p, R60, R60e, R60i)
 *[https://forum.thinkpads.com/viewtopic.php?t=105764 Problem with broken left hinge] (SLx00 series)
 *[https://forum.thinkpads.com/viewtopic.php?t=120094 Problem with stiff left hinge caused by broken magnesium frame in display lid] (W500, T500)
 *[http://forum.notebookreview.com/threads/thinkpads-are-so-tough-anyone-have-this-happen.630506/#post-8140167 Problem with hairline cracks forming on palmrest] (T400s, T410s)
 ==Software Problems==

@@ Line 10: / Line 10: @@
 *[[Problem with Pixel Error|Problem with dead pixels or subpixels on TFT display panels]] (any model with a TFT panel)
 *[[Problem with broken inverter]] (any model with an inverter)
 *[[Problem with key and trackpoint markings on the display]]
 *[[Problem with red display shadow|Problem with slow response rate of red subpixels on TFT display panels]]
@@ Line 28: / Line 27: @@
 *[https://forum.thinkpads.com/viewtopic.php?t=101400 Problem with dead audio codec chip] (A31, A31p)
 *[[Problem with failing memory slot|Problem with loose solder joints on a RAM slot]] (T20, T21, T30, X3x)
 *[[Problem with USB 2.0|Problem with loose southbridge chips]] (T4x, R5x, X40)
 *[https://forum.thinkpads.com/viewtopic.php?t=83881 Problem with dead southbridge caused by inadequate short-circuit protection] (X40)
 *[https://forum.thinkpads.com/viewtopic.php?t=100554 Problem with faulty NVIDIA GPU caused by inadequate solder bump material] (T61p, T61, R61, R61i)
 *[https://forum.thinkpads.com/viewtopic.php?t=75571 Problem with dead VGA port] (X61, X61s, X61 Tablet)
@@ Line 36: / Line 37: @@
 ===Power-related===
 *[[Problem with ThinkPad 600 batteries|Problem with premature battery death]] (600 series)
 *[[Damage in 56W AC-Adapter, plastic housing melted|Problem with damaged 56 W AC adapters]]
-*[[High-pitch noise from AC-Adapter]]
 ==Software Problems==
 ===Display-related===
-*[[Problem with unusable console | Console unusable]] (all models with an S3 Savage display controller)
+*[[Problem with DVI throughput|Problem with DVI throughput on port replicators and docks]] <tt>(models from 2000-2004)</tt>
-*[[Problem with DVI throughput | DVI throughput on port replicators and docks]] <tt>(models from 2000-2004)</tt>
+*[[Problems with fglrx |Problem with ATI proprietary fglrx display driver]] (all models with an ATI display controller)
-*[[Problems with fglrx | Problems with ATI proprietary fglrx display driver]] (all models with an ATI display controller)
+*[[Problem with video related system lockup|Problem with system lockups related to video adapter]] (all models with an S3 display controller)
-*[https://bugs.freedesktop.org/show_bug.cgi?id=2187 Radeon 7500 "DynamicClocks" randomly hangs] (T4x, Xorg-X11 bug report)
+*[[Problem with video output switching]]
-*[[Problem with black X | Unmovable square black X in X]] (T2x)
+*[[Problem with LCD brightness buttons|Problem with LCD brightness controls not working or causes crashes]] (some models with ACPI)
 ===Storage-related===
-*[[Problem with APS harddisk parking|APS harddisk parking]] (all models with APS)
+*[[Problem with APS harddisk parking]] (all models with APS)
-*[[Problem with too large harddrive|BIOS hangs with harddrive sized over 8G]] (560)
+*[[Problem with too large harddrive]] (560)
-*[[Problem with non-ThinkPad hard disks|Non-ThinkPad hard disks]] (T43, T43p, R52, X41)
+*[[Problem with non-ThinkPad hard disks]] (T43, T43p, R52, X41)
-*[[How to put SATA in old ThinkPads#over-validated input|SATA performance limited to UDMA 2]] (all models with a I/O controller capable of only IDE)
