SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                                (AMENDMENT NO. 1)

                             Synaptics Incorporated
                                (Name of Issuer)


                         Common Stock, $0.001 par value
                         (Title of Class of Securities)


                                    87157D109
                                 (CUSIP Number)


                                December 31, 2005
             (Date of Event Which Requires Filing of this Statement)

Check the following box to designate the rule pursuant to which the Schedule is
filed:

   [ ]   Rule 13d-1(b)
   [X]   Rule 13d-1(c)
   [ ]   Rule 13d-1(d)


*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



CUSIP NO. 87157D109


   1.    NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
         (ENTITIES ONLY)
         D. E. Shaw Meniscus Portfolios, L.L.C.
         51-0481096

   2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
         (A)          [ ]
         (B)          [ ]

   3.    SEC USE ONLY

   4.    CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware

NUMBER OF                 5.         SOLE VOTING POWER
SHARES
BENEFICIALLY
OWNED BY                             -0-
EACH
REPORTING
PERSON WITH
                          6.         SHARED VOTING POWER
                                     -0-

                          7.         SOLE DISPOSITIVE POWER
                                     -0-

                          8.         SHARED DISPOSITIVE POWER
                                     -0-

   9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         -0-

   10.   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS) [ ]

   11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         0%

   12.   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
         OO








CUSIP NO. 87157D109

   1.    NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
         (ENTITIES ONLY)
         D. E. Shaw & Co., L.P.
         13-3695715

   2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
         (A)          [ ]
         (B)          [ ]

   3.    SEC USE ONLY

   4.    CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware

NUMBER OF                 5.       SOLE VOTING POWER
SHARES
BENEFICIALLY
OWNED BY                           -0-
EACH
REPORTING
PERSON WITH
                          6.       SHARED VOTING POWER
                                   396,443
                          7.       SOLE DISPOSITIVE POWER
                                   -0-

                          8.       SHARED DISPOSITIVE POWER
                                   396,443

   9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         396,443

   10.   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS) [ ]

   11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         1.6%

   12.   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
         IA, PN








CUSIP NO. 87157D109

   1.    NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
         (ENTITIES ONLY)
         D. E. Shaw & Co., L.L.C.
         13-3799946

   2.    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
         (A)          [ ]
         (B)          [ ]

   3.    SEC USE ONLY

   4.    CITIZENSHIP OR PLACE OF ORGANIZATION
         Delaware

NUMBER OF                 5.         SOLE VOTING POWER
SHARES
BENEFICIALLY
OWNED BY                             -0-
EACH
REPORTING
PERSON WITH
                          6.         SHARED VOTING POWER
                                     -0-

                          7.         SOLE DISPOSITIVE POWER
                                     -0-

                          8.         SHARED DISPOSITIVE POWER
                                     -0-

   9.    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         -0-

   10.   CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
         (SEE INSTRUCTIONS) [ ]

   11.   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
         0%

   12.   TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
         OO









CUSIP NO. 87157D109

      1.   NAMES OF REPORTING PERSONS. I.R.S. IDENTIFICATION NOS. OF ABOVE
           PERSONS (ENTITIES ONLY)
           David E. Shaw

      2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
           (A)      [ ]
           (B)      [ ]

      3.   SEC USE ONLY

      4.   CITIZENSHIP OR PLACE OF ORGANIZATION
           United States

NUMBER OF                5.          SOLE VOTING POWER
SHARES
BENEFICIALLY
OWNED BY                             -0-
EACH
REPORTING
PERSON WITH
                         6.          SHARED VOTING POWER
                                     396,443

                         7.          SOLE DISPOSITIVE POWER
                                     -0-

                         8.          SHARED DISPOSITIVE POWER
                                     396,443

      9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           396,443

      10.  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
           (SEE INSTRUCTIONS) [ ]

      11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
           1.6%

      12.  TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
           IN







ITEM 1.
     (A)  NAME OF ISSUER
          Synaptics Incorporated



     (B)  ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
          3120 Scott Blvd. Suite 130
          Santa Clara, California 95054


ITEM 2.
     (A)  NAME OF PERSON FILING
          D. E. Shaw Meniscus Portfolios, L.L.C.
          D. E. Shaw & Co., L.P.
          D. E. Shaw & Co., L.L.C.
          David E. Shaw



     (B)  ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
          The business address for each reporting person is:
          120 W. 45th Street, Tower 45, 39th Floor
          New York, NY 10036



     (C)  CITIZENSHIP
          D. E. Shaw Meniscus Portfolios, L.L.C. is a limited liability company
          organized under the laws of the state of Delaware.
          D. E. Shaw & Co., L.P. is a limited partnership organized
          under the laws of the state of Delaware.
          D. E. Shaw & Co., L.L.C. is a limited liability company
          organized under the laws of the state of Delaware.
          David E. Shaw is a citizen of the United States of America.

     (D)  TITLE OF CLASS OF SECURITIES
          Common Stock, $0.001 par value

     (E)  CUSIP NUMBER
          87157D109



ITEM 3.  IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B) OR 13D-2(B)
         OR (C), CHECK WHETHER THE PERSON FILING IS A:

Not applicable

ITEM 4.  OWNERSHIP.

As of December 31, 2005:

(a) Amount beneficially owned:

    D. E. Shaw Meniscus Portfolios, L.L.C.:     -0- shares

    D. E. Shaw & Co., L.P.:                     396,443 shares

                                                This is composed of (i) 359,343
                                                shares in the name of D. E. Shaw
                                                Valence Portfolios, L.L.C., (ii)
                                                34,100 shares in the name of
                                                D. E. Shaw Valence, L.L.C., and
                                                (iii) 3,000 shares that
                                                D. E. Shaw Valence, L.L.C. has
                                                the right to acquire through the
                                                exercise of listed call options.


D. E. Shaw & Co., L.L.C.:                       -0- shares


David E. Shaw:                                  396,443 shares
                                                This is composed of (i) 359,343
                                                shares in the name of D. E. Shaw
                                                Valence Portfolios, L.L.C., (ii)
                                                34,100 shares in the name of
                                                D. E. Shaw Valence, L.L.C., and
                                                (iii) 3,000 shares that
                                                D. E. Shaw Valence, L.L.C. has
                                                the right to acquire through the
                                                exercise of listed call options.





(b) Percent of class:
    D. E. Shaw Meniscus Portfolios, L.L.C.:                 0%
    D. E. Shaw & Co., L.P.:                                 1.6%
    D. E. Shaw & Co., L.L.C.:                               0%
    David E. Shaw:                                          1.6%


(c) Number of shares to which the person has:
(i)   Sole power to vote or to direct the vote:
          D. E. Shaw Meniscus Portfolios, L.L.C.:      -0- shares
          D. E. Shaw & Co., L.P.:                      -0- shares
          D. E. Shaw & Co., L.L.C.:                    -0- shares
          David E. Shaw:                               -0- shares


(ii)  Shared power to vote or to direct the vote:
          D. E. Shaw Meniscus Portfolios, L.L.C.:      -0- shares
          D. E. Shaw & Co., L.P.:                      396,443 shares
          D. E. Shaw & Co., L.L.C.:                    -0- shares
          David E. Shaw:                               396,443 shares


(iii) Sole power to dispose or to direct the disposition of:
          D. E. Shaw Meniscus Portfolios, L.L.C.:      -0- shares
          D. E. Shaw & Co., L.P.:                      -0- shares
          D. E. Shaw & Co., L.L.C.:                    -0- shares
          David E. Shaw:                               -0- shares


(iv) Shared power to dispose or to direct the disposition of:
          D. E. Shaw Meniscus Portfolios, L.L.C.:      -0- shares
          D. E. Shaw & Co., L.P.:                      396,443 shares
          D. E. Shaw & Co., L.L.C.:                    -0- shares
          David E. Shaw:                               396,443 shares

David E. Shaw does not own any shares directly. By virtue of David E. Shaw's
position as President and sole shareholder of D. E. Shaw & Co., Inc., which is
the general partner of D. E. Shaw & Co., L.P., which in turn is the managing
member and investment adviser of D. E. Shaw Valence Portfolios, L.L.C., and the
managing member of D. E. Shaw Valence, L.L.C., David E. Shaw may be deemed to
have the shared power to vote or direct the vote of, and the shared power to
dispose or direct the disposition of, the 396,443 shares as described above
constituting 1.6% of the outstanding shares and, therefore, David E. Shaw may be
deemed to be the beneficial owner of such shares. David E. Shaw disclaims
beneficial ownership of such 396,443 shares.


ITEM 5.  OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
If this statement is being filed to report the fact that as of the date hereof
the reporting person has ceased to be the beneficial owner of more than 5
percent of the class of securities, check the following [x]

ITEM 6.  OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
Not Applicable

ITEM 7.  IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
         THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
         COMPANY OR CONTROL PERSON.
Not Applicable

ITEM 8.  IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Not Applicable

ITEM 9.   NOTICE OF DISSOLUTION OF GROUP
Not Applicable

ITEM 10.  CERTIFICATION
By signing below, each of D. E. Shaw Meniscus Portfolios, L.L.C., D. E. Shaw &
Co., L.P., D. E. Shaw & Co., L.L.C., and David E. Shaw certify that, to the best
of such reporting person's knowledge and belief, the securities referred to
above were not acquired and are not held for the purpose of or with the effect
of changing or influencing the control of the issuer of the securities and were
not acquired and are not held in connection with or as a participant in any
transaction having such purposes or effect.



SIGNATURE

After reasonable inquiry and to the best of their knowledge and belief, the
undersigned certify that the information set forth in this statement is true,
complete and correct. Powers of Attorney, dated February 24, 2004, granted by
David E. Shaw in favor of Eric Wepsic, are attached hereto.

Dated: February 10, 2006


                                        D. E. Shaw Meniscus Portfolios, L.L.C.
                                        By: D. E. Shaw & Co., L.L.C.,
                                            as managing member

                                            By: /s/Eric Wepsic
                                                ------------------
                                                Eric Wepsic
                                                Managing Director



                                        D. E. Shaw & Co., L.P.

                                        By: /s/Eric Wepsic
                                            ------------------
                                              Eric Wepsic
                                              Managing Director



                                        D. E. Shaw & Co., L.L.C.

                                        By: /s/Eric Wepsic
                                            ------------------
                                              Eric Wepsic
                                              Managing Director



                                        David E. Shaw

                                        By: /s/Eric Wepsic
                                            ------------------
                                              Eric Wepsic
                                              Attorney-in-Fact for David E. Shaw









                                    EXHIBIT 1

                                POWER OF ATTORNEY
                               FOR CERTAIN FILINGS
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934


I, David E. Shaw, hereby make, constitute and appoint each of:


         Anne Dinning,

         Julius Gaudio,

         Lou Salkind,

         Stuart Steckler, and

         Eric Wepsic,

acting individually, as my agent and attorney-in-fact, with full power of
substitution, for the purpose of, from time to time, executing in my name and/or
my capacity as President of D. E. Shaw & Co., Inc. (acting for itself or as the
general partner of D. E. Shaw & Co., L. P. and general partner or managing
member of other entities, any which in turn may be acting for itself or other
entities) all documents, certificates, instruments, statement, other filings,
and amendments to the forgoing (collectively, "documents") determined by such
person to be necessary or appropriate to comply with ownership or control-person
reporting requirements imposed by any United States or non-United States
governmental or regulatory authority, including without limitation Forms 3, 4,
5, 13D, 13F, and 13G required to be filed with the Securities and Exchange
Commission; and delivering, furnishing or filing any such documents with the
appropriate governmental or regulatory authority. Any such determination shall
be conclusively evidenced by such person's execution, delivery, furnishing,
and/or filing of the applicable document.

This power of attorney shall be valid from the date hereof and replaces the
power granted on February 5, 2001, which is hereby cancelled.

IN WITNESS HEREOF, I have executed this instrument as of the date set forth
below.

Date: February 24, 2004

DAVID E. SHAW, as President of
D. E. Shaw & Co., Inc.
/s/David E. Shaw
New York, New York






                                    EXHIBIT 2

                                POWER OF ATTORNEY
                               FOR CERTAIN FILINGS
                    UNDER THE SECURITIES EXCHANGE ACT OF 1934


I, David E. Shaw, hereby make, constitute and appoint each of:

         Anne Dinning,

         Julius Gaudio,

         Lou Salkind,

         Stuart Steckler, and

         Eric Wepsic,

acting individually, as my agent and attorney-in-fact, with full power of
substitution, for the purpose of, from time to time, executing in my name and/or
my capacity as President of D. E. Shaw & Co. II, Inc. (acting for itself and as
the managing member of D. E. Shaw & Co., L.L.C., which in turn may be acting for
itself or as the managing member of other companies) all documents,
certificates, instruments, statement, other filings and amendments to the
forgoing (collectively, "documents") determined by such person to be necessary
or appropriate to comply with ownership or control-person reporting requirements
imposed by any United States or non-United States governmental or regulatory
authority, including without limitation Forms 3, 4, 5, 13D, 13F and 13G required
to be filed with the Securities and Exchange Commission; and delivering,
furnishing or filing any such documents with the appropriate governmental or
regulatory authority. Any such determination shall be conclusively evidenced by
such person's execution and delivery, furnishing or filing of the applicable
document.

This power of attorney shall be valid from the date hereof and replaces the
power granted on February 5, 2001, which is hereby cancelled.

IN WITNESS HEREOF, I have executed this instrument as of the date set forth
below.

Date:  February 24, 2004

DAVID E. SHAW, as President of
D. E. Shaw & Co. II, Inc.
/s/David E. Shaw
New York, New York