High-pitch noise from AC-Adapter

2006-05-22T07:58:29Z

Sanhan: Added by HCZ

High-pitch noise from AC-Adapter
----
This appears in my T60 2007-4UH from Lenovo. I also found someone reported this problem on a T60p. I get no feedback from Lenovo or IBM for this problem.

Known Problems

2006-05-22T07:51:00Z

Sanhan: /* Power Management, AC-adapter or Battery Problems */

{| width="100%"
|style="vertical-align:top;padding-right:20px;width:10px;white-space:nowrap;" | __TOC__
|style="vertical-align:top" |
Information on known problems with certain ThinkPad models.
|}
==Display Problems==
*[[Problem with unusable console | Console unusable]] <tt>(models with savage video chipset: T2x, A22e)</tt>
*[[Problem with Pixel Error | Dead pixels on TFT displays]] <tt>(all models)</tt>
*[[Problem with DVI throughput | DVI throughput on port replicators and docks]] <tt>(models from 2000-2004)</tt>
*[[Problems with fglrx | fglrx problems]] <tt>(ATI Radeon models)</tt>
*[[Problem with garbled screen | Garbled Screen]] <tt>(T40, T41, T42, R40, A30, A31, A31p)</tt>
*[[Problem with broken inverter | Inverter broken]] <tt>(all models)</tt>
*[[Problem with key and trackpoint markings on the display | Key and Trackpoint markings on display]]
*[https://bugs.freedesktop.org/show_bug.cgi?id=2187 Radeon 7500 "DynamicClocks" randomly hangs] <tt>(TP T4x, Xorg-X11 bug report)</tt>
*[[Problem with red display shadow | Red shadow on display]] <tt>(TP T41p)</tt>
*[[Problem with red tinted display | Red tinted display]] <tt>(TP 23)</tt>
*[[Problem with black X | Unmovable square black X in X]] <tt>(TP T2x)</tt>
*[[Problem with video related system lockup | System Lockups related to video adapter]] <tt>(TP T2x)</tt>
*[[Problem with ati driver in xorg 6.9.x | System lockup soon after starting xorg 6.9.x ]] <tt>(TP T4x)</tt>
*[[Problem with video output switching | Video output switching]]

==Harddisk Drive related Problems==
*[[Problem with APS harddisk parking|APS harddisk parking]] <tt>(models featuring APS)</tt>
*[[Problem with too large harddrive|BIOS hangs with harddrive sized over 8G]] <tt>(560)</tt>
*[[Problem with hard drive clicking | Clicking Hard Drive]] <tt>(models with Hitachi's 5k80 hard drive)</tt>
*[[Problem with non-ThinkPad hard disks|Non-ThinkPad hard disks]] <tt>(T43, X41, R52)</tt>
*[[Problems with SATA and Linux|SATA and Linux]] <tt>(T43, X41, R52, Z60)</tt>

==Network Problems==
*[[Problem with 3Com 10/100 Ethernet card not being recognized|3Com 10/100 Ethernet card not recognized]] <tt>(models with that card)</tt>
*[[Problem with unauthorized MiniPCI network card|"Unauthorized" MiniPCI Wireless Network card error (Error 1802)]] <tt>(Recent TPs)</tt>
*[[Cisco Aironet Wireless 802.11b]] fails to work with certain firmware versions
*[[Problem with error 01C9 - More than one Ethernet devices | Error 01C9: More than one Ethernet Devices are found (Atheros WLAN MiniPCI)]] <tt>(T30, A31p, R40 and others)</tt>

==Power Management, AC-adapter or Battery Problems==
*[[Problem with ThinkPad 600 batteries | 600 series Battery dying prematurely]] <tt>(TP 600/E/X)</tt>
*[[Damage in 56W AC-Adapter, plastic housing melted |AC-Adapter damaged, plastic housing melted]] <tt>(240, 390, i and s models)</tt>
*[[Problems with ACPI suspend-to-ram|ACPI suspend-to-ram]] <tt>(ACPI sleep troubles)</tt>
**[[Problem with display remaining black after resume|Blank display after resume]] <tt>(various models)</tt>
**[[Problem with high power drain in ACPI sleep | High power drain in ACPI sleep]] <tt>(various models)</tt>
**[[Problem with LCD backlight remaining on during ACPI sleep | LCD backlight remaining on during ACPI sleep]] <tt>(various models)</tt>
*[[Problem with fan noise | Fan noise]] <tt>(TP T4x/p, TP R5x/p)</tt>
*[[Problem with checking battery status | Checking battery status causes mouse to jerk around]] <tt>(R31)</tt>
*[[Battery drains despite seemingly being charged]] <tt>(A/C adapter issues)</tt>
*[[High-pitch noise from AC-Adapter]] <tt>(T60/p)</tt>

==Sound Problems==
*[[Problem with broken sound on ThinkPad 600 | Broken sound on ThinkPad 600/E]] <tt>(TP 600/E/X, 770Z)</tt>
*[[Problem with audio jacks | Audio jacks not working properly]] <tt>(TP T43)</tt>

==Misc Problems==
*[[Problem with Bending / Twisting|Casing malformed by bending/twising]] <tt>(X41)</tt>
*[[Problem with Dock USB Ports | Dock USB Ports]] <tt>(T30)</tt>
*[[Problem with high pitch noises | High pitch noises]] <tt>(several models)</tt>
*[[Problem with lm-sensors | lm_sensors kills ThinkPads]] <tt>(TP 570E, 770X/Z, 600E/X, 240, X20)</tt>
*[[Problem with USB 2.0 | USB 2.0 problems]] <tt>(T40)</tt>

[[de:Bekannte_Probleme]]

ThinkWiki - User contributions [en]

High-pitch noise from AC-Adapter

Known Problems