+*[[How to put SATA in old ThinkPads#over-validated input|Problem with SATA performance limited to UDMA 2]] (all models with a I/O controller capable of only IDE)
 ===Network-related===
-*[[Problem with 3Com 10/100 Ethernet card not being recognized|3Com 10/100 Ethernet card not recognized]] (all models with this card)
+*[[Problem with error 01C9 - More than one Ethernet devices]] (A31, A31p, T23, T30, X22, X23, X24, X30)
-*[[Cisco Aironet Wireless 802.11b]] fails to work with certain firmware versions
+*[[Problem with e1000: EEPROM Checksum Is Not Valid]] (any model with the 82573L LAN controller)
-*[[Problem with error 01C9 - More than one Ethernet devices | Error 01C9: More than one Ethernet Devices are found (Atheros WLAN MiniPCI)]] (A31, A31p, T23, T30, X22, X23, X24, X30)
+*[[Problem with 3945ABG: Internal wifi cannot associate with AP]] (any model with the 3945ABG WLAN card)
-*[[Problem with e1000: EEPROM Checksum Is Not Valid]] <tt>(T60, X60, may be others)</tt>
+*[[Need to disable V90/V92/56K modem speed]] (any model with a Conexant SmartV.92 Softmodem DSP)
 ===Power-related===
-*[[Problems with ACPI suspend-to-ram|ACPI suspend-to-ram]] <tt>(ACPI sleep troubles)</tt>
+*[[Problems with ACPI suspend-to-ram]] (ACPI sleep troubles)
-**[[Problem with display remaining black after resume|Blank display after resume]] <tt>(various models)</tt>
+**[[Problem with display remaining black after resume]] (various models)
-**[[Problem with high power drain in ACPI sleep | High power drain in ACPI sleep]] <tt>(various models)</tt>
+**[[Problem with high power drain in ACPI sleep]] (various models)
-**[[Problem with LCD backlight remaining on during ACPI sleep | LCD backlight remaining on during ACPI sleep]] <tt>(various models)</tt>
+**[[Problem with LCD backlight remaining on during ACPI sleep]] (various models)
-*[[Problem with fan noise | Fan noise]] <tt>(TP T4x/p, TP R5x/p)</tt>
+*[[Problem with fan noise|Problem with fan noise]] (some models)
-*[[Problem with checking battery status | Checking battery status causes mouse to jerk around]] <tt>(R31)</tt>
+*[[Problem with checking battery status|Problem with checking battery status causes mouse to jerk around]] (R31)
-*[[Battery drains despite seemingly being charged]] <tt>(A/C adapter issues)</tt>
+*[[Problem with CPU frequency scaling|Problem with CPU locked to lowest frequency under AC power only]] (any model with SpeedStep or Cool'n'Quiet)
-*[[Problem with high pitch noises | High pitch noises]] <tt>(several models)</tt>
+*[[Problem with system turning itself on|Problem with immediate restarts from suspend, hibernate, and halt]] (some models)
 ===Audio-related===
-*[[Problem with broken sound on ThinkPad 600 | Broken sound on ThinkPad 600/E]] <tt>(TP 600/E/X, 770Z)</tt>
+*[[Problem with audio clipping|Problem with audio clipping caused by excessive sound amplification]] (any model with an AD1981A or AD1981B AC'97 codec)
 ===BIOS/UEFI-related===
 *[[Problem with unauthorized MiniPCI network card|"Unauthorized" MiniPCI Wireless Network card error (Error 1802)]] (models with MiniPCI, MiniPCIe, and M.2 slots)
 *[[Embedded Controller Firmware#Firmware_issues|Firmware issues]]
@@ Line 96: / Line 90: @@
 *[[Problems accessing cdrom drive]] (T400)
 *[[Problem with Overheating then reboot since Ubuntu 11.10]] (T500)

@@ Line 8: / Line 8: @@
 ==Hardware Problems==
 ===Display-related===
-*[[Problem with Pixel Error | Dead pixels on TFT displays]] (all models with a TFT display)
+*[[Problem with Pixel Error|Problem with dead pixels or subpixels on TFT display panels]] (any model with a TFT panel)
-*[[Problem with broken inverter | Inverter broken]] (all models with an inverter)
+*[[Problem with broken inverter]] (any model with an inverter)
-*[[Problem with garbled screen | Garbled Screen]] (A3x, T4x, R5x, R40, R32)
+*[[Problem with garbled screen]] (A3x, T30, T4x, R32, R40, R5x)
-*[[Problem with key and trackpoint markings on the display | Key and Trackpoint markings on display]]
+*[[Problem with key and trackpoint markings on the display]]
-*[[Problem with red display shadow | Red shadow on display]] (T41p)
+*[[Problem with red display shadow|Problem with slow response rate of red subpixels on TFT display panels]]
-*[[Problem with red tinted display | Red tinted display]] (TP 23)
+*[[Problem with red tinted display|Problem with failing CCFL tubes on CCFL-backlit display panels]] (any model with a CCFL-backlit panel)
 ===Storage-related===
-*[[Problem with hard drive clicking | Clicking Hard Drive]] (models with Hitachi's 5k80 hard drive)
+*[[Problem with hard drive clicking|Problem with hard drive clicking noises caused by excessive head parking]] (any model with a AAM/APM-capable HDD)
-*[[Problem with failing Zip drive]] (Ultrabay 2000 Zip 250 drive)
+*[[Problem with failing Zip drive|Problem with failing Ultrabay 2000 Zip 250 drives]]
 ===Motherboard-related===
 *[https://forum.thinkpads.com/viewtopic.php?t=59577 Problem with faulty voltage regulators] (A2x, T20, T21, T22)
 ===Power-related===
-*[[Problem with ThinkPad 600 batteries|600 series Battery dying prematurely]] (600, 600E, 600X)
+*[[Problem with ThinkPad 600 batteries|Problem with premature battery death]] (600 series)
-*[[Damage in 56W AC-Adapter, plastic housing melted |AC-Adapter damaged, plastic housing melted]] <tt>(240, 390, i and s models)</tt>
+*[[Damage in 56W AC-Adapter, plastic housing melted|Problem with damaged 56 W AC adapters]]
-*[[High-pitch noise from AC-Adapter]] <tt>(T60/p)</tt>
+*[[High-pitch noise from AC-Adapter]]
 ==Software Problems==
@@ Line 78: / Line 86: @@
 ===BIOS/UEFI-related===
-*[[Problem with unauthorized MiniPCI network card|"Unauthorized" MiniPCI Wireless Network card error (Error 1802)]] <tt>(Recent TPs)</tt>
+*[[Problem with unauthorized MiniPCI network card|"Unauthorized" MiniPCI Wireless Network card error (Error 1802)]] (models with MiniPCI, MiniPCIe, and M.2 slots)
-*[[Problem with disabled VT]] <tt>(Z61t, X60, X60s)</tt>
+*[[Problem with lm-sensors]] (570E, 770X/Z, 600E/X, 240, X20)
-===Miscellaneous Problems===
+===External-related===
-*[[System randomly freezes and requires hard reset]] <tt>(X61s and all newer systems including X,T,R,Z series)</tt>
+*[[Problem with Dock USB Ports]]
 *[[Problems accessing cdrom drive]] <tt>(T400)</tt>
 *[[Problem with Overheating then reboot since Ubuntu 11.10]] <tt>(T500)</tt>
 ==Casing Problems==
 *Problem with hairline cracks forming nearby hinges (R3x)
-*[[Problem with Bending / Twisting|Casing malformed by bending/twising]] (X4x, T4x)
+*[[Problem with Bending / Twisting|Problem with malformed casing caused by bending/twisting]] (T4x, X4x)

@@ Line 62: / Line 62: @@
 *[[Problem with audio jacks | Audio jacks not working properly]] <tt>(TP T43)</tt>
 *[[Problem with ALSA audio output | No audio heard with kernel 2.6.11+/ALSA]] <tt>(TP T43, T40)</tt>
-*[[Problem with audio clipping|Audio clipping]] <tt>(TP T43)</tt>
+*[[Problem with audio clipping|Audio clipping]] <tt>(TP T43, R52)</tt>
 *[[Problem with no sound on ThinkPad R60e | No Sound on ThinkPad R60e and T60]] <tt>(R60e, T60)</tt